HomeMy WebLinkAboutFile Documents.1 E Water Pl.0035-2023-BROF (5) Summary of Work
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CMW No. 2021.0022 Water Place Housing
January 18, 2023 Roofing Replacement Project
1. REMOVE EXISTING ASSEMBLY SECTION 01 10 00
SUMMARY OF WORK
PART 1 GENERAL
1.1 SUMMARY
A. Section Includes:
1. Project information.
2. Work covered by Contract Documents.
3. Access to site.
4. Coordination with occupants.
5. Work restrictions.
6. Specification and drawing conventions.
7. Miscellaneous provisions.
B. Related Requirements:
1. Division 01 Section “Temporary Facilities and Controls” for limitations and procedures
governing temporary use of Owner’s facilities.
C. Work Summary:
1. Remove
a. Existing Steep Slope Roof Areas:
1) Asphalt shingle roofing over a self-adhered underlayment membrane over a
plywood/OSB substrate and all associated flashings.
2. Install
a. New Steep Slope Roof Areas:
1) Install specified self-adhered underlayment. Install specified dimensional
asphalt shingle roofing assembly, including flashings, counter-flashings, and
gutters.
1.2 PROJECT INFORMATION
A. Project Identification: Water Place Affordable Housing.
1. Project Location: Water Place, Aspen, Colorado.
B. Owner: City of Aspen.
1. Owner’s Representative: Ben Levenson
a. Phone: (970) 309.5199
b. Email: ben.levenson@aspen.gov
C. Consultant: CMW Roof Consultants, Inc.
1. Consultant: Mr. Mike Gardner
a. Phone: (303)816-1852
b. Email: mike@cmwroofconsulting.com
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CMW No. 2021.0022 Water Place Housing
January 18, 2023 Roofing Replacement Project
1.3 ACCESS TO SITE
A. Use of Site: Limit use of Project site to work in areas indicated. Do not disturb portions of
Project site beyond areas in which the Work is indicated.
1. Driveways, Walkways and Entrances: Keep driveways parking garage, loading areas, and
entrances serving premises clear and available to Residents/Owners, Owner’s employees,
and emergency vehicles at all times. Do not use these areas for parking or storage of
materials.
a. Schedule deliveries to minimize use of driveways and entrances by construction
operations.
b. Schedule deliveries to minimize space and time requirements for storage of
materials and equipment on-site.
c. Do not damage existing conditions, provide protection of existing conditions for
access and loading of materials at project site.
B. Condition of Existing Building: Maintain portions of existing building affected by
construction operations in a weathertight condition throughout the construction period. Repair
damage caused by construction operations.
1.4 COORDINATION WITH OCCUPANTS
A. Full Owner Occupancy: Owner will occupy site and existing building(s) during entire
construction period. Cooperate with Owner during construction operations to minimize
conflicts and facilitate Owner usage. Perform the Work so as not to interfere with Owner’s
day-to-day operations. Maintain existing exits unless otherwise indicated.
1. Maintain access to existing walkways, corridors, and other adjacent occupied or used
facilities. Do not close or obstruct walkways, corridors, or other occupied or used
facilities without written permission from Owner and approval of authorities having
jurisdiction.
2. Notify Owner not less than 72 hours in advance of activities that will affect Owner’s
operations.
3. Do not allow any dust or fumes to enter building.
4. Meet with Owners project coordinator and provide MSDS for all materials to be used to
Owner prior to starting work.
5. Coordinate any temporary shut down or re-routing of mechanical equipment (such as
supply air intakes) during any potentially dust or fume generation portions of the work.
1.5 WORK RESTRICTIONS
A. Work Restrictions, General: Comply with restrictions on construction operations.
1. Comply with limitations on use of public streets and with other requirements of
authorities having jurisdiction.
B. On-Site Work Hours: Limit work in the existing building to normal business working hours of
8:00 a.m. to 5:00 p.m., Monday through Friday, unless otherwise indicated.
1. The Owner reserves the right to stop noisy work at any time due to sensitive procedures
being performed in occupied space below.
C. Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Owner or
others unless permitted under the following conditions and then only after providing
temporary utility services according to requirements indicated:
1. Notify Owner not less than two days in advance of proposed utility interruptions.
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January 18, 2023 Roofing Replacement Project
2. Obtain Owner’s written permission before proceeding with utility interruptions.
D. Noise, Vibration, and Odors: Coordinate operations that may result in high levels of noise and
vibration, odors, or other disruption to Owner occupancy with Owner.
1. Notify Owner not less than two days in advance of proposed disruptive operations.
2. Obtain Owner’s written permission before proceeding with disruptive operations.
E. Nonsmoking Building: Smoking is not permitted within the building, including on the roof or
within 25 feet of entrances, operable windows, or outdoor-air intakes.
F. Controlled Substances: Use of tobacco products and other controlled substances on Project
site is not permitted.
1.6 SPECIFICATION AND DRAWING CONVENTIONS
A. Specification Content: The Specifications use certain conventions for the style of language
and the intended meaning of certain terms, words, and phrases when used in particular
situations. These conventions are as follows:
1. Imperative mood and streamlined language are generally used in the Specifications. The
words “shall,” “shall be,” or “shall comply with,” depending on the context, are implied
where a colon (:) is used within a sentence or phrase.
2. Specification requirements are to be performed by Contractor unless specifically stated
otherwise.
B. Division 01 General Requirements: Requirements of Sections in Division 01 apply to the
Work of all Sections in the Specifications.
C. Drawing Coordination: Requirements for materials and products identified on Drawings are
described in detail in the Specifications. One or more of the following are used on Drawings to
identify materials and products:
1. Terminology: Materials and products are identified by the typical generic terms used in
the individual Specifications Sections.
2. Abbreviations: Materials and products are identified by abbreviations scheduled on
Drawings.
PART 2 PRODUCTS (NOT USED)
PART 3 EXECUTION (NOT USED)
END OF SECTION 01 10 00
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Preparation for Re-Roofing
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CMW No. 2021.0022 Water Place Housing
January 18, 2023 Roofing Replacement Project
SECTION 07 01 50.19
PREPARATION FOR RE-ROOFING
PART 1 GENERAL
1.1 SUMMARY
A. Section Includes:
1. Temporary roofing membrane.
2. Roof tear-off.
3. Roof installation preparation.
4. Removal of base flashings.
B. Related Sections:
1. Division 01 Section “Summary” for use of the premises and phasing requirements.
2. Division 01 Section “Temporary Facilities and Controls” for temporary construction and
environmental-protection measures for reroofing preparation.
1.2 MATERIALS OWNERSHIP
A. Except for items or materials indicated to be reused, reinstalled, or otherwise indicated to
remain Owner’s property, demolished materials shall become Contractor’s property and shall
be removed from Project site.
1.3 DEFINITIONS
A. Roofing Terminology: Refer to ASTM D 1079 and glossary in NRCA’s “The NRCA Roofing
and Waterproofing Manual” for definition of terms related to roofing work in this Section.
B. Existing Roofing Systems:
1. Asphalt Shingle Roofing Assemblies (Steep Slope Roof areas)
C. Remove: Detach items from existing construction and legally dispose of them off-site unless
indicated to be removed and reinstalled.
D. Existing to Remain: Existing items of construction that are not indicated to be removed.
1. Abandoned Equipment Curbs
1.4 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
B. Temporary Roofing: Include Product Data and description of temporary roofing system. If
temporary roof will remain in place, submit surface preparation requirements needed to
receive permanent roof, and submit a letter from roofing membrane manufacturer stating
acceptance of the temporary membrane and that its inclusion will not adversely affect the
roofing system’s resistance to fire and wind.
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CMW No. 2021.0022 Water Place Housing
January 18, 2023 Roofing Replacement Project
1.5 INFORMATIONAL SUBMITTALS
A. Qualification Data: For Installer.
B. Photographs or Videotape: Show existing conditions of adjoining construction and site
improvements, including exterior and interior finish surfaces that might be misconstrued as
having been damaged by reroofing operations. Submit before Work begins.
1.6 QUALITY ASSURANCE
A. Installer Qualifications: Installer of new specified roofing assemblies.
B. Regulatory Requirements: Comply with governing EPA notification regulations before
beginning roofing removal. Comply with hauling and disposal regulations of authorities
having jurisdiction. Comply with Owner requirements for Contractors.
C. Reroofing Conference: Conduct conference at Project site.
1. Meet with Owner; Consultant; Owner’s insurer if applicable; testing and inspecting
agency representative; roofing system manufacturer’s representative; roofing Installer
including project manager, superintendent, and foreman; and installers whose work
interfaces with or affects reroofing including installers of roof accessories and roof -
mounted equipment.
2. Review methods and procedures related to preparation of existing roofing system and
installation of new system including, but not limited to, the following:
a. Reroofing preparation, including new roofing assembly manufacturer’s written
instructions.
b. Temporary protection requirements for existing roofing system that is to remain
during and after installation (if applicable).
c. Existing roof drains and roof drainage during each stage of reroofing, and roof drain
plugging and plug removal requirements (if applicable).
d. Construction schedule and availability of materials, Installer’s personnel, equipment,
and facilities needed to make progress and avoid delays.
e. Existing deck removal procedures and Owner notifications.
f. Condition and acceptance of existing roof deck and base flashing substrate for reuse.
g. Structural loading limitations of deck during reroofing.
h. Base flashings, special roofing details, drainage, penetrations, equipment curbs, and
condition of other construction that will affect reroofing.
i. HVAC shutdown and sealing of air intakes.
j. Shutdown of fire-suppression, -protection, and -alarm and -detection systems.
k. Discovery of asbestos-containing materials.
l. Governing regulations and requirements for insurance and certificates if applicable.
m. Existing conditions that may require notification of Consultant before proceeding.
1.7 PROJECT CONDITIONS
A. Owner will occupy building immediately below reroofing area. Conduct reroofing so Owner’s
operations will not be disrupted. Provide Owner with not less than 72 hours’ notice of
activities that may affect Owner’s operations.
1. Coordinate work activities daily with Owner so Owner can place protective dust or water
leakage covers over sensitive equipment or furnishings, confirm any HVAC and fire-
alarm or -detection equipment impacts.
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B. Protect building to be reroofed, adjacent buildings, walkways, site improvements, exterior
plantings, and landscaping from damage or soiling from reroofing operations.
C. Maintain access to existing walkways, corridors, and other adjacent occupied or used
facilities.
D. Conditions existing at time of inspection for bidding will be maintained by Owner as far as
practical.
E. Limit construction loads from equipment and stored materials on roof. If questionable, provide
anticipated loads and/or loading to Consultant for structural analysis.
F. Weather Limitations: Proceed with reroofing preparation only when existing and forecasted
weather conditions permit Work to proceed without water entering existing roofing system or
building.
G. Hazardous Materials: It is not expected that hazardous materials such as asbestos-containing
materials will be encountered in the Work.
1. If materials suspected of containing hazardous materials are encountered, do not disturb;
immediately notify Consultant and Owner. Hazardous materials will be removed by
Owner under a separate contract.
1.8 WARRANTY
A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged
during reroofing, by methods and with materials so as not to void existing roofing system
warranty. Notify warrantor before proceeding.
1. Notify warrantor of existing roofing system on completion of reroofing, and obtain
documentation verifying that existing roofing system has been inspected and warranty
remains in effect. Submit documentation at Project closeout.
PART 2 PRODUCTS
2.1 TEMPORARY ROOFING MATERIALS
A. Design and selection of materials for emergency, temporary roofing are responsibilities of
Contractor.
PART 3 EXECUTION
3.1 PREPARATION
A. Protect existing equipment/surfaces/materials to remain.
1. Limit traffic and material storage to areas designated by Owner.
2. Maintain temporary protection and leave in place until replacement roofing has been
completed. Remove temporary protection on completion of reroofing.
B. Coordinate with Owner to temporarily shut down or re-rout air-intake equipment in the
vicinity of the Work. Confirm with Owner if any air-intake louvers can be covered before
proceeding with reroofing work that could affect indoor air quality or activate smoke detectors
in the ductwork.
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CMW No. 2021.0022 Water Place Housing
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C. During removal operations, have sufficient and suitable materials on-site to facilitate rapid
installation of temporary protection in the event of unexpected rain.
D. Maintain roof drains in functioning condition to ensure roof drainage at end of each workday.
Prevent debris from entering or blocking roof drains and conductors. Use roof-drain plugs
specifically designed for this purpose. Remove roof-drain plugs at end of each workday, when
no work is taking place, or when rain is forecast.
1. If roof drains are temporarily blocked or unserviceable due to roofing system removal or
partial installation of new membrane roofing system, provide alternative drainage method
to remove water and eliminate ponding. Do not permit water to enter into or under
existing membrane roofing system components that are to remain.
E. Verify that rooftop utilities and service piping have been shut off before beginning the Work.
F. Remove all abandoned mechanical or electrical equipment or other obstructions to t he
installation of the roof system.
G. Notify owner of any damaged or corroded equipment, conduit or drains that requires
replacement or any equipment that is to remain that is too short and will require extensions
and curbs.
3.2 ROOF TEAR-OFF
A. Roof Tear-Off: Remove existing roofing assembly and other roofing system components
down to the wood deck. Do not remove more roofing than can be made water-tight/dried-in
100 percent that same day.
1. Remove cover boards, roof insulation, and substrate boards.
2. Remove fasteners from deck or cut fasteners off flush with deck surface.
B. Check for presence of moisture by visually observing substrates.
1. Spot check with an electrical capacitance moisture-detection meter. Allow to dry prior to
roofing installation.
3.3 DECK PREPARATION
A. Inspect deck after tear-off of roofing system.
B. If deck surface is not suitable for receiving new roofing or if structural integrity of deck or
perimeter walls is suspect, immediately notify Consultant. Do not proceed with installation
until directed by Consultant.
3.4 EXISTING BASE FLASHINGS
A. Remove existing metal flashings at parapets, curbs, walls, and penetrations.
1. Clean substrates of contaminants such as asphalt, sheet materials, dirt, and debris.
B. Remove existing gutters (interior and exterior).
C. Inspect parapet sheathing for deterioration and damage. If parapet sheathing has deteriorated,
immediately notify Consultant.
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CMW No. 2021.0022 Water Place Housing
January 18, 2023 Roofing Replacement Project
3.5 DISPOSAL
A. Collect demolished materials and place in containers. Promptly dispose of demolished
materials. Do not allow demolished materials to accumulate on roof.
1. Storage or sale of demolished items or materials on-site is not permitted.
B. Transport and legally dispose of demolished materials off Owner’s property.
END OF SECTION 07 01 50.19
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CMW No. 2021.0022 Aspen Affordable Housing – Water Place
January 18, 2023
Asphalt Shingles
07 31 00
SECTION 07 31 00
ASPHALT SHINGLES
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Removal of existing roofing.
B. Asphalt roofing shingles.
C. Underlayment.
D. Metal flashing associated with shingle roofing.
1.2 RELATED SECTIONS
A. Section 06 10 00 - Rough Carpentry.
B. Section 07 62 00 - Sheet Metal Flashing and Trim.
1.3 REFERENCES
A. American Society of Civil Engineers (ASCE): ASCE 7 - Minimum Design Loads for
Buildings and Other Structures.
B. Asphalt Roofing Manufacturers Association (ARMA).
C. ASTM International (ASTM):
1. ASTM D 3018 - Standard Specification for Class A Asphalt Shingles Surfaced with
Mineral Granules.
2. ASTM D 3161 - Standard Test Method for Wind-Resistance of Asphalt Shingles
(Fan-Induced Method).
3. ASTM D 3462 - Standard Specification for Asphalt Shingles Made from Glass Felt
and Surfaced with Mineral Granules.
4. ASTM A 653/A 653M - Standard Specification for Steel Sheet, Zinc Coated
(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.
5. ASTM D 4586 - Standard Specification for Asphalt Roof Cement, Asbestos-Free.
D. National Roofing Contractors Association (NRCA).
E. Sheet Metal and Air Conditioning Contractors National Association, 1nc. (SMACNA) -
Architectural Sheet Metal Manual.
F. Underwriters Laboratory (UL)
1. UL 790 - Tests for Fire Resistance of Roof Covering Materials.
2. UL 997 - Wind Resistance of Prepared Roof Covering Materials.
1.4 DEFINITIONS
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CMW No. 2021.0022 Aspen Affordable Housing – Water Place
January 18, 2023
A. Roofing Terminology: Refer to ASTM D1079 and the glossary of the National Roofing
Contractors Association (NRCA) Roofing and Waterproofing Manual for definitions of
roofing terms related to this section.
1.5 SUBMITTALS
A. Submit under provisions of Section 01 30 00 - Administrative Requirements.
B. Product Data: Manufacturer's data sheets on each product to be used, showing compliance
with requirements.
C. Installation Instructions: Manufacturer's installation instructions, showing required
preparation and installation procedures.
1.6 QUALITY ASSURANCE
A. Manufacturer Qualifications: Provide all primary roofing products, including shingles,
underlayment by a single manufacturer.
B. Installer Qualifications: Installer must be approved by manufacturer for installation of all
roofing products to be installed under this section.
1.7 REGULATORY REQUIREMENTS
A. Provide a roofing system achieving an Underwriters Laboratories (UL) Class A fire
classification.
B. Install all roofing products in accordance with all federal, state and local building codes.
C. All work shall be performed in a manner consistent with current OSHA guidelines.
1.8 PRE-INSTALLATION MEETINGS
A. Convene a pre-installation meeting a minimum two weeks prior to starting work of this
section.
1. Contractor shall schedule and arrange meeting and meeting place and notify attendees.
2. Mandatory Attendees: Roofing installer and manufacturer's steep slope technical
representative, Owner's representative, and Consultant's representative.
3. Review all pertinent requirements for achieving the warranty specified below and set
schedule for final warranty inspection.
1.9 DELIVERY, STORAGE, AND HANDLING
A. Store products in manufacturer's unopened labeled packaging until ready for installation.
B. Store products in a covered, ventilated area, at temperature not more than 110 degrees F (43
degrees C); do not store near steam pipes, radiators, or in sunlight.
C. Store bundles on flat surface to maximum height recommended by manufacturer; store rolls
on end.
D. Store and dispose of solvent-based materials, in accordance with requirements of local
authorities having jurisdiction.
1.10 WEATHER CONDITIONS
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January 18, 2023
A. Proceed with work only when existing and forecasted weather conditions will permit work to
be performed in accordance with roofing shingle manufacturer's recommendations.
1.11 WARRANTY
A. Provide manufacturer's standard limited warranty:
a. Warranty Duration: 30 years.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Acceptable Manufacturesr:
1. GAF, Residential Roofing Products, 1 Campus Drive Parsippany, NJ 07054
2. CertainTeed Residential Roofing Products, 20 Moores Road, Malvern, PA 19355
B. Substitutions: See Section 01 25 00 Substitution Procedures.
2.2 SHINGLES
A. Timberline HD Lifetime High Definition Shingles, by GAF:
B. Landmark Premium Shingles, by Certainteed.
2.3 STARTER STRIPS
A. Self-sealing starter shingle designed for premium roof shingles.
B. Pre-cut, color coordinated starter strip shingle designed as a second starter course for
shingles with large cut-outs.
2.4 UNDERLAYMENT
A. Self-adhering, self-sealing, bituminous underlayment.
1. Grace Ice & Water Shield HT
2. Consultant Approved membrane.
2.5 ROOFING CEMENT
A. Asphalt Plastic Roofing Cement meeting the requirements of ASTM D 4586, Type I or II.
2.6 NAILS
A. Nails: Standard round wire, zinc-coated steel or aluminum; 10 to 12 gauge, smooth, barbed
or deformed shank, with heads 3/8 inch (9mm) to 7/16 inch (11mm) in diameter. Length
must be sufficient to penetrate into solid wood at least 3/4 inch (19mm) or through plywood
or oriented strand board by at least 1/8 inch (3.18mm).
2.7 METAL FLASHING
A. Pre-finished Steel: 24 g.
PART 3 EXECUTION
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CMW No. 2021.0022 Aspen Affordable Housing – Water Place
January 18, 2023
3.1 EXAMINATION
A. Do not begin installation until roof deck has been properly prepared.
3.2 REMOVAL OF EXISTING ROOFING
A. Remove all existing roofing down to the roof deck.
B. Verify that deck is dry, sound, clean and smooth, free of depressions, waves and projections.
C. Cover with sheet metal all holes over 1 inch (25 mm) diameter, cracks over 1/2 inch (12
mm) in width, loose knots and excessively resinous areas.
D. Replace damaged deck with new materials.
E. Clean deck surfaces thoroughly prior to installation of eaves protection membrane and
underlayment.
3.3 PREPARATION OF SUBSTRATE
A. Clean deck surfaces thoroughly prior to installation of leak barrier and roof deck protection.
3.4 INSTALLATION OF UNDERLAYMENT
A. Install using methods recommended by manufacturer in accordance with local building code.
When local codes and application instructions are in conflict, the more stringent
requirements shall take precedence.
B. Roof Deck:
1. Place eave edge metal flashing tight with fascia boards and/or gutters.
2. Install specified underlayment, lap ends 6 inches (150 mm) and bond.
3.5 INSTALLATION OF SHINGLES
A. Install in accordance with manufacturer's instructions and requirements of local building
code.
1. Avoid breakage of shingles by avoiding dropping bundles on edge, by separating
shingles carefully (not by "breaking" over ridge or bundles), and by taking extra
precautions in temperatures below 40 degrees F (4 degrees C).
2. Handle carefully in hot weather to avoid damaging shingle edges.
3. Secure with 6 nails per shingle. Nails must be long enough to penetrate through
plywood or OSB, or 3/4 inch (19 mm) into dimensional lumber**.
3.6 PROTECTION
A. Stage work progress so that traffic is minimized over completed roofing.
B. Protect installed products until completion of project
END OF SECTION
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SECTION 07 62 00
SHEET METAL FLASHING AND TRIM
PART 1 GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 1-Specification sections, apply to work of this section.
1.2 DESCRIPTION
A. Work Included: Work consists of furnishing all labor, materials and equipme nt necessary to
effectively install the flashing as shown on the Drawings or described in these Specifications,
including, but not necessarily limited to, the following:
1. New valley flashing and edge metal.
2. New Gutters and Downspouts
3. New miscellaneous accessories.
4. New miscellaneous flashings.
B. Related Work Specified Elsewhere
1. Division 07 – 07 01 50.19 Preparation for Re-Roofing
2. Division 07 – 07 31 00 Asphalt Shingles
3. Division 07 – 07 71 43 Roof Snow and Ice Melt System
4. Division 07 – 07 72 00 Roof Accessories
1.3 QUALITY CONTROL
A. Requirements of Regulatory Agencies: The Work under this section shall be subject to all
applicable provisions of the state and local building and safety codes.
B. Qualifications
1. Prior to the Notice of Award, the Contractor shall submit evidence that his exi sting
company has five (5) years continuous successful experience in applying specified
material(s) and is currently an approved applicator for the specific material
manufacturer(s).
C. Reference Standards: Except as modified by the Drawings and Specifications, the following
documents or applicable portions thereof, govern the work.
1. Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA)
"Architectural Sheet Metal Manual - Sixth Edition."
2. National Roofing Contractors Association (NRCA) "Roofing and Waterproofing Manual-
Fifth Edition."
1.4 SUBMITTALS
A. Required After the Completion of Work
1. Contractor's warranty per Section 00 72 00.
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1.5 JOB CONDITIONS
A. All dimensions and existing details shall be field-verified by contractor prior to bidding and
acquisition or installation of materials. Contractor shall notify the Consultant of any existing
condition found to be different than that indicated in the contract documents. Consultant shall
review the situation and inform contractor of necessary changes, if any.
1.6 CHANGES IN THE WORK
A. During reroofing work, the contractor may encounter existing conditions which are not now
known or are at variance with the Drawings or Specifications (discovery). Such conditions may
interfere with reroofing work and may consist of damage or deterioration to the deck or
surrounding materials or components which could jeopardize the integrity of the new roof.
The contractor shall notify the Consultant of all discoveries he believes may interfere with
proper execution of the work or jeopardize the integrity of the new roof prior to proceeding
with work related to such discoveries.
B. In the event of discrepancies within the Drawings, within the Specifications, or between the
Drawings and Specifications, the more stringent of the two items shown or described shall be
considered to be shown or specified at all locations where the discrepancies occur. The
Consultant shall be notified of such discrepancies.
C. When a substitute or alternate is requested by the Contractor, and such substitute or alternate is
accepted by the Consultant, the Contractor shall bear all additional costs which may arise
directly or indirectly from the use of the substitute or alternate.
PART 2 PRODUCTS
2.1 MATERIALS
A. Sheet Metal
1. Prefinished Galvanized Steel: Commercial quality (AISI Class G90), 24 gauge, hot-
dipped, galvanized steel primed and coated with a full strength fluoropolymer system of
1.0 mil (minimum) dry-film thickness on the exposed side and a white wash coat of 0.3 mil
(minimum) dry-film thickness on the unexposed side.
2. Color shall be chosen by Owner.
B. Fasteners
1. Metal (exposed) to Wood: "Teks" fasteners, 10 - 16 x 3/4 in. HWH Teks/1 with an EPDM
sealing washer, as manufactured by ITW Buildex, Itasca, Illinois or Consultant-approved
equal.
2. Metal (concealed) to Wood: Galvanized nails - minimum 6D.
3. Metal to Metal: "Teks" fasteners, 10 - 16 x 3/4 in. HWH Teks/1 with an EPDM sealing
washer, as manufactured by ITW Buildex, Itasca, Illinois or Consultant-approved equal.
4. Metal to Masonry: Zamac Nalin Anchors, 1/4 in. x 1 in. (minimum), carbon steel,
mushroom head, as manufactured by Ringo Johnson Industrial, Zhejiang, China.
*NOTE* All exposed fasteners must include an EPDM or neoprene washer.
C. Miscellaneous Accessories
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January 18, 2023 Roofing Replacement Project
1. Solder: ASTM B32, 50 percent tin and 50 percent lead.
2.2 FABRICATION
A. Field document the required configuration and measurements of all new flashings prior to
fabrication.
B. Shop fabricate new sheet metal shapes in 10-foot long sections, or as long as practical.
C. Form sections square, true and accurate to shape and size, free from distortion and other defects
detrimental to appearance or performance.
PART 3 EXECUTION
3.1 COORDINATION
A. Coordinate sheet metal operations with new membrane and flashing installation specified in
Section 07 53 23- EPDM Single-Ply Membrane Roofing.
3.2 PREPARATION OF SUBSTRATE
A. Examine the surface condition of the substrate on which sheet metal is to be installed. Do not
proceed with the new installation until unsatisfactory conditions have been corrected in a
manner approved by the Architect/Consultant.
B. Clean the substrate of obstructions and substances detrimental to the work.
C. Proceeding with the work shall signify the Contractor's acceptance of the substrate being
covered by the new sheet metal installation.
3.3 SHEET METAL INSTALLATION
A. Install new sheet metal fabrications and accessories as shown on the Drawings.
B. Install new sheet metal fabrications true to lines and levels.
C. Owner shall select color of all pre-finished metals prior to fabrication.
D. Where work is not otherwise shown or specified, conform to details and requirements set forth
in Reference Standards 1.3 C.
E. Where materials or construction systems are specified with reference to a particular
manufacturer (such as caulking and sealants), make installations in strict accord with the
approved manufacturer's installation instructions.
F. Accurately reproduce profiles and bends; make intersections sharp, even and true. Make plain
surfaces free from buckles and waves with as few joints as possible. Reinforce work as required
for strength and appearance.
G. Bend metals to minimum radius recommended by manufacturer for thickness used (in general,
the radius shall be not less than the thickness of metal).
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H. Provide for proper expansion and contraction. Make joints tight. Conceal nails and other
fastenings where possible. Face nailing through exposed surfaces is not permitted. Secure
exposed edges to underlying materials with clips or tabs (edge strips).
I. Make seams in direction of flow.
J. Hem exposed edges of sheet metal work 1/2 inch.
K. Provide continuous clips for sheet metal as shown on drawing. Unless otherwise specified,
clips shall be not less than 3 inches wide and of the same material and thickness as the sheet
metal being installed.
L. Properly apply caulking and sealants to sheet metal items to permit movement between surfaces
and to make entire installation watertight.
M. Soldering: Roughen smooth surfaces with clean emery cloth or sandpaper; do not use steel
wool. Use well-heated irons. Solder slowly, thoroughly heating seams and completely sweating
solder through full width with at least 1 inch of solder evenly flowed along seams. Wherever
possible, solder in a flat position. Solder seams on slopes greater than 45E a second time. Solder
immediately after application of flux; after soldering, immediately neutralize any corrosive flux
with 5 percent soda solution and flush with clean water. Soldering of exposed surfaces shall be
neatly done. Exposed solder shall be dressed and finished. Soldering shall be employed only
to seal or fill seams. Where structural strength is required, do not rely on solder alone but use
supplementary mechanical fasteners.
3.4 FLASHING
A. Flashings
1. Install flashings required to provide watertight protection.
2. Carry flashings around corners 4 inches minimum; metal soldered or otherwise joined at
the angle is not permitted. Three-way angles shall have the corners soldered watertight.
3. Flashings installed to be fully restrained shall be nailed at 3-inch centers (max.); otherwise
use clips or cleats.
4. Unless metal manufacturer has more stringent requirements, make up continuous straight
runs of sheet metal in 10 ft. minimum lengths. Unless otherwise shown or specified,
connect continuous runs together with 3-inch loose-lock expansion joints sealed watertight
with sealant. Provide expansion joints at 10 ft. maximum fr om any external or internal
corners.
5. Flashing at Roof Penetrations and Equipment Supports: Provide flashing for all scuppers,
pipes, ducts, and conduits projecting through the roof surface and for equipment supports
and similar items supported by or attached to the roof deck. All flashings shall have
continuous metal flange at roof level not less than 4 inches wide, and all joints and
connections must be soldered and watertight.
6. Intersection/Wall Terminations: Provide sheet metal closing at all intersections and
terminations between walls of adjoining areas. All terminations will be permanent,
watertight metal closings of 24-gauge prefinished metal.
7. Owner shall select color of all pre-finished metals prior to fabrication.
3.5 GUTTERS AND DOWNSPOUTS
A. Gutters
1. Install gutters and downspouts at all locations where previously installed.
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2. Downspouts shall be open type.
3. Install gutter hangers at maximum of 18” on center.
4. Owner shall select color of all pre-finished metals prior to fabrication of Gutters and
Downspouts
3.6 PROTECTION
A. Protection: Protect dissimilar metals subject to galvanic corrosion from contact with each other
and from other surfaces which cause corrosion of metal.
3.7 CLEANUP
A. Remove trash, debris, and equipment from the jobsite.
B. Repair damage and remove stains caused by the Work.
END OF SECTION
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SECTION 07 70 00
ROOF AND WALL SPECIALTIES AND ACCESSORIES
PART 1 GENERAL
1.1. SUMMARY
A. Section includes a UL Listed, CSA Certified and FM Approved gutter de-icing system that
consists of a self-regulating trace heater, connection kits and electronic controller.
B. Related Requirements
1. Section 07 01 50.19 – Preparation for Re-Roofing
2. Section 07 31 00 – Asphalt Shingles
3. Section 07 62 00 – Sheet Metal Flashing and Trim
4. Section 07 71 43 – Roof Snow and Ice Melt System
5. Section 07 72 00 – Roof Accessories
1.2. REFERENCES
A. Reference Standards
1. UL515 – Electrical Resistance Heat Tracing for Commercial Applications
2. IEEE 515.1-2012 Standard for the Testing, Design, Installation & Maintenance of
Electric Resistance Trace Heating for Commercial Applications.
3. CSA Standard C22.2 No. 130-03 Requirements for Electrical Resistance Heating Cables
& Heating Device Sets
4. NFPA 70 - National Electrical Code
5. CSA Standard C22.1 – Canadian Electrical Code
1.3. SYSTEM DESCRIPTION
A. System includes a complete roof and gutter de-icing system that consists of self-regulating
trace heater, connection kits, and ambient, surface, and moisture sensing control, monitoring,
integrated ground-fault circuit protection and Building Management System (BMS)
communication capabilities.
B. Heating cable must only be used for de-icing. Heating cable must not be installed inside
building, in conduit or under any form of insulation. Use appropriately-sized power source
wiring and proper power connection accessories to connect heating cable to the power source.
1.4. ACTION SUBMITTALS / INFORMATIONAL SUBMITTALS
A. Product Data
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1. Heating cable data sheet
2. UL Listed, CSA Certified, or FM Approved certificates for roof and gutter de-icing
3. Roof and gutter design sheet
4. System installation and operation instructions
5. System installation details
6. Connection kits and accessories data sheet
7. Controller wiring diagram
B. Shop Drawings
1. Provide engineered isometric drawings showing layouts for roof, indicating power
connections, splice, end seals, circuit layout, and circuit cable length.
1.5. QUALITY ASSURANCE
A. Source Limitations: All system components [heating cable, connection kits, and controller]
shall be sourced from a single manufacturer; under no circumstances shall any components be
installed other than those supplied by the cable manufacturer, to ensure system integrity and to
meet warranty requirements.
B. Qualifications
1. Manufacturers
a. Manufacturer to show minimum of forty (40) years of experience in manufacturing
electric self-regulating heating cables.
b. Manufacturer will be ISO-9001 registered.
c. Manufacturer to provide heating cable consistent with IEEE 515.1 and CSA 22.2 No
130-03 requirements.
d. The self-regulating heating cable shall be qualified and tested to demonstrate a
useful lifetime in excess of 20 years.
e. The manufacturer shall provide an extensive global reference list for this
application, including installations that have been in operation for over 15 years.
2. Installers
a. System installer shall have complete understanding of product and product literature
from manufacturer or authorized representative prior to installation. Electrical
connections shall be performed by a licensed electrician.
3. Electrical Components, Devices, and Accessories: Listed and labelled as defined in NFPA
70, Article 100, by a Nationally Recognized Testing Laboratory (NRTL), and marked for
intended use.
C. Certifications
1. The system (heating cable, connection kits, and controller) shall be UL Listed, CSA
Certified, or FM Approved for roof and gutter de-icing.
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1.6. DELIVERY, STORAGE, AND HANDLING
A. Delivery And Acceptance Requirements
1. Deliver, store and handle products to prevent their deterioration or damage due to
moisture, temperature changes, contaminates or other causes.
2. Deliver products to site in original, unopened containers or packages with intact and
legible manufacturers’ labels identifying the following:
a. Product and Manufacturer
b. Length/Quantity
c. Lot Number
d. Installation and Operation Manual
e. MSDS (if applicable)
B. Storage And Handling Requirements
1. Store the heating cable in a clean, dry location with a temperature range 0°F (-18°C) to
140°F (60°C).
2. Protect the heating cable from mechanical damage.
1.7. WARRANTY
A. Manufacturer Warranty
1. nVent warrants all goods listed below for two (2) years from date of purchase against
faulty workmanship and use of defective materials when such goods are properly
installed, operated, and maintained according to product documentation. See Limited
Product Warranty (H57396) at www.nVent.com/RAYCHEM.
a. Heating cables, connection kits and accessories
b. Thermostats, controllers, panels, contactors, sensors and accessories
B. Special Warranty –
1. Contractor shall provide the owner an extended product warranty for the heat tracing
products listed below. The contractor must complete and forward to owner the
Installation, Inspection or Commissioning Record(s), and complete the online warranty
registration form within thirty (30) days from the date of installation, otherwise only
standard limited warranty applies. See Limited Product Warranty Extension details
(H57397) at www.nVent.com/RAYCHEM.
a. Heating Cable and Components shall be Ten (10) Years from Date of Purchase
C. Heating cables, connection kits and accessories not automatically offered with a 10 year
manufacturer’s warranty, as a standard matter of course, will not be allowed. Warranty
information must be published on the manufacturer's website.
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PART 2 PRODUCTS
2.1. HEAT TRACING SYSTEM
A. Manufacturers
1. Basis of Design Manufacturer: Subject to the compliance with requirements, provide
nVent RAYCHEM heat tracing products of nVent Thermal Management, LLC
Redwood City 94063, 800-545-6258;
Email: thermal.info@nvent.com Website: www.nVent.com/RAYCHEM
2. Provide specified product; Consultant will consider substitution requests.
B. Materials
1. Heating cables shall be nVent RAYCHEM IceStop self-regulating heating cables
specifically designed for the intended application, tested and approved to UL 515, CSA
22.2 No 130-03 and IEEE 515.1 requirements.
a. The construction of the self-regulating heating cable shall consist of a continuous
core of conductive polymer that is radiation crosslinked, extruded between two (2)
16 AWG nickel‐plated copper bus wires that varies its power output in response to
temperature changes.
b. The heating cable shall have a modified polyolefin inner jacket for dielectric
integrity and long life expectancy.
c. The heating cable shall have a tinned copper braid with minimum 70% coverage for
ground path and mechanical ruggedness.
d. The heating cable shall have a FLUOROPOLYMER (-XT) outer jacket printed
with cable model number, agency listings, batch number and meter marks (for ease
of installation within maximum circuit length)
e. The heating cable shall have a self-regulating factor of at least 70 percent. The self-
regulating factor is defined as the percent reduction of the heating cable power
output going from a 0°F to 80°F temperature.
f. The heating cable shall operate on voltages of 120, or 240 volts without the use of
transformers.
g. The heating cable shall be part of a UL Listed, CSA Certified, and FM Approved
system.
h. Constant wattage cables are not acceptable.
2. Heating Cable Connection Kits (Installation of System to be performed by Roofing
Contractor and Electrical connections to be performed by others)
a. Heating cable connection kits shall be nVent RAYCHEM RayClic.
b. Manufacturer shall provide power connection, splice/tee and end seal kits
compatible with selected heating cable.
c. Installation shall not require the installing contractor to cut into the heating-cable
core to expose the bus wires.
d. Connection kits shall be rated NEMA 4X to prevent water ingress and corrosion. All
components shall be UV stabilized
e. Connection kits shall be UL Listed, CSA Certified and FM Approved.
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3. Heating Cable Installation Accessories
a. Roof clips – Used to secure IceStop heating cables to roofs and gutters. The clips
may be attached with mechanical fasteners (screws or nails) on shake roofs or using
adhesive on metal, slate or composite roofing. (Catalog Number: GMK-RC)
b. Downspout Hangers - Used to provide mechanical protection and strain relief to the
IceStop heating cable as it goes over sharp edges and to hold the heating cable in
place at the top of downspouts. (Catalog Number: GMK-RAKE)
c. Cable cover bracket shall be used to enhance the heat transfer from the heating cable
to the snow and create larger drain paths
d. RIM-DRAINTRACE (RIM-DT) shall be used on all flat roof drains to keep the roof
drains free of ice and snow.
4. Energy Efficient Control System
a. Single Circuit Local Digital Control System
1. Single circuit snow/ice melting controller shall be APS-3C or APS-4C
2. Heating cable manufacturer shall provide a single circuit snow/ice melting
controller with built-in GFPD compatible with selected heating cable. (APS-
4C only)
3. Electronic snow/ice melting controller shall have a GFPD with adjustable
trip levels of 30, 60, 120 mA. (APS-4C only)
4. Electronic snow/ice melting controller shall have 24-A (APS-3C) or 40-A
(APS-4C) [Select one] switching capacity rating.
5. Electronic snow/ice melting controller shall be capable of operating with
supply voltages of 120, 208 – 240 V (APS-3C) or 208, 240, 277 V (APS-4C)
[Select one].
6. Electronic snow/ice melting controller shall be capable of supporting up to
six (6) aerial or gutter mounted temperature/moisture sensors.
7. Enclosure type shall be NEMA 3R polycarbonate.
8. Electronic snow/ice melting controller shall have an adjustable hold-on timer
(0 – 10 hours).
9. Electronic snow/ice melting controller shall have an integrated high-limit
temperature sensor.
10. Electronic snow/ice melting controller shall have contacts to interface with
an Energy Management Computer (EMC).
11. Digital controller shall have c-UL-us approvals.
b. Multi-Circuit, Group Control System
1. Group controller shall be nVent RAYCHEM SMPG1 snow melting and de-
icing power distribution and control panel.
2. Heating cable manufacturer shall provide a group snow/ice melting controller
with built-in GFPD compatible with selected heating cable.
3. Group snow/ice melting controller shall have an integrated 30-mA ground-
fault circuit breaker.
4. Group snow/ice melting controller shall have 6, 12, or 18 ground-fault circuit
breakers rated up to 50 A.
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5. Group snow/ice melting controller shall have a main circuit breaker
6. Group snow/ice melting controller shall be capable of operating with supply
voltages of 208 V
7. Group snow/ice melting controller shall be capable of supporting up to six
(6) aerial or gutter mounted temperature/moisture sensors.
8. Group snow/ice melting controller enclosure shall be NEMA 1/12 or NEMA
3R/4
9. Group snow/ice melting controller shall have an adjustable hold-on timer (0
– 10 hours).
10. Group snow/ice melting controller shall have an integrated high-limit
temperature sensor.
11. Electronic snow/ice melting controller shall have contacts to interface with
an Energy Management Computer (EMC).
12. Digital controller shall have c-UL-us approvals
c. Multi-Circuit, Distributed Digital Control System
1. All roof and gutter de-icing circuits shall be controlled and monitored using a
distributed digital control system, known as ACS-30, manufactured by nVent.
2. Multi-application: Distributed digital control system shall have pre-
programmed parameters to provide concurrent control for heating cables
used for pipe freeze protection, flow maintenance, hot water temperature
maintenance, surface snow melting, roof and gutter de-icing, freezer frost
heave prevention and floor heating applications.
3. All programming shall be done through the central User Interface Terminal
(ACS-UIT2).
4. The ACS-UIT2 shall be a color LCD touch-screen display with password
protection to prevent unauthorized access to the system.
5. The ACS-UIT2 shall communicate with up to fifty-two (52) ACS Power
Control Panels (ACS-PCM2-5) where each panel can control up to five (5)
circuits and accept up to five (5) temperature inputs. C910-485 controllers
may also be added to the ACS-30 system for single circuit extensions.
6. Digital control system shall be capable of assigning up to four (4) RTD
temperature inputs per heat-tracing circuit.
7. The ACS-UIT2 shall communicate with up to sixteen (16) Remote
Monitoring Modules (RMM2), where each module can accept up to eight (8)
temperature inputs.
8. The ACS-UIT2 shall have a USB port to allow for quick and easy software
update.
9. The ACS-UIT2 shall have three (3) programmable alarm contacts including
an alarm light on the enclosure cover.
10. A separate offline software tool shall be made available to allow users to pre-
program the digital control system and transfer program via a USB drive or
Ethernet.
11. The ACS-UIT2 enclosure shall be NEMA 4 for indoor or outdoor locations.
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12. The ACS-PCM2-5 panel shall be in a NEMA 4/12 enclosure approved for
nonhazardous indoor and outdoor locations.
13. The ACS-PCM2-5 panel shall provide ground-fault and line current sensing
alarming, switching and temperature inputs for five (5) heat tracing circuits.
14. Each ACS-PCM2-5 panel shall have five (5) 3-pole, 30 A contactors (EMR
type).
15. The ACS-PCM2-5 panel shall be capable of operating at 120 V to 277 V.
16. The ACS-PCM2-5 shall have an alarm contact including an alarm light on
the panel cover.
17. Digital controller shall have an integrated adjustable GFPD (10 – 200 mA).
18. Digital control system will have a built-in self-test feature to verify proper
functionality of heating cable system.
19. The following variables will be monitored by the digital controller and
reported back to the BMS.
a. Temperature
b. Ground-fault
c. Current draw
d. Power consumption
e. Associated alarms
20. The ACS-UIT2 shall be c-CSA-us Certified. The ACS-PCM2-5 panel shall
be c-UL-us Listed.
5. Approval
a. The system (heating cable, connection kits, and controller) shall be UL Listed, CSA
Certified and FM Approved for roof & gutter de-icing.
b. The roof & gutter de-icing system shall have a design in accordance with the
IceStop Design Guide requirements. (H56070)
PART 3 EXECUTION
3.1. EXAMINATION
A. Verification Of Conditions
1. Prior to installing heating cable on the roof, an insulation resistance test shall be
performed by the installing contractor to ensure integrity of heating cable as described in
the installation and maintenance manual.
3.2. PREPARATION
A. Protection Of In-Place Conditions
1. All heating cable ends shall be protected from moisture ingress until cable is terminated.
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3.3. INSTALLATION
A. Comply with manufacturer’s recommendations in the IceStop System heating cable and
connection kits Installation and Operation manuals. (H58067)
B. Install and secure the system in accordance with the IceStop System Installation and Operation
Manuals. (H58067)
C. Install electric heating cable according to the drawings and the manufacturer’s instructions.
The installer shall be responsible for providing a complete functional system, installed in
accordance with applicable national and local requirements.
D. Grounding of the system shall be done according to Section 26 05 26 "Grounding and
Bonding for Electrical Systems." Heating cable braid must be connected to appropriate
ground.
E. Connection of all electrical wiring shall be according to Section 26 05 19 "Low-Voltage
Electrical Power Conductors and Cables.
3.4. FIELD QUALITY CONTROL
A. Initial start‐up and field testing (commissioning) of the system shall be performed by factory
technician or factory representative per the owner’s requirements.
B. Field Tests And Inspections
1. The system shall be commissioned in accordance to the IceStop System Installation and
Operation manual.
2. The heating cable circuit integrity shall be tested using a 2500 Vdc megohmmeter at the
following intervals below. Minimum acceptable insulation resistance shall be 1000
megohms or greater.
a. Before installing the heating cable
b. After heating cable has been installed on roof
c. After installing connection kits
d. Prior to initial start-up (commissioning)
e. As part of the regular system maintenance
3. The technician shall verify that the controller parameters are set to the application
requirements.
4. The technician shall verify that the ACS-30 and ProtoNode device server (if applicable)
are configured correctly with the BMS.
5. All commissioning results will be recorded and presented to the owner.
C. Non-Conforming Work
1. Any heat tracing circuit which fails the any of the above test must be corrected prior to
commissioning or startup of the system.
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D. Retain the services of nVent RAYCHEM Management to provide factory design build and
inspection services to prepare submittals for complete design layouts, wiring diagrams,
installation details for all heat trace equipment including heating cable, connection kits,
controllers and sensors. nVent shall supply 11”x17” isometric drawings for every circuit for a
complete heat tracing system.
E. Provide factory inspection report as part of a complete manufacturer approved installation that
is compliant to Code.
F. Start-up – Start-up of system shall be performed by factory technician or factory
representative per the owner’s requirements.
3.5. SYSTEM STARTUP
1. Provide a factory-certified technician or manufacturer’s representative for startup and
commissioning of the heat tracing system and controller.
2. Coordinate all controller settings with engineer prior to programming the controller.
3. Provide commissioning report in submittals package to owner.
3.6. MAINTENANCE
A. Maintenance Service
1. Comply with manufacturer’s recommendations in IceStop System Installation and
Operation Manual.
END OF SECTION
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07 71 43 - 1
Product Guide Specification
SECTION 07 71 43
ROOF SNOW AND ICE MELT SYSTEM
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Roof snow and ice melt system.
1.2 RELATED REQUIREMENTS
A. Section 07 62 00 – Sheet Metal Flashing and Trim.
B. Section 07 72 00 – Roof Accessories.
1.3 REFERENCE STANDARDS
A. NFPA 70 – National Electrical Code (NEC).
1.4 SUBMITTALS
A. Comply with Division 01.
B. Product Data: Submit manufacturer’s product data, including installation instructions.
C. Samples: Submit manufacturer’s samples of each standard color of metal coating.
D. Manufacturer’s Certification: Submit manufacturer’s certification that materials comply with specified
requirements and are suitable for intended application.
E. Operation and Maintenance Data: Submit manufacturer’s operation and maintenance instructions.
F. Warranty Documentation: Submit manufacturer’s standard warranty.
1.5 QUALITY ASSURANCE
A. Manufacturer’s Qualifications: Manufacturer regularly engaged, for past 5 years, in the manufacturing of
roof snow and ice melt systems of similar type to that specified.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Delivery Requirements: Deliver materials to site in manufacturer’s original, unopened containers and
packaging, with labels clearly identifying product name and manufacturer.
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B. Storage and Handling Requirements:
1. Store and handle materials in accordance with manufacturer’s instructions.
2. Keep materials in manufacturer’s original, unopened containers and packaging until installation.
3. Store materials in clean, dry area indoors.
4. Do not store materials directly on floor.
5. Protect materials and finish during storage, handling, and installation to prevent damage.
1.7 WARRANTY
A. Warranty Period: 10-year limited warranty against heat-trace cable failures and manufacturing defects.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Manufacturer: HotEdge, LLC, 700 N. Colorado Blvd., Suite 607, Denver, Colorado 80206. Toll Free
800-411-3296. Fax 303-568-8625. www.hotedge.com. support@hotedge.com.
B. Substitutions: None
C. Single Source: Provide materials from single manufacturer.
2.2 ROOF SNOW AND ICE MELT SYSTEM
A. Roof Snow and Ice Melt System: “HotShingle PRO”.
1. Description:
a. One-piece, roof-edge ice melt system designed to be installed before shingles.
b. Three-sided angulated raceway holds single heat-trace cable or 2 heat-trace cables as shown
on Drawings for in place for direct-heat transfer.
c. Does not penetrate roof deck.
2. UL Listed: Roof snow and ice melt system, including metal panels.
3. Material:
a. Steel: 24 gauge, galvanized.
1) Finish: Kynar 500.
2) Color: Match edge metal
4. Open Raceway:
a. Compliance: NFPA 70, Article 426.
b. Provides access for insertion, inspection, and replacement of heat-trace cable.
5. Heat-Trace Cable:
a. Commercial-grade, 10-W-per-foot, self-regulating, deicing heat cable for roof and gutter
deicing.
b. UL Listed.
c. Protected from UV light and snow/ice shifts and slides.
6. Electrical Requirements:
a. Voltage: 208-277 V AC
b. Ground-Fault Circuit Protection: 30 mA; NFPA 70, Article 426.28.
7. Accessories: Commercial-grade polyurethane adhesive.
B. Roof Snow and Ice Melt System: “HotValley”.
1. Description:
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a. One-piece, roof ice melt system designed to create wide melt path along roof valleys for
snow melt water to prevent ice dam formations.
b. Three-sided angulated raceway holds 1 heat-trace for direct-heat transfer to prevent ice build-
up along roof valleys.
c. Use in combination with roof edge ice melt system, so snow melt water is not able to refreeze
on roof edges.
d. Does not penetrate roof deck.
2. UL Listed: Roof snow and ice melt system, including metal panels.
3. Material:
a. Steel: 24 gauge, galvanized.
1) Finish: Kynar 500.
2) Color: Match edge metal
4. Open Raceway:
a. Compliance: NFPA 70, Article 426.
b. Provides access for insertion, inspection, and replacement of heat-trace cable.
5. Heat-Trace Cable:
a. Commercial-grade, 10-W-per-foot, self-regulating, deicing heat cable for roof and gutter
deicing.
b. UL Listed.
c. Protected from UV light and snow/ice shifts and slides.
6. Electrical Requirements:
a. Voltage: 120 V AC
b. Ground-Fault Circuit Protection: 30 mA; NFPA 70, Article 426.28.
7. Accessories: Commercial-grade polyurethane adhesive.
a. Provides access for insertion, inspection, and replacement of heat-trace cable.
8. Heat-Trace Cable:
a. Commercial-grade, 10-W-per-foot, self-regulating, deicing heat cable for roof and
gutter deicing.
b. Protected from UV light and snow/ice shifts and slides.
9. Electrical Requirements:
PART 3 EXECUTION
3.1 EXAMINATION
A. Examine roof areas to receive roof snow and ice melt system.
B. Notify Architect of conditions that would adversely affect installation or subsequent use.
C. Do not begin installation until unacceptable conditions are corrected.
3.2 INSTALLATION
A. Install roof snow and ice melt system in accordance with manufacturer’s instructions at locations
indicated on the Drawings.
B. Install roof snow and ice melt system in accordance with NFPA 70.
C. Install roof snow and ice melt system to prevent icicles and ice dams from forming along roof perimeter,
roof valleys, and other problematic roof areas.
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D. Do not penetrate roof deck with installation of roof snow and ice melt systems.
E. Connect heat-trace cables to electrical power as specified in Division 26 electrical section.
3.3 FIELD QUALITY CONTROL
A. Perform field testing and start-up procedures of roof snow and ice melt system in accordance with
manufacturer’s instructions after completion of installation.
1. Submit results of field testing to Architect and manufacturer.
3.4 ADJUSTING
A. Repair minor damages to finish in accordance with manufacturer’s instructions and as approved by
Architect.
B. Remove and replace with new material, damaged components that cannot be successfully repaired, as
determined by Architect.
3.5 CLOSEOUT ACTIVITIES
A. Demonstration:
1. Demonstrate to Owner that roof snow and ice melt system functions properly.
2. Perform demonstration at final system inspection by factory-trained and certified representative of
manufacturer.
B. Instruction and Training:
1. Provide instruction and training of Owner’s personnel in the operation and maintenance of roof
snow and ice melt system.
2. Provide instruction and training by factory-trained and certified representative of manufacturer.
3.6 PROTECTION
A. Protect installed roof snow and ice melt system to ensure that, except for normal weathering, system will
be without damage or deterioration at time of Substantial Completion.
END OF SECTION
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January 18, 2023 Roofing Replacement Project
SECTION 07 72 00
ROOF ACCESSORIES
PART 1 GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 1-Specification sections, apply to work of this section.
1.2 DESCRIPTION
A. Snow Fence
B. Snow Guards
C. Work Included: Work consists of furnishing all labor, materials and equipment necessary to
effectively install new pre-manufactured utility supports and to seal dissimilar materials at
critical junctions, but not necessarily limited to the following:
D. Related Work Specified Elsewhere
1. Preparation for Reroofing: Section 07 01 50.19
2. Metal Roof Panels, Standing Seam: Section 07 41 13.16
1.3 QUALITY CONTROL
A. Requirements of Regulatory Agencies: The Work under this section shall be subject to all
applicable provisions of the state and local building and safety codes.
B. Qualifications
1. Prior to the Notice of Award, the Contractor shall submit evidence that his existing
company has five (5) years continuous successful experience in applyi ng specified
material(s) and is currently an approved applicator for the specific material
manufacturer(s).
C. Reference Standards: Except as modified by the Drawings and Specifications, the following
documents or applicable portions thereof, govern the work.
1. Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA)
“Architectural Sheet Metal Manual - Fourth Edition.”
2. National Roofing Contractors Association (NRCA) “Roofing and Waterproofing Manual-
Fifth Edition.”
1.4 SUBMITTALS
A. Required Prior to Commencement of Work
1. Manufacturer’s literature, Material Safety Data Sheets and application instructions. All
submittals shall be made in triplicate. When submitting manufacturer’s literature, highlight
all items pertaining to this project.
2. Shop drawing of new roof accessory.
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CMW No. 2021.0022 Water Place Housing
January 18, 2023 Roofing Replacement Project
B. Required After Completion of Work
1. Contractor’s Warranty per Section 00 70 00.
1.5 PRODUCT DELIVERY AND STORAGE
A. Delivery of Materials: Deliver material to jobsite in sealed, undamaged containers. Identify each
container with material name, date of manufacturer, and lot number.
1.6 JOB CONDITIONS
A. All dimensions and existing details shall be field-verified by Contractor prior to bidding and
acquisition or installation of materials. Contractor shall notify the Consultant of any existing
condition found to be different than that indicated in the Contract Documents. Consultant shall
review the situation and inform Contractor of necessary changes, if any.
B. Install materials in strict accordance with all safety and weather conditions required by
manufacturer, product literature, Material Safety Data Sheets, or of local, state, federal rules and
regulations, and standard practice.
1.7 WORK SEQUENCE
A. Installation of new roof specialties and accessories shall be coordinated with roof removal
operations defined in Section 02 41 00 - Selective Demolition.
1.8 CHANGES IN THE WORK
A. During reroofing work, the Contractor may encounter existing conditions which are not now
known or are at variance with the Drawings or Specifications (discovery). Such conditions may
interfere with reroofing work and may consist of damage or deterioration to the deck or
surrounding materials or components which could jeopardize the integrity of the new roof.
The Contractor shall notify the Consultant of all discoveries he believes may interfere with
proper execution of the work or jeopardize the integrity of the new roof prior to proceeding
with work related to such discoveries.
B. In the event of discrepancies within the Drawings, within the Specifications, or between the
Drawings and Specifications, the more stringent of the two items shown shall be considered to
be shown or specified at all locations where the discrepancies occur. The Consultant shall be
notified of such discrepancies.
C. When a substitute or alternate is requested by the Contractor, and such substitute or alternate is
accepted by the Consultant, the Contractor shall bear all additional costs which may arise
directly or indirectly from the use of the substitute or alternate.
1.9 WARRANTY
A. Contractor’s Warranty: (by Contractor to Owner). Applies to all installed roof specialties and
accessories (refer to Section 00 70 00).
04/17/2023
CMW No. 2021.0022 Water Place Housing
January 18, 2023 Roofing Replacement Project
PART 2 PRODUCTS
2.1 MATERIALS
A. Snow Guards
1. Rocky Mountain Snow Guards – S-5 Blizzard II – Mini Standing Seam Two-Pipe Snow
Fence or Consultant approved equal.
a. Manufactured approved attachment hardware.
PART 3 EXECUTION
3.1 PREPARATION OF SUBSTRATE
A. Examine the surface condition of the substrate under which Snow Guard is to be installed. Do
not proceed with the new installation until unsatisfactory conditions have been corrected in a
manner approved by the Architect/Engineer/Consultant.
B. Clean the substrate of obstructions and substances detrimental to the work.
C. Proceeding with the work shall signify the Contractor’s acceptance of the substrate being used
under supports.
3.2 SNOW GUARD INSTALLATION
A. Install snow guard in accordance with snow guard manufacturer’s written installation
instructions.
B. Install snow guards at locations determined by consultant.
1. Building 1, Unit 1, rear of building, above patio area. Install above exterior bearing wall.
2. Building 3, Unit 5, rear of building, above patio area. Install above exterior bearing wall.
3. Building 4, Units 7 & 9, rear of building, above patio areas. Install above exterior bearing
wall.
4. Building 8, Unit 17, rear of building, above patio area. Install above exterior bearing wall.
3.3 CLEANUP
A. Remove trash, debris, and equipment from the jobsite.
B. Repair damage and remove stains caused by the Work.
END OF SECTION
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