HomeMy WebLinkAboutresolution.council.038-09RESOLUTION # 34
(Series of 2009)
A RESOLUTION APPROVING A CONTRACT BETWEEN THE CITY OF ASPEN, COLORADO, AND
CHOPU CONSTRUCTION, SETTING FORTH THE TERMS AND CONDITIONS REGARDING THE 2009
AFFORDABLE HOUSING ROOF REPAIR PROJECT AND AUTHORIZING THE CITY MANAGER TO
EXECUTE SAID CONTRACT
WHEREAS, there has been submitted to the City Council a contract between the City of
Aspen, Colorado, and Chopu Construction, a copy of which contract is annexed hereto and
made a part thereof.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF ASPEN,
COLORADO:
Section 1
That the City Council of the City of Aspen hereby approves that contract between the
City of Aspen, Colorado, and Chopu Construction, regarding 2009 Affordable Housing Roof
Repair Project, a copy of which is annexed hereto and incorporated herein, and does hereby
authorize the City Manager of the City of Aspen to execute said contract on behalf of the City
of Aspen.
Dated:
Michael C. Ireland, Mayor
I, Kathryn S. Koch, duly appointed and acting City Clerk do certify that the foregoing is a
true and accurate copy of that resolution adopted by the City Council of the City of Aspen,
Colorado, at a meeting held June 22 " 2009
Kat n S. Koch, City Clerk
PROCUREMENT CONTRACT ROUTING SLIP AND CHECK LIST Ou c l /
Instructions This form should be completed at each step of the procurement process and should follow each request for review
or approval. Contracts under $5,000 require only Department Head approval. Contracts over $5,000 require City Manager
approval. They do not require competitive bids but require documentation of source selection process. Contracts over $10,000
require City Attorney and City Manager approval. Competitive bidding process is required. Contracts over $25,000 require City
Council approval.
Procurement Description: 20069 Affordable Housing Roof Repair Project Project #: 2009 -045
Budget estimate: $133,000 �r
Is proposed expenditure approved in the Department's budget? ^ Yes No
Explain process for vendor selection: ITB
Dept. Head approval of proposal: _- f�i:a�� Finance Review: _
City Manager Approval if Sole Source:
Competitive Quotes:
(attach)
ContractorNendor Selected:
Dept. Head approval:
City Attorney review:
contract documents to
City Manager Approval:
and to Vendor /Contractor
RFP or ITB Completed: ao a4 f Eng. Dept. Review: !� h %A - ph \�
RFP or ITB Reviewed by City Attomey:
I' Advertisement 2n Advertisement (Attach Advertisement)
Bid Opening: 12 1-!, IL&
ContractorNendor Selected: �� `YH r CanliE ,� M,
Dept. Head approval:
- 11,011 Award letter sent: � 4
-1,4 3 signed contracts returned by vendor /contractor.
Performance and Payment Bonds received
Certificate of insurance received
O JA Finance Department Review:
Finance Department Review:
City Attorney Review
City Council Approval
City Manager Approval
Notice to Proceed
Instructions for Procurement Contract Routin2 Slip and Check List
All City contracts must be processed according to the procedures established by the Procurement Code. See Chapter 3 of the Municipal Code.
This Routing Slip and Check List should follow any contract documents during the approval or referral process.
_Contracts Under $5,000
1. Ensure that expenditure is in Dept. Budget.
2. Obtain Dept. Head approval.
3. Described selection process for file.
Contracts Between $5,000 and $10,000
1. Follow steps for Contracts under $5,000, above.
2. Obtain City Attorney review.
3. Obtain City Manager approval.
Contracts Between $10.000 and $25,000
1. Competitive bidding process must be followed.
2. Call City Attorney's Office at 5055 and obtain procurement N.
3. Prepare Request for Proposal (RFP) or Invitation to Bid (ITB) packet with all Contract Documents.
4. If it is a construction project, request Engineering Dept. review of scope of work and specifications.
5. Obtain City Attorney review.
6. Advertise and send out RFP's or ITB's. (Two consecutive weeks in newspaper with at least one week
between last ad and bid opening.)
7. Document selection process for vendor /contractor following bid opening.
8. Obtain Dept. Head approval.
9. Send award letter with request for 3 signed copies of contract, performance and payment bonds (if
applicable), and certificates of insurance.
10. Obtain Finance Dept. review.
it. Obtain City Manager's approval.
12. Send Notice to Proceed with one original copy of contract documents.
Contracts Over $25,000
1. Follow steps 1 thm 10 for contracts between $10,000 and $25,000.
2. Prepare cover memo and resolution for City Council approval.
3. Schedule resolution for City Council with City Clerk.
4. Obtain City Attorney review.
5. Obtain City Manager approval.
6. Send cover memo, resolution and contract to City Clerk for Council's packet.
7. Attend City Council meeting.
8. Send Notice to Proceed with one original copy of contract documents.
One original copy of all contracts over $10,000 should end up in City Clerk's Office. Return one original to vendor /contractor and
retain one original in department.
NOTES:
6
CONTRACT FOR CONSTRUCTION S m C "'I OFA
THIS AGREEMENT, made and entered into on June 12, 2009 , by and between the CITY OF
ASPEN, Colorado, hereinafter called the "City ", and Chopu Construction , hereinafter called the
"Contractor ".
WHEREAS, the City has caused to be prepared, in accordance with the law, specifications and
other Contract Documents for the work herein described, and has approved and adopted said documents,
and has caused to be published, in the manner and for the time required by law, an advertisement, for the
project: 2009 Affordable Housing Roof Repair Project , and,
WHEREAS, the Contractor, in response to such advertisement, or in response to direct invitation,
has submitted to the City, in the manner and at the time specified, a sealed Bid in accordance with the
terms of said Invitation for Bids; and,
WHEREAS, the City, in the manner prescribed by law, has publicly opened, examined, 4nd
canvassed the Bids submitted in response to the published Invitation for Bids therefore, and as a result of
such canvass has determined and declared the Contractor to be the lowest responsible and responsive
bidder for the said Work and has duly awarded to the Contractor a Contract for Construction therefore, for
the sum or sums set forth herein;
NOW, THEREFORE, in consideration of the payments and Contract for Construction herein
mentioned:
The Contractor shall commence and complete the construction of the Work as fully described in
the Contract Documents.
2. The Contractor shall furnish all of the materials, supplies, tools, equipment, labor and other
services necessary for the construction and completion of the Work described herein.
3. The Contractor shall commence the work required by the Contract Documents within seven (7)
consecutive calendar days after the date of "Notice to Proceed" and will complete the same by the
date and time indicated in the Special Conditions unless the time is extended in accordance with
appropriate provisions in the Contract Documents.
4. The Contractor agrees to perform all of the Work described in the Contract Documents and
comply with the terms therein for a sum not to exceed One hundred twenty five thousand, five
hundred twelve and 00 /100 ($125,512.00 DOLLARS or as shown on the BID proposal.
5. The term "Contract Documents" means and includes the documents listed in the City of Aspen
General Conditions to Contracts for Construction (version GC97 -2) and in the Special Conditions.
The Contract Documents are included herein by this reference and made a part hereof as if fully set
forth here.
—cci
6. The City shall pay to the Contractor in the manner and at such time as set forth in the General
Conditions, unless modified by the Special Conditions, such amounts as required by the
Documents.
7. This Contract for Construction shall be binding upon all parties hereto and their respective heirs,
executors, administrators, successors, and assigns. Notwithstanding anything to the contrary
contained herein or in the Contract Documents, this Contract for Construction shall be subject to
the City of Aspen Procurement Code, Title 4 of the Municipal Code, including the approval
requirements of Section 4 -08 -040. This agreement shall not be binding upon the City unless duly
executed by the City Manager or the Mayor of the City of Aspen (or a duly authorized official in
his/her absence) following a resolution of the Council of the City of Aspen authorizing the Mayor
or City Manager (or a duly authorized official in his/her absence) to execute the same.
8. This agreement and all of the covenants hereof shall inure to the benefit of and be binding upon
the City and the Contractor respectively and their agents, representatives, employees. Successors,
assigns, and legal representatives. Neither the City nor the Contractor shall have the right to
assign, transfer or sublet his or her interest or obligations hereunder without the written consent of
the other party.
9. This agreement does not and shall not be deemed or construed to confer upon or grant to any third
party or parties, except to parties to whom the Contractor or the City may assign this Contract for -
Construction in accordance with the specific written consent, any rights to claim damages or to
bring suit, action or other proceeding against either the City or the Contractor because of any
breach hereof or because of any of the terms, covenants, agreements or conditions herein
contained.
10. No waiver of default by either party of any terms, covenants or conditions hereof to be performed,
kept and observed by the other party shall be construed, or operate as, a waiver of any subsequent
default of any of the terms, covenants or conditions herein contained, to be performed, kept and
observed by the other party.
11. The parties agree that this Contract for Construction was made in accordance with the laws of the
State of Colorado and shall be so construed. Venue is agreed to be kept exclusively in the courts
of Pitkin County, Colorado.
12. In the event that legal action is necessary to enforce any of the provisions of this Contract for
Construction, the prevailing party shall be entitled to its costs and reasonable attorney's fees.
13. This Contract for Construction was reviewed and accepted through the mutual efforts of the parties
hereto, and the parties agree that no construction shall be made or presumption shall arise for or
against either party based on any alleged unequal status of the parties in the negotiation, review or
drafting of this Contract for Construction.
14. The undersigned representative of the Contractor, as an inducement to the City to execute this
Contract for Construction, represents that he /she is an authorized representative of the Contractor
for the purposes of executing this Contract for Construction and that he /she has full and complete
authority to enter into this Contract for Construction for the terms and conditions specified herein.
CC7- 971.doc Page 2 "CC1
IN WITNESS WHEREOF, the parties agree hereto have executed this Contract for Construction on the
date first above written.
ATTE TED BY:
CITY OF SPEN, OLORADO r
By:
Title: 0k, ZQAMPL�/
RECOMMENDED FOR APPROVAL:
/C ng Department
ATTESTED BY:
APPROVED AS TO FORM:
By:
City ome
Note: Certification of incorporation shall be executed if Contractor is a Corporation. If a partnership, the
Contract shall be signed by a Principal and indicate title.
Page 3
CONTRACTOR:
CERTIFICATE OF INCORPORATION
(To be completed if Contractor is a Corporation)
STATE OF
COUNTY OF
On this day of
) SS.
20, before me appeared
me first duly sworn, did say that s/he is
to me personally known, who, being by
of
and that the seal affixed to said
instrument is the corporate seal of said corporation, and that said instrument was signed and sealed in
behalf of said corporation by authority of its board of directors, and said deponent acknowledged said
instrument to be the free act and deed of said corporation.
WITNESS MY HAND AND NOTARIAL SEAL the day and year in this certificate first above written.
Notary Public
Address
My commission expires:
4 "CC1
Certification and Supplemental Conditions to Contract for Services -
Conformance with &8- 17.5.101, et seg.
Purpose During the 2006 Colorado legislative session, the Legislature passed House Bill 06 -1343
that added a new article 17.5 to Title 8 of the Colorado Revised Statutes entitled "Illegal Aliens —
Public Contracts for Services." This new law prohibits all state agencies and political subdivisions,
including the City of Aspen, from knowingly employing or contracting with an illegal alien to
perform work under a contract, or to knowingly contract with a subcontractor who knowingly
employs or contracts with an illegal alien to perform work under the contract. The new law also
requires that all contracts for services include certain specific language as set forth in the statutes. This
Certification and Supplemental Conditions has been designed to comply with the requirements of this
new law.
Applicability. The certification and supplemental conditions set forth herein shall be required to be
executed by all persons having a public contract for services with the City of Aspen.
Definitions. The following terms are defined in the new law and by this reference are incorporated
herein and in any contract for services entered into with the City of Aspen.
"Basic Pilot Program" means the basic pilot employment verification program created in
Public Law 208, 104th Congress, as amended, and expanded in Public Law 156, 108th Congress, as
amended, that is administered by the United States Department of Homeland Security.
"Contractor" means a person having a public contract for services with the City of Aspen.
"Public Contract for Services" means any type of agreement, regardless of what the agreement
may be called, between the City of Aspen and a Contractor for the procurement of services. It
specifically means the contract or agreement referenced below.
"Services" means the furnishing of labor, time, or effort by a Contractor or a subcontractor not
involving the delivery of a specific end product other than reports that are merely incidental to the
required performance.
PURSUANT TO SECTION 8- 17.5 -101, C.R.S., et. seq.:
By signing this document, Contractor certifies and represents that at this time:
(i) Contractor does not knowingly employ or contract with an illegal alien; and
(ii) Contractor has participated or attempted to participate in the Basic Pilot Program in order to verify
that it does not employ illegal aliens.
The Public Contract for Services referenced below is hereby amended to include the following terms
and conditions:
1. Contractor shall not knowingly employ or contract with an illegal alien to perform work under
the Public Contract for Services.
2. Contractor shall not enter into a contract with a subcontractor that fails to certify to the
Contractor that the subcontractor shall not knowingly employ or contract with an illegal alien to
perform work under the Public Contract for Services.
3. Contractor has verified or has attempted to verify through participation in the Federal Basic
Pilot Program that Contractor does not employ any illegal aliens; and if Contractor has not been
accepted into the Federal Basic Pilot Program prior to entering into the Public Contract for Services,
Contractor shall forthwith apply to participate in the Federal Basic Pilot Program and shall in writing
verify such application within five (5) days of the date of the Public Contract. Contractor shall
continue to apply to participate in the Federal Basic Pilot Program and shall in writing verify same
every three (3) calendar months thereafter, until Contractor is accepted or the public contract for
services has been completed, whichever is earlier. The requirements of this section shall not be
required or effective if the Federal Basic Pilot Program is discontinued.
4. Contractor shall not use the Basic Pilot Program procedures to undertake pre - employment
screening of job applicants while the Public Contract for Services is being performed.
5. If Contractor obtains actual knowledge that a subcontractor performing work under the Public
Contract for Services knowingly employs or contracts with an illegal alien, Contractor shall:
(i) Notify such subcontractor and the City of Aspen within three days that Contractor has
actual knowledge that the subcontractor is employing or contracting with an illegal alien; and
(ii) Terminate the subcontract with the subcontractor if within three days of receiving the
notice required pursuant to this section the subcontractor does not cease employing or contracting
with the illegal alien; except that Contractor shall not terminate the Public Contract for Services with
the subcontractor if during such three days the subcontractor provides information to establish that the
subcontractor has not knowingly employed or contracted with an illegal alien.
6. Contractor shall comply with any reasonable request by the Colorado Department of Labor
and Employment made in the course of an investigation that the Colorado Department of Labor and
Employment undertakes or is undertaking pursuant to the authority established in Subsection 8 -17.5-
102 (5), C.R.S.
7. If Contractor violates any provision of the Public Contract for Services pertaining to the
duties imposed by Subsection 8- 17.5 -102, C.R.S. the City of Aspen may terminate the Public Contract
for Services. If the Public Contract for Services is so terminated, Contractor shall be liable for actual
and consequential damages to the City of Aspen arising out of Contractor's violation of Subsection 8-
17.5 -102, C.R.S.
Public Contract for Services:
Cor
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Titl,
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JPW- saved: 3/5/ 2008 - 867 -M:\ city \cityatty \contract \forms \certification - hb- 06- 1343.doe
BID PROPOSAL FORM
Project No. 2009 -045
BID DATE: 2:00pm, June 15, 2009
PROJECT: 2009 Affordable Housing Roof Repair
CONTRACTOR'S PROPOSAL
TO: The Governing Body of the City of Aspen, Colorado
The undersigned responsible bidder declares and stipulates that this proposal is made in good faith,
without collusion or connection with any other person or persons bidding for the same work, and that it is
made in pursuance of and subject to all the terms and conditions of the advertisement for bid, the
invitation to bid and request for bid, all the requirements of the bid documents including the plans and
specifications for this bid, all of which have been read and examined prior to signature, The bidder
agrees to keep this bid open for Sixty (60) consecutive Calendar days from the date of bid opening.
The Contractor agrees that construction shall start immediately following a mandatory pre - construction
conference held by the Engineering Department, which also constitutes the Notice to Proceed.
Submission of this proposal will be taken by the City of Aspen as a binding covenant that the Contractor
will finish construction within the time specified in the Special Conditions of this contract document.
The City of Aspen reserves the right to make the award on the basis of the bid deemed most favorable to
the City, to waive any informalities or td reject any or all bids.
The City hall not pay the Contractor for defective work and/or for repairs or additional work required for
successful completion of the project. All work not specifically set forth as a pay item in the bid form
shall be considered a subsidiary obligation of the Contractor and all costs in connection therewith shall be
included in the prices bid for the various items of work. Prices shall include all costs in connection with
furnishing the proper and success completion of the work, including furnishing all materials, equipment
and tools, and performing all labor and supervision to fully complete the work to the City's satisfaction.
Poor quality and workmanship shall not be paid for by the City. Such work product must be removed
immediately and replaced properly at no cost to the City.
All quantities stipulated in the bid form at unit prices are approximate and are to be used only as a basis
for estimating the probable cost of work and for the purpose of comparing the bids submitted to the City.
The basis of payment shall be the actual amount of materials furnished and Work done. The Contractor
agrees
to make no claims for damages, anticipated profit, or otherwise on account of any differences between
the
amount of work actually performed and materials actually famished and the estimated amount of work.
13PI- 97I.doo "BPI , l Page 1
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Contractors Inlaafs
I hereby acknowledge receipt of ADDENDUM (s) numbered # I through
BtD ITF.MLIMMIPTION
Removat of existing roofing materials
Strengthening of existing roof truss flaming
Installation of new snow fences
Replacement of roofing, including new flashing
at snow fence penetrations
1410 Sq. Ft. at Type 1
900 Sq. Ft. at Type 2
520 Sq. Ft. at Type 3
UNIT
Um 211ANTITY pRi(:R
Sq. Ft. 2530 S
Lump Sum Per Drawings $_
Lin. Ft. 240
Sq. Ft.
2830
s
Installation of new concrete footers below Each
new roof areas XW WW Ph1O&�/LkNDHJ(pS
Installation of new wood columns and struts Each
below new roof areas
Installation of new roof framing and new roofing Sq. Ft.
180 Sq. Ft. at new columns
420 Sq. Ft. at exterior roofs, Typo 1
3
3
1800
TOTAL
$ CAP&O
$ 1L -G
$ 01 2 0$
$� 3 �
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Material testing Lump Sum 1 $_ $ 16CO .
A9DEn5'o�N - t TOTAL BID IN NUMBERSt $ 126, a a
F_ N.
MAY 2009 Annie Mitchell Housing BP-2
ContracuPs initials .
TrTAI,
i acknowledge that in submitting this bid it is understood that the right to reject any and all bids has been
reserved by the owner.
Authorized Officer:
Full name signature:
, Title: OLstJK
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Telephone number: ( , Iqg"IO% 6
Fax number: (`} ��a S I
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LIQUIDATED DAMAGES
for
FAILURE TO COMPLETE THE WORK ON TIME
The undersigned contractor declares his/her fall awareness of the content and terms of this contract and
affirms that the contractual time is the period mentioned in the contract Specifications plus the time
extension(s), if any, granted by the City of Aspen for successful completion of project. The undersigned
oontraotor further acknowledges he/she understands and agrees to liquidated damages to be deducted
from moneys due to him/her for any calendar day beyond the total time at the rate of $100.00 per
day. This amount and the total allowed time by the City shall not be negotiable under any conditions.
Attest: C�Ph) Co�t"J U-C�
Corporate Seal Va
STATE OF COLORADO )
SS.
COUNTY
Before me —1M 0A cf a notary public and for
County, Colorado personally appeared Ord l��i& &25-h known to
me personally to be the person(s) whose signature(s) in my presence this &0 day of
P te , A.D. 2002.
My commission expires:
(Seal)
ta.rn.e.
aP7- 971.doc
7
*BPI _ page
/ Contra ` actoe$ InIt"
AFFIDAVIT OF COMPLIANCE
PROTECT NUMBER. 2009-045
The undersigned contractor has read a copy of the Contract Documents including the construction plans,
for this project and understands and hereby affirms that he/she does not now, nor will he/she in the future,
violate the provisions of said Contract Documents, so long as he/she is under the Contract to the City of
Aspen for the performance of a Contract. The undersigned further acknowledges he/she understands and
agrees to all terms and conditions of the Aspen Municipal Code and its being part of the Contract with
the City of Aspen.
Attest: Clk)nCO W�- ((UWU-C-
Corporate Seal Av t� -
STATE OF COLORADO )
�y, - ) SS.
COUNTY L�h )
Before me
a notary public and
County, Colorado personally appeared / Aa"r£?"/
to me pers p #ly to be the person(s) whose signature(s) in my presence this
day of V
IZ ' A.D. 2009.
My commission expires:
()
Notary Public
aP1.071.doc 'BPI Page a
cwtractMs IRS
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/Z - Z 5 — 2.0 /f
DATE: June 12, 2009
TO: Garrett Mandich/Chopu Construction
FROM: Shaun Rourke, Project Manager
SUBJECT: 2009 Affordable Housing Roof Repair Project
Notice is given to Garrett Mandich/Chopu Construction for the 2009 Affordable Housing
Roof Repair Project that addendum number two is hereby issued and shall be considered
for contract purposes. This addendum shall be made part of the contract documents.
Addendum number two shall be acknowledged on the bid form provided in the contract
documents. Failure to acknowledge receipt of Addendum Number Two may be cause for
the rejection of the bid. The bid date shall remain unchanged.
The following changes are summarized for the Contractor and additional pages are
attached.
1. Revised Bid Form that includes a line item for General Conditions
ADDENDA AND MODIFICATIONS
2009 Affordable Housing Roof Repair Project
City of Aspen
130 S Galena St
Aspen, CO 81611
Addendum No.: 2
Addendum Date: June 12, 2009
The following revisions shall be incorporated into the CONTRACT DOCUMENTS, for the
above - referenced PROJECT:
A. Revised Bid Form
All other terms and conditions of the CONTRACT DOCUMENTS shall remain unchanged. BIDDER
must acknowledge receipt of this addendum in the space provided in the BID. Failure to acknowledge
receipt of an ADDENDUM may be cause for rejection of the BID.
[Type text]
s
Please acknowledge receipt of ADDENDUM(s) numbered #1 through #2 by placing your initials in the appropriate
location at the bottom right hand corner of the page.
ESTIMATED QUANTITY LIST
Bid Item Description Unit
Removal of existing roofing materials Sq Ft
Strengthening of existing roof
truss framing
Installation of new snow fences
Replacement of roofing,
including new flashing at snow
fence penetrations
Installation of new concrete
footers below new roof areas
Installation of new wood
columns and struts below new
roof areas
Installation of new roof framing
and new roofing
Material Testing
Lump Sum
Linear Ft
uantit
2830
Per Dwgs
240
Sq Ft
Each
3
Each
Sq Ft
Lump Sum
3
:I1
1
Total Cost
$
$ ! 3,
$ Ltgdo
$ 1 q qS) ' Go
$ 600
$
Unit Price
$
$
General Conditions Lump Sum 1 $
TOTAL BID IN NUMBERS:
TOTAL BID IN WORDS:
� lkJ1 ItD `CW&��`f �IU� [(ICX)SkIJt� t%W>�(dW'JP-2It>4 �k 4 ou
June 2009 Annie Mitchell Housing
60
Bidder's Initials
Date: July 14, 2009
To: Steve Barwick, City Manger
Thru: Scott Miller, Capital Asset Manager
Trish Aragon, P.E., City Engineer
From: Shaun Rourke, Project Manager
Subject: 2009 Affordable Housing Roof Repair Project — Change Order Approval
ISSUE
Attached for approval is Change Order Number Two for the 2009 Affordable Housing Roof
Repair Project.
RECOMMENDATION
City Manager approve Change Order Number Two which will increase the contract for the 2009
Affordable Housing Roof Repair Project. The budget for this contract is $205,512.00 including
$50,000.00 for the contingency and $30,000.00 for staff time. With the approval of this change
order the contract amount becomes $156,832.00.
The attached change order resulted from the need to enclose the new roof extensions in the same
manner as the existing construction with fascia and soffit to match. The additional work will
provide the facility with a weatherproof roof structure that will perform in the same manner as
the existing roof and provide the additional safety benefits for which this project was designed.
The fascia and soffit at the new roof extensions were not considered during the original design of
the roof repairs and none of the potential bidders raised the question during the bidding process.
This change order will allow the roof work to be completed in a professional manner and
maintain the aesthetic of the original design.
Funding
Annie Mitchell Housing Fund
Total
Budgeted Funding for Roof Repair Project
2009 Affordable Housing Roof Repair Contract
Staff Project Management
Contingency
Total
Expected Construction Expenditures
Roof Repair Project (Contract with Chopu Construction)
Staff Administration
Change Order #1
Change Order #2
Remaining Contingency
$505,961.00
$505,961.00
$125,512.00
$ 30,000.00
$ 50,000.00
$205,512.00
$125,512.00
$ 30,000.00
$ 0.00
$ 31,320.00
$ 18,680.00
Total $205,512.00
CITY OF ASPEN
CHANGE ORDER FORM
CHANGE ORDER NUMBER: 02
PROJECT NAME: 2009 Affordable Housing Roof Repair Proiect (2009 -045)
ACCOUNT NUMBER: 150.23.23120.82900
TO: Chopu Construction
234 East Hopkins Ave
Aspen CO, 81611
Contract Date: 6/22/09
PO NUMBER: 026014
Upon approval of this form by the City Manager or designee, you are directed to make the
following changes in this contract:
The original Contract Sum was ....................... ..............................$ 125,512.00
Net change by previous Change Orders ............. ............................... $ 0.00
The Contract Sum prior to this Change was ......... ..............................$ 125,512.00
The Contract Sum will be increased
By this Change Order ........................... ..............................$ 31,320.00
The new Contract Sum, including this Change Order,
Willbe .......................................... ..............................$ 156,832.00
This change may affect the completion of the contract work by up to 10 working days.
SUBMITTED BY
Shaun Rourke
ENGINEERING
CITY of ASPEN
ADDRESS
130 S. Galena St.
Aspen
CO 81611
BY:�
DATE: 1 /% G I C
ACCEPTED BY:
Garrett Mandich
Chopu Construction
ADDRESS
234 East Hopkins Ave
REVIEWED BY:
Mrs. Trish Aragon, P.E.
ENGINEERING
CITY of ASPEN
ADDRESS
130 S. Galena St.
Aspen
CO 81611
BY: _
DATE: VT Q
APPROVED BY:
Mr. Steve Barwick
CITY MGR
CITY of ASPEN
ADDRESS
130 S. Galena St.
Aspen
CO 81611 o
BY:
DATE: �' L2
CHOPU CONSTRUCTION, LLC
Chopu Construction
234 E Hopkins Avenue
Aspen, CO 81611
(970) 948 -0017
garret[ @chopuconstruction.com
` IIWA
I Name / Address I
City of Aspen
130 S Galena St
Aspen, CO 81611
7/2/2009
a (-We$
Roof Framing labor -3 carpenters @$45/hr & 1 lead carpenter @$55/hr- additional staging,
90
190.00
soffit & fascia installation 2.xs, 1 *..,,.
Roof - reroute gutter downspouts @ 3 locations + cut back & cap existing gutter @ 3 other
2,000.00
locations identified on drawings
Roofing labor - removal of existing snowguards & reattachment and sealant
100
50.00
Painting labor & paint supplies for new soffit and fascia material at new roof locations
1,500.00
38 sheets of 4x8 hardie board 3/8" + seven 2x10 fascia boards at 20' long each
1,468.10
Additional supervision & project management
20
70.00
Profit & Overhead 10
2,846.80
Total
Signature
17,100.00
2,000.00
5,000.00
1,500.00
1,468.10
1,400.00
2,846.80
$31,314.90
C (•. fe g . 0 31 - cc)
CITY OF ASPEN
CHANGE ORDER F ORM
CHANGE ORDER NUMBER: 05
PROJECT NAME: 2009 Affordable Housing Roof Repair Project (2009 -045)
ACCOUNT NUMBER: 150.23.23120.82900
TO: Chopu Construction
234 East Hopkins Ave
Aspen CO, 81611
Contract Date: 6/22/09
PO NUMBER: 026014
Upon approval of this form by the City Manager or designee, you are directed to make the following changes in
this contract:
The original Contract Sum was ....................... ..............................$ 125,512.00
Net change by previous Change Orders .............. ..............................$ 141,820.00
The Contract Sum prior to this Change was ......... ..............................$ 267,500.00
The Contract Sum will be increased
Bythis Change Order ........................... ..............................$ 30,000.00
The new Contract Sum, including this Change Order,
Will .......................................... ..............................$ 297,500.00
This change may affect the completion of the contract work by up to 10 working days.
SUBMITTED BY:
Shaun Rourke
ENG Dept
City of Aspen
ADDRESS
130 S. Galena St.
Aspen
CO 81611
ACCEPTED BY:
Garrett Mandich
Owner
Chopu Construction
REVIEWED BY:
Trish Aragon, P.E.
ENG Dept
City of Aspen
REVIEWED BY: APPROVED BY:
Mr Steve Bossart Mr. Steve Barwick
ASSET Dept CITY MGR
City of Aspen City of Aspen
BY: ���
DATE: 21 Rio 10
ADDRESS
234 East Hopkins Ave
Aspen CO, 81611
ADDRESS
130 S. Galena St.
Aspen
CO 81611
ADDRESS ADDRESS
130 S. Galena St. 130 S. Galena St.
Aspen Aspen
CO 81611 CO 81611
�'rrr�
DATE: k Zole DATE: f� ( �/'p
Date: Aug 30, 2010
To: Steve Barwick, City Manger
Thru: Steve Bossart, PM/Asset Dept
Scott Miller, Capital Asset Manager
Trish Aragon, P.E., City Engineer
From: Shaun Rourke, Project Manager
Subject: 2009 Affordable Housing Roof Repair Project — Change Order Approval
ISSUE
Attached for approval is Change Order Number Five for the 2009 Affordable Housing Roof
Repair Project.
RECOMMENDATION
Staffs recommends that the City Manager approve Change Order Number Five which will
increase the contract for the 2009 Affordable Housing Roof Repair Project. The budget for this
project is $267,500.00 including: $125,512.00 for the base contract with Chopu Construction,
$141,820.00 for previously approved change orders and $30,000 for work associated with Change
Order #5. With the approval of this change order, the contract with Chopu Construction becomes
$297,500.00.
DISCUSSION
The attached change order resulted from roof leaks that appeared during the winter of
2009/2010. This change order is proposed to address leaks at Bldg C and Bldg A of the Annie
Mitchell housing complex.
The City's consulting engineer for the Annie Mitchell Snow Fence project, Wiss, Janney, Elstner
was employed to investigate the source of the leaks and develop recommendations to address the
problems.
The Bldg C leak is indirectly related to the snow fence installation project. Last winter saw an
unusual amount of freeze /thaw cycles. That coupled with the snow fence acting, as it was
designed, to hold the snow on the roof resulted in an ice dam building up at the low edge of the
roof. As snow from above melted, it ran down the roof until the ice dam prevented the liquid
from shedding off the roof and caused the water to back up into the building.
In order to properly address this leak, it has been recommended to remove the existing metal
roofing panels and sheathing, determine source of leak and address as needed. The sheathing
will then be replaced, new ice and water shield roofing membrane installed along with
appropriate flashing around an existing skylight and at the low edge of the roof. The metal
panels will then be reinstalled and heat tape will be placed at the roof edge, around the sky light
and into the gutters so that liquid water can drain from the roof.
The Bldg A leak has been an ongoing issue since the project was completed. It has been traced
back to insufficient weatherproofing above the unit that has been affected. According to the
consultant's investigation, proper flashing between the green roof plaza and the vertical elements
of the structure were never installed.
In order to address this issue, part of the concrete slab at the green roof will need to be removed
along with some of the siding at the vertical surfaces of the building. Appropriate flashing ,
waterproofing membrane, drainage mat and sealant will then be installed per the consultant's
recommendations. Upon passing a flood test the concrete, metal decking, siding, landscaping
and any other elements disrupted by this work will be replaced.
Budgeted Funding for Roof Repair Project
2009 Affordable Housing Roof Repair Contract w Contingency $175,512.00
Staff Project Management $ 30,000.00
Total $205,512.00
Expected Construction Expenditures
Roof Repair Project (Contract with Chopu Construction)
$125,512.00
Staff Administration
$ 32,500.00
Change Order #1
$ 0.00
Change Order #2
$ 31
Change Order #3
$ 31,000.00
Change Order #4
$ 79,500.00
Change Order #5
$ 30.000.00
Total $329,832.00
CHOPU CONSTRUCTION, LLC
Chopu Construction
234 E Hopkins Avenue
Aspen, CO 81611
(970) 948 -0017
garrett @cbopuconstmction.com
I Name /Address I
City of Aspen
130 S Galena St
Aspen, CO 81611
8/6/2010
Concrete slab around drain, pump truck to get it up there, labor & materials (assuming
engineer can sign off on a mix design that works for strength characteristics he /she is looking
for and also can run through a 2" hose line to make installation up on the roof easier). - see
attached estimate from Concrete subcontractor
Roofing - Flashing & waterproofing materials - see attached estimate from roofer
Roofing - Flashing & waterproofing labor - see attached estimate from roofer
Rental Equipment - demo air hammer, demo saw & blade
Materials - cleaning supplies,3 sheets of 4x8 1/4" SM Hardi Soffit for siding material, special
blade for cutting hardi soffit board, nails, paint cans, brash, rollers, 8 sq ft of sod to match
existing,
labor - cleanup 8 hours, demo work 8 hours, hauling demo material off site 8 hours,
removing, cutting, and residing siding material 6 hours, repainting where siding is removed &
painting slightly larger area if gets scratched or damaged during concrete removal 4 hours,
flood test labor 2 hours, landscaping labor 2 hours, demo /remove /cut back existing flashing &
waterproofing 3 hours
waste removal
Supervision labor
Concrete testing
Temporary restrooms $0 if doing both jobs at the same time and can combine with Unit 620
Profit & Overhead 10%
General Liability Insurance 1.5%
Signature
2,508.001 2,508.00
411 50.001 2,050.00
1,754.501
1,754.50
54
75.001
4,050.00
200.00
200.00
750.00
750.00
411 50.001 2,050.00
Total $14,461.00
500.00
500.00
12
70.00
840A0
300.001
300.00
0.00
0.00
1,295.00
1,295.00
213.50
213.50
Total $14,461.00
WJE ) i T I
ARCHITECTS Wisa, Janney, Wadsworth B r Associates, Inc.
JL gItCHI1F7S 3609 South Wadsworth Boulevard, Suite 400
W
MATERIALS SCIENTISTS Lakewood, Colorado 80235
303.914.4300 tel 1 303.914.3000 fax
www.wje.conn
Via Email: Shaun.Rourke @ci.aspen.co.us
July 22, 2010
Mr. Shaun Rourke
City of Aspen
130 S. Galena Street
Aspen, Colorado 81611
Re: Annie Mitchell
Unit 103 Leak
Aspen, Colorado
WJE No. 2010.1839
Dear Mr. Rourke:
Per your request, Wiss, Janney, Elstner Associates Inc. (WJE) visited the Annie Mitchell condominium
complex located in Aspen, Colorado. The purpose of this visit was to perform an investigation of the
plaza waterproofing above Unit 103 to determine the source of the reported leak. Based on our findings
and at your request, we have outlined a recommended scope of work for repair of this issue.
OVERVIEW
The multi -unit complex, comprised of condominium buildings and a plaza area, is mostly constructed
over a parking structure. The waterproofing is a self - adhering membrane adhered to the substrate.
Reportedly, water was observed at the ceiling of the Unit 103 hallway between the bedroom and
bathroom during rains. This unit is located at the lower level at the north end of the complex.
OBSERVATIONS
During our visit, no visible signs of leakage or stains were observed on the ceiling (Figure 1). However,
we did observe that a fire sprinkler head in the bedroom was dripping (Figure 2).
Water testing was performed on the lower walkway (directly above the unit) for a total duration of
approximately 40 minutes focusing mostly on the walls and parking garage door threshold (Figure 3).
The west wall of the walkway is the exterior wall of the unit above 103. This wall is situated over the
hallway in Unit 103. No visible signs of water were observed inside the unit below following the water
testing.
Headquarters & Laboratories - Northbrook, Illinois
Atlanta I Austin I Boston I Chicago I Cleveland I Dallas I Denver I Detroit I Honolulu I Houston
Los Angeles I Minneapolis I New Haven I New York I Pdnceton I San Francisco I Seattle I Washington, DC
W) E I ENGINEERS
ARCHITECTS
MATERIALS SCIENTISTS
FIGURES
arrow.
Mr. Shaun Rourke
City of Aspen
July 22, 2010
Page 5
Figure 1. View of hallway ceiling at Unit 103.
Figure 2. Sprinkler head in Unit 103 bedroom. Water indicated by
i T' ENGINEERS Mr. Shaun Rourke
1L , ARCHITECTS City of Aspen
MATERIALS SCIENTISTS July 22, 2010
Page e 6 6
Figure 3. Water testing deck directly above Unit 103.
Figure 4. View of upper level walkway and plaza.
W J T AR C E Mr. Shaun Rourke
■ ■ AACHIT7TEC TS City of Aspen
MATERIAES SCIENTISTS July 22, 2010
Page 7
Figure 5. Wood beam on ledge at top of wall.
Figure 6. NoJlashing at walkway ledger. .
WJE ENGINEERS
ARCHITECTS
MATERIALS SCIENTISTS
topping interface.
Mr. Shaun Rourke
City of Aspen
July 22, 2010
Page 8
Figure 7. No flashing at walkway ledger. View of outside corner.
Figure 8. Missing flashing at top of walkway ledger at concrete
WJ E ENGINEERS Mr. Shaun Rourke
ARCHITECTS City of Aspen
MATERIA1S SCIENTISTS July 22, 2010
Page e 2 2
Further investigation was performed at the walkway two levels above Unit 103. We observed the
following conditions at this level:
• The perforated metal plank walkway transitions to a plaza area, consisting of sidewalks, patios, and
landscaped areas, located over the top of the parking garage (Figure 4). A wall with an entry door to
the parking garage is located below this transition with a ledge at the top that supports wood beams
for the metal plank walkway (Figure 5).
• When some of the metal planks were removed along the west wall of the walkway, the exterior
sheathing was visible behind and above the ledger board (Figures 6 - 7). Typically, a metal flashing
is installed above the ledger that extends up behind the siding and weather resistive barrier to direct
water over the ledger. With the flashing missing, water can run down behind the ledger, behind the
weather resistive barrier and into the unit two levels below.
• The end of the walkway ledger meets the edge of the topping slab (Figure 8). A sheet metal flashing
was installed over the ledge at the top of the wall and extends up over part of the end of the concrete
topping slab (Figure 9). Failed sealant was observed at the top of this flashing.
• When the vertical flange of the sheet metal flashing was pulled back, the waterproofing membrane
between the structural slab and topping slab was visible (Figure 10). Waterproofing membrane
installed at the ledge extended up to the horizontal waterproofing between the structural and topping
slabs. The top edge of the ledge waterproofing membrane was open at the top in several locations
allowing water coming off the surface and from below the topping slab to run behind this
waterproofing and into the wall.
• At the request of WJE, the contractor removed a portion of the existing topping slab to expose the
existing waterproofing membrane. The waterproofing membrane was identified as Grace Bituthene.
A drainage mat was also observed over the waterproofing membrane.
RECOMMENDATIONS I SCOPE OF REPAIR
Based on our observations, the installation of the flashings and waterproofing were not completed and in
some instances poorly executed during original construction. Several avenues or areas were observed that
will allow water into the walls and down to the unit below.
We recommend the following repairs at the upper level walkway and plaza waterproofing:
• At the ledgers (both sides) of the metal plank walkway, we recommend removing the lower course of
siding to access the ledger and weather resistive barrier (Tyvek). Install new 24 ga. galvanized
flashing at the ledger (Detail WP4). Seal all laps in the flashing with silicone sealant. The existing
weather resistive barrier must lap over the vertical flange of the new flashing. Reinstall the existing
siding or replace if damaged.
• Remove the entire concrete topping slab, portion of the sideway, and portions of the landscaping
located over the entry to the parking garage to access the existing waterproofing (see Limits of Repair
on Sheet WP I).
..................
.................
..................
. .................
..........
..........
WP3
D
Jc
I
LIMITS
OF
REPAIR
—.s
LANDSCAPING
CONCRETE LANDING
METAL PLANK WALKWAY
mm
GENERAL NOTES
1. ALL DIMENSIONS, AND
EXISTING DETAILS SHALL BE
FIELD - VERIFIED BY
CONTRACTOR PRIOR TO
BIDDING AND ACQUISITION
OR INSTALLATION OF
MATERIALS. CONTRACTOR
SHALL NOTIFY THE ENGINEER
OF ANY EXISTING CONDITION
FOUND TO BE DIFFERENT
THAN THAT INDICATED IN THE
CONTRACT DOCUMENTS. THE
ENGINEER SHALL REVIEW
THE SITUATION AND INFORM
THE CONTRACTOR OF
NECESSARY CHANGES, IF
ANY.
1 ENaumts
W E� NCHJMTS
nfnm ssc ISTS
Pao, Janney, Ei.t ,Aasodatea, Inc.
3809 South Wada M BoulovanI. Suite 400
Lakewood. Cdorado W235
303.914.4300 b11303.914.3000 tax
-.. +�
Project
Annie Mitchell
Aspen, Cobredo
Pro No 2010.1839
,A,�
r r
Sheet No,
Date JULY 2010
Drawn DDS
Sheet Title
REPAIR AREA PLAN
Checked SER
Scale NO SCALE
o copyright 2010 Wim, Janney, Elstner Associates, Inc.
Fde N. C: \BRIEFCAShUsuue Mitchell Wabrprcofing DO,dwg
Plotted: 9/22J2010 8 - .33 PM by St Dale
SIDING NOT SHOWN
FOR CLARITY
EXISTING TYVEK, LAP
OVER NEW GRACE
BITUTHENE 3000. REPAIR
OR REPLACE IF DAMAGED
EXISTING EXTERIOR
SHEATHING, REPLACE IF
DAMAGED OR DETERIORATED
NEW GRACE BITUTHENE -
OVER PRIMED SURFACE,
EXTEND 2' UP WALL & 2" ON
HORIZONTAL SURFACE
NEW 24 GA.. GALV. FLASHING,
EXTEND BOTTOM BELOW TOP
OF NEW TOPPING SLAB
GRACE LIQUID MEMBRANE
APPLY GRACE MASTIC AT
ALL EDGES
NEW GRACE BITUTHENE 3000,
TURN UP WALL 2"
EXISTING CONCRETE SLAB
DRAINAGE MAT
NOT SHOWN FOR
CLARITY
2"
8
J E MA7Eglll.B Gml s
A MMCT Kc S SSS
W
W., Janney, M.Mer AeewlN ,Inc.
3809 South Wads eoulns,d, Suite 400
Le9ewood, Colorado 80235
303.914,4300 all 1303.914.30M 1.
Project
Annie Mitchell
Aspen, Colorado
Pr No 2010.1839
/�
WP2
Sheet No
Date JULY 2010
Drawn DDS
Sheet Title
WALL DETAIL
Checlod SER
Scale NO SCALE
O coMlght 2010 W ns, lanoey, hiStner AssMMWS, InG ...... ",.....,.,..v... _... N ..,.,.,.. e .,,.,......
PlottN: 7/22/2010 9:33 PM by Strobl, Dale
EXISTING DRAIN ASSEM
REPLACE IF DETERIORATE[
DAMA
NEW CONCRETE TOPPING S
TO MATCH EXISTING, SLI
TOWARD DF
NEW GRACE LIQUID MEMBR
APPLY 3 -1/2" AROUND DRAIN.
BITUTHENE 3000 & CLAM
BEFORE FULLY CL
NEWY" DRAIN MATTO MI
EXIS
NEW BITUTHENE 30001
CLEANED & PRIMED SUR
EXISTING BITUTHENE
BACK 3" AROUND E
EXISTING CONCRETE
NOTE: REMOVE ALL LOOSE, DAMAGED, AND DETERIORATED EXISTING BITUTHENE MEMBRANE. THOROUGHLY
CLEAN SURFACE OF EXISTING MEMBRANE AND PRIME BEFORE THE INSTALLATION OF THE NEW BITUTHENE 3000.
AR==TS
W MAIFR1ALssa@ STS
J E
Wes, Janney, BlsMn Aasociats, Me.
3809 South Wads .M Bwlev , Suit 40D
Lak a d, Cotrado 80335
303 914.4300 111303.914 3000 fax
... +.em
Project
Annie Mitchell
Aspen, Coloratl0
P No. 2010.1839
W p 3
Sheet N, .
Date JULY 2010
Drawn DDS
Sheet Title
DRAIN DETAIL
Checked SER
Scat NO SCALE
o cop ght 2010 Wes ;Ja ,EISO ASSOe18ts, Inc. ........... .. Plotted: 71212 0.108_ 33 PM _ ._..
Plotted: 7/27f2010 8.33 PM by Stndt, Dale
EXISTING SIDING, REPLACE
IF DAMAGED OR
DETERIORATED. PAINT TO
MATCH EXISTING.
LAP EXISTING TYVEK 4" MIN.
OVER VERTICAL FLANGE OF
NEW FLASHING. REPLACE IF
DAMAGED. ADD
ADDITIONAL AS NEEDED.
SET NEW FLASHING IN FULL BED
OF POLYURETHANE SEALANT
EXISTING PERFORATED
METAL PLANK DECKING
m
NEW 24 GA. GALVANIZED
FLASHING, SEAL ALL LAPS
W/ SILICONE SEALANT
EXISTING LEDGER
names
J EJ Etvrtaars
ena�s saelmsrs
Wise. Janney, Flamer ASS «fates, Inc.
W09 South Wadww Soekvanl, Suite 400
Lakewootl, COlormdo 80235
303.914.43M let 12914.30001ax
— +�
Project
Annie Mitchell
Aspen, Coloratlo
Pro. No. 2010.1839
!•F
��A
Sheet No
Date JULY 2010
Drawn DDS
Sheet Tale
LEDGER FLASHING DETAIL
Chocked SER
Scale NO SCALE
0 coPynBht 2010 Wlss, Tammy, hlatrlef ASa«Iateo, Inc a we_....a
Plotted: 722/2010 8,33 PM by Stunt, Dale
t t7 T i 1 ENGINEERS Mr. Shaun Rourke
� ! J ( ■ L r ARCHITECTS City of Aspen
MATERIALS SCIENTISTS July 22, 2010
Page 3
• Remove the existing metal flashing at the ledge below where the metal plank and concrete topping
meet.
• Remove approximately 2 foot of siding at the walls on each side of the topping slab area and around
the comer approximately 6 feet.
• Remove the existing drainage mat.
• Cut back and remove the existing waterproofing membrane along the walls, around the drain, and
along the edge above the garage entry door.
• Remove any existing waterproofing membrane that is not well adhered, damaged or deteriorated.
• If the existing waterproofing membrane is well adhered in the field of the repair, thoroughly clean the
surface of the existing membrane.
• Apply Grace Liquid Membrane (LM) at all changes in plane at the ledge, beam and ledger interfaces
and then install new Ice and Water Shield at the ledge between the beams and ledgers as shown in
Detail WP 5.
• Fabricate new sheet metal covers to be installed over the ends of the beams and ledgers (Details WP 6
& WP 7). Install the new sheet metal flashings between the beams and ledger first. Preinstall the
new sheet metal covers to ensure proper fitment. Before final installation of the new covers, apply
LM approximately 45 mils thick over the entire ends of the beams and ledgers extending down onto
the surface of the structural slab and install the sheet metal covers before the LM is completely cured.
The covers at the ledger shall be sealed with the new sheet metal flashing installed at the top of the
ledgers.
• Fabricate and install a new piece of 20 ga. stainless steel flashing above the structural slab at the ends
of the beams (Details WP5 & WPS). The flashing will serve as form for the new concrete topping
slab and will prevent water at the waterproofing level from running over the edge at this location.
• Apply LM at all horizontal to vertical transitions (Detail WP2) and around the drain (Detail WP3).
• Prime the surface of the existing waterproofing membrane or substrate and install new Bituthene
3000 as shown in the details and per the manufacturer's specifications.
• Seal all laps in the new Grace Bituthene 3000 with LM or Grace Mastic.
• Following completion of the new waterproofing membrane, perform a flood test. The flood test
should be in place for 24 hours with 2 inches of water.
• Reinstall the siding above the repair area. Replace if damaged or deteriorated and paint to match
existing.
Z tl T � T L L , MATERIALS SCIENTISTS ENGINEERS Mr. Shaun Rourke
ARCHITECTS City of Aspen
July 22, 201
W
Page e 4 4
• Install new 1/4" thick drainage mat properly tied into the existing drainage mat.
Install a new concrete topping slab and sidewalk. Thickness and slope to match existing.
• Concrete for replacement topping slab should meet the following requirements:
• Minimum 28 day strength, f c = 4500 psi
• Maximum water-cement ratio = 0.45
• Air content = 6% ( + / -) 1.5%
• Concrete shall be mixed, conveyed, placed, tested, cured per ACI 301, latest edition
• Testing shall be performed by qualified inspection and testing agency retained by
owner
• Submit mix design and test results to engineer for review
• Reinstall the landscaping that was removed for the repair.
Due to complexity and importance of sequencing, we recommend a pre - construction meeting be held
once the topping slab, landscaping, and siding are removed from the repair area and prior to
commencement of the repair work to the waterproofing and flashings.
If you have any questions, please give us a call.
Sincerely,
WISS, JANNEY, ELSTNER ASSOCIATES, INC.
Dale Strutt, RRC, RRO
Senior Associate
NEW CONCRETE
TOPPING SLAB
EXISTING METAL PLANKS
NEW 18 GA. GALV. FLASHING,
SET HORIZONTAL FLANGE IN
GRACE LIQUID MEMBRANE
GRACE BITUTHENE 3000
1/4" DRAINAGE MAT
GRACE LIQUID MEMBRANE
WOOD BEAM BEYOND
GRACE LIQUID MEMBRANE
NEW 24 GA.
GALVANIZED FLASHING
NEW GRACE ICE AND
WATER SHIELD
EXISTING WALL
W A CMO TS
J E toIGIrI ItS
mnm ssclSrvnsTs
bliss, Janney, ElstrwrAecoolaba, Inc
Woe south Wads. Soulev.nl, S.ft400
" ewood, Cobratlo 00235
303.94.A3o0 tel 1303Jtt..300o fax
Protect
Annie Mitchell
Aspen, Co
Pro . No 2010.1839
VVP5
Sheet No.
Date JULY 201Colorado
D2 n DDS
Sheet Title
LEDGE FLASHING DETAIL
Che eC SER
Scale NO SCALE
Plotter: 7/27/2010 8:33 PM by Stna4 Dale
NEW 24 GA. GALVANIZED
FLASHING, COVERS TOP 3
SIDES & END OF BEAM. ALL
JOINTS & LAPS SHALL BE
SOLDERED. APPLY 45 MIL
THICK GRACE LIQUID
MEMBRANE ON BEAM &
ONTO DECK WHERE
FLASHING WILL BE
INSTALLED
NEW 24 GA. GALVANIZED
FLASHING
I
HEMMED EDGE, LOCK
HEMS AT LAPS
WATERPROOFING NOT SHOWN FOR CLARITY
J INGMe9s
W F n Cf[[ crs
L Faun SKI]XrISrs
wss, Janney, Elsb,se Asa wws, Inc.
Woe SoUO, MdswoM Bsuleve,d, Suite 400
�axewooq Colorado e023s
303.914 4300 bl 303.814 3000 fax
....x.m„
Project
Annie Mitchell
Moen, Cobratb
Pro. No 2010.1839
W p g
Sheet NO.
Dale JULY 2010
Drawn DDS
Sheet Title
BEAM FLASHING ISOMETRIC
Che ad $ER
Scale NO SCALE
O copyright 2010 W1ss, ]ennry, mar ssoclams, a -
Y ..,,. .... e
Plotted: ]/2217A10 8.33 PM by Strutt, Dale
NEW 24 GA. GALV. FLASHING
m
NEW 24 GA. GALVANIZED
FLASHING, ALL JOINTS &
LAPS SHALL BE SOLDERED.
APPLY 45 MIL THICK GRACE
LIQUID MEMBRANE ON BEAM
& ONTO DECK WHERE
FLASHING WILL BE
INSTALLED
I
NEW 24 GA.
GALVANIZED
FLASHING
HEMMED EDGE,
LOCK HEMS AT LAPS
WATERPROOFING NOT SHOWN FOR CLARITY
ENOIEERS
W E ARCW s s
MATERW,55C0J1]ST5
1
wise, Janney, Elsner Associates, Inc.
3809 South Mdawwth Boulevard, Suite 400
Lakewood, Colorado 80235
303914.4300 tel 1303.914.3000 fax
Project
I e
Annie Mitchell
Aspen, Colo rado
Pro. No.
'A I��
r r
Sheet No,
DeIB JULY 2010
Dmmn DDS
Sheet Tole
LEDGER FLASHING ISOMETRIC
Checked SER
Scale NO SCALE
o copyright 2010 Wiss, Janney, Elsma Associates, Inc. He Name CABR1EFCAS&A ni, Mitchell Weteeproofing Dtls.. dg
Plotted: ]222010 833 PM by Strad, Dale
EXISTING PERFORATED
STEEL WALKWAY PLANKS
18 GA. GALVANIZED
FLASHING. RE: DETAIL WP 5
NEW SEALANT
24 GA. GALVANIZED
FLASHING. RE: DETAIL WP6
NEW 24 GA. GALVANIZED
FLASHING
HEMMED EDGE, LOCK
HEMS AT LAPS
WATERPROOFING NOT SHOWN FOR CLARITY
W 1 EN01ta ms
E A8CM7ECTS
MAME S3cIEN1ISTS
W., Jennry, Elshpe ASSOelates, Ine.
3908 South WedawoM 13oulevaN, suite 400
Lakewood, CwOmde 80235
303814.4300 tel 1303.814.30001.
Project
Annie Mitchell
Aspen, Cobrad 0
Pro. No. 2010.1839
'+a
WP
Sheet No.
Dale JULY 2010
Drawn DDS
Sheet Title
ISOMETRIC OF EDGE DETAIL
Checked SER
scale NO SCALE
m copyright 2010 Wimv Tenney, Elsner Associate, Inc rue ry me: t, usx ZMA=n e m ucnmt wareryvammg wS -. g
Plotted, 722/2010 834 PM by Struts, Dale
Z t! 7� T I WEEKS Mr. Shaun Rourke
ARCHITECTS ARCHITECCS City of Aspen
W
MATERIALS SCIENTISTS July 22, 2010
Page 9
Figure 9. View ofsheet metal flashing at ledge above wall and
beams placed on ledge.
Figure 10. View of waterproofing membrane behind sheet metal
flashing.
CHOPU CONSTRUCTION, LLC
Chopu Construction
234 E Hopkins Avenue
Aspen, CO 81611
(970) 948 -0017
garrett @chopuconstruction.com
Change Order
8/4/2010 11
I Name/Address I
City of Aspen
130 S Galena St
Aspen, CO 81611
Roofing, Flashing, heat tape - see subcontractors breakdown on cost
Electrical new circuits wiring etc for new heat tape - see subcontractors breakdown on cost
Supervision 12
light Carpentry to remove existing plywood sheathing over leak area above door to verify the 2
source of the leak and reinstall
painting of conduit along wall to match existing includes painting supplies and labor if done
by Chopu and not a subcontractor
labor & materials for drywall replacement, taping, mud, painting, for unit below (includesjust
the small area already removed around the door. Does not include for other areas of the unit.
If a larger area is needed this number can be rebid after the scope of work is more clearly
defined. Assuming just the area around the door per memory is no more than 15 sq ft at most.
Expecting just 1 sheet or even 1/2 a sheet of drywall to be needed. And repainting the deck
facing wall 2 coats paint.
Temporary restroom facilities (1 month can be used for other job if done at the same time) 1
Profit & Overhead 10%
1.5% General Liability insurance
Total
Signature
8/4/2010
10,184.001 10,184.00
2,038.35 2,038.35
70.00 840.00
50.00 100.00
150.001 150.00
125.00
230.65
125.00
1,405.00
230.65
$15,523.00
ENGINEERS
WJ E � ARCHITECTS
MATERIALS SCIENTISTS
Via Email: Shaun.Rourke @ci.aspen.co.us
July 19, 2010
Mr. Shaun Rourke
City of Aspen
Aspen, Colorado
Re: Annie Mitchell Roof Issues - Unit 620
Aspen, Colorado
WJE No. 2010.1839
Dear Mr. Rourke:
Wise, Janney, Elstner Associates, Inc.
3609 South Wadsworth Boulevard, Suite 400
Lakewood, Colorado 80235
303.914.4300 tel 1 303.914.3000 fax
www.wje.com
Per our proposal, Wiss, Janney, Elstner Associates Inc. (WJE) visited the Annie Mitchell condominium
complex located in Aspen, Colorado. The purpose of this visit was to perform an investigation of the
roofing to determine the source of two roof leaks that occurred at Unit 620 this past winter. Based on our
findings, we have outlined below our recommendations for repair of this issue.
OVERVIEW
The multi -unit complex, comprised of condominium buildings and a plaza area, is constructed mostly
over a parking structure. The 2:12 and 12:12 steep sloped roofs (Figure 1) consist of 5V pre- finished
metal roof panels secured with screws (with rubber washers) over a self- adhered underlayment adhered to
wood sheathing. The roof structure has a traditional attic space that is vented at the eave soffits and at
gable vents at the gabled roofs or, at mono - sloped roofs, a continuous vent at the high soffits.
WJE provided repair recommendations regarding snow management and those recommendations have
been implemented at the project.
Reportedly, two leaks have occurred at Unit 620 during this past winter: one above the door to the
balcony deck and one near the skylight. Photographs provided by the City of Aspen indicate that
significant ice conditions occurred near the cave edge of the roof above this unit.
OBSERVATIONS
Two leak areas were reported at Unit 620: One above the swing door to the balcony deck (Figure 2) and
one near the skylight (Figure 3).
Observations were performed in the attic but were limited due to the placement of a girder truss located
approximately 6 feet back from the exterior wall. No visible signs of condensation were observed
indicating the attic is adequately ventilated to prevent such a condition (Figure 4). Approximately 18 to
20 inches of blown insulation was placed above the ceiling in the attic (Figure 5). Baffles were provided
at the lower portion of the roof to prevent the insulation from blocking the air passage at the eaves of the
roof and these appeared to be open (Figure 6).
Headquarters & Laboratories — Northbrook, Illinois
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t t/ J� MATERIALS SCIENTISTS ENGINEERS Mc Shaun Rourke
ARCHITECTS City of Aspen
July 19, 2
�
Page e 2 2
A metal roof panel was removed adjacent the area where panels were removed have been previously
removed as part of the the snow fence installation project (Figure 7). At this location, the edge of the
Grace Ultra, installed as part of the snow fence installation, was lapped over the existing Grace Ice and
Water Shield (Figure 8).
Ice and Water Shield was installed over the horizontal flange of the cave and rake edge flashings.
However, no Ice and Water Shield extended down behind the gutter.
A roof panel was removed along the side of the skylight to observe the skylight flashing and
underlayment (Figure 9). Accumulated dirt under the panel and on the surface of the Ice and Water
Shield indicate that water has been under the panel at this location (Figure 10). No visible deficiencies
were observed in the exposed Ice and Water Shield near the skylight.
DISCUSSION
In our opinion, the 5V metal panels installed on the 2:12 slopes are not suited for such a low slope and
winter weather conditions in this area. The panels have low ribs and are not sealed where the panel joints
overlap which make it more susceptible for water to get under the metal panels. A mechanically seamed
standing seam metal roof system would be better suited for these roofs.
Based on our observations and discussions on site, we believe the leak at the head of the balcony door is a
result of excessive ice accumulation at and near the cave edge. It appears the formation of ice is caused
by water freezing at the gutter located between the balcony roofs. As the ice continues to build, it can
push up under the cave and rake flashing and into the soffit and attic (Figure I]). In addition to repairs to
the roofing, the installation of heat cable will be necessary along the cave edges, gutters, and downspouts
to manage the ice issues occurring at this location.
RECOMMENDATIONS
We recommend the following repair:
• Remove the existing roof panels to expose the underlayment from 4ft. east of the east skylight to 4 ft
west of the west skylight (as shown on roof plan below).
Demolition Plan (Remove panels at shaded area)
t/ j i ENGINEERS
W1 ARCHITECTS
MATERIALS SCIENTISTS
Mr. Shaun Rourke
City of Aspen
July 19, 2010
Page 3
Remove the existing gutter, edge metal between the balcony roofs, portions of the eave metal at the
balcony roofs.
Remove the existing flashing from around each of the skylights.
• Remove a sheet of the existing plywood sheathing over the leak area above the door to verify the
source of the leak and reinstall.
• Remove all loose and non - adhered existing Ice and Water Shield.
• Clean (and prime as necessary) the existing Ice and Water Shield to remain to achieve full adhesion
of the new Grace Ultra.
• Install a new 18 inch wide strip of Grace Ultra extending 3 inches over the edge onto the face of the
fascia at the eave and rake edges. Install new edge metal at eave and rake edges and gutter as shown
in the details below.
NEW GRACE ULTRA. LAP
OVER NEW EDGE METAL
10' GRACE ULTRA. EXTEND
OVER EDGE T
NEW 24 GA. EDGE METAL
NEW GUTTER, INSTALL
OVER GRACE ULTRA
METAL ROOF PANEL. SET EDGE
IN SEALANT BEFORE ENGAGING
INTO NJ STRIP
NEW 'J' STRIP. SET IN SEALANT
NEW GRACE ULTRA, LAP
OVER NEW EDGE METAL
19 GRACE ULTFA, E %TEND
OVER EDGE 3'
NEW 24 GA. EDGE METAL
Eave Detail Rake Detail
• Install new Grace Ultra at entire area shown on the roof plan above. Lap this layer over the
horizontal flange of the edge flashing. Seal the edges of the new Grace Ultra where it ends at the
existing Ice and Water Shield with Grace Mastic.
• Reinstall the snow fence flashing (if not damaged) as specified in the drawings provided during the
snow fence installation.
• Remove loose and canted existing Ice and Water Shield around both skylights. Apply a cove bead of
Grace Liquid Membrane at the base of skylight curbs. Install new Grace Ultra extending to the top of
the existing skylight curbs. Apply Grace Mastic at all laps and corners. Install new 24 ga. pre -
finished metal flashing at the perimeter of the skylights integrating properly with the metal roof
panels. Provide a "J" strip along the raw edges of the panels along the sides of the skylights.
• Re- install the metal panels, replace if damaged. At all reinstalled panels, install butyl tape at the
vertical laps.
• Following the completion of the installation of the metal panels, install new heat cable at the eave
edges of the balcony roofs and at the eave edge between the balcony roofs. The heat cable should be
installed in loops 12 inches on center, loop into the gutter 3 inches, and extend up the roof slope 24
inches past the exterior wall. Install two lines of cables in the bottom of the gutter and completely
down through the downspout. Install new electrical circuits as necessary to operate system.
W J E ENGINEERS Mc Shaun Rourke
ARCHITECTS City of Aspen
MATERIALS SCIENTISTS July 19, 2
Page e 4 4
E E
New Heat Cable Locations
If you have any questions, please give us a call.
Sincerely,
WISS, JANNEY, ELSTNER ASSOCIATES, INC.
Dale Strutt, RRC, RRO
Senior Associate
W) E ARCHITECT Mr. Shaun Rourke
ARCHITECTS City of Aspen
MATERIALS SCIENTISTS July 19, 2010
Page 5
Figure 1. View of roof above Unit 620.
Figure 2. Leak area above balcony door.
t <j J i �^ EN GI NE ER S T MATERIALS SCIENTISTS Page Mr. Shaun Rourke
ARCHITECTS
W 1 L ARChcTS City of Aspen
July 19, 6
6
Figure 3. Reported leak area near skylight.
Figure 4. View of bottom of roof sheathing in attic.
W) E ENGINEERS Mr. Shaun Rourke
ARCHITECTS City of Aspen
MATERIALS SCIENTISTS July 19, 2010
e 7
Page 7
Figure 5. Insulation depth in attic.
Figure 6. Baffles installed at eave
t tJ (� MATERIALS SCIENTISTS ENGINEERS Mc Shaun Rourke
ARCHITECTS City of Aspen
July 19, 201
� /
Page e 8 8
Figure 7. View of existing Ice and Water Shield.
Figure 8. Edge of Grace Ultra visible.
� RIA ENGINEERS Mr. Shaun Rourke
ARCHITECTS City 1 Aspen
MATELS SCIENTISTS July 1 Page
W
Page 9
Figure 9. Panel removed at skylight.
Figure 10. Accumulated dirt under panel.
Mr. Shaun Rourke
I ENGINEERS City of Aspen
1 ARCHITECTS July 19, 2010
WJE MATERIALS SCIENTISTS Page 10
Figure 11. Eave and rake intersection.