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Home My WebLink AboutFile Documents.533 W Hallam St.0285.2018 (108).ARBK aec Architectural Engineering Consultants, Inc. Mechanical, Electrical, & Lighting Design Services An Office with LEEDTTMM Accredited Professionals 40801 US Hwy 6 & 24, Suite 214, Eagle-Vail, CO 81620 Post Office Box 8489, Avon, CO 81620 phone: 970-748-8520 email: stan@aec-vail.com web: www.aec-vail.com The linked image cannot be displayed. The file may have been moved, renamed, or deleted. Verify that the link points to the correct file and location. November 19, 2018 William Luis Poss Architecture & Planning 605 East Main Street, Aspen, CO 81611 Re: Duncan Ski Haus, Dear William, This document is intended to show compliance of the addition & remodel of the residence located at 533 West Hallam, Aspen in Pitkin County, Colorado with the 2015 International Energy Conservation Code (2015 IECC). We propose to use a prescriptive approach per sections 402.1-402.3 and 403.2.1 of the 2015 IECC. I have also included the inspection checklist from the 2015 IECC Rescheck program for your use. Project The project at 533 West Hallam is an addition & remodel of a residence with a floor area of approximately 3,740 sf. The heat load calculations are performed using the Carrier Hourly Analysis Program and provides a more detailed and accurate load than Manual J. A dewpoint calculation is not included in these permit documents, as the roof assembly meets the requirements of section R806.5 of the 2015 IRC. Building Envelope The following table lists the mandatory minimum insulation and fenestration requirements for the project climate zone (7). All new assemblies will meet the following requirements. Fenestration U-factor Skylight U-factor Ceiling R-value Wood frame wall R-value Floor R-value Basement wall R-value Slab R-value Crawl Wall R-value Code Minimums 0.28 (1) 0.55(1) 49 20+5 (6) 38 (2) 15/19 (3) 10 (4) 15/19 (5) Notes: 1) Fenestration SHGC requirements do not apply in climate zone (7) 2) Or insulation sufficient to fill the framing cavity, R-19 minimum 3) R-15 continuous insulation on the interior or exterior or R-19 cavity insulation on the interior of the basement wall. Can be satisfied with R-13 cavity plus R-5 continuous. 4) 4 ft deep and R-15 edge insulation for heated slabs 5) R-15 continuous insulation or R-19 cavity insulation. 6) All alterations that expose a framing cavity will have the cavity filled with insulation per R503.1.1 Sincerely, Bryan Urban, EIT 12/04/2018 OUTDOOR TEMPERATURE -15 °F OUTDOOR TEMPERATURE 88 °F INDOOR TEMPERATURE 72 °F INDOOR TEMPERATURE 75 °F TOTAL HEAT LOSS 89,782 BTU/HR SENSIBLE HEAT GAIN 85,380 BTU/HR LATENT HEAT GAIN 4,938 BTU/HR TOTAL HEAT GAIN 90,318 BTU/HR MANUAL J DESIGN CONDITIONS WINTER DESIGN CONDITIONS SUMMER DESIGN CONDITIONS 12/04/2018 Zone Sizing Summary for Manual J Project Name: 18032 - Duncan Skihaus 11/19/2018 Prepared by: AEC 01:39PM Air System Information Air System Name Manual J Equipment Class UNDEF Air System Type SZCAV Number of zones 1 Floor Area 6095.0 ft² Location Eagle, Colorado Sizing Calculation Information Zone and Space Sizing Method: Zone CFM Sum of space airflow rates Space CFM Individual peak space loads Calculation Months Jan to Dec Sizing Data Calculated Zone Sizing Data Maximum Design Minimum Time Maximum Zone Cooling Air Air of Heating Floor Sensible Flow Flow Peak Load Area Zone Zone Name (MBH)(CFM)(CFM)Load (MBH)(ft²)CFM/ft² Zone 1 79.2 6078 6078 Jul 1600 89.8 6095.0 1.00 Zone Terminal Sizing Data No Zone Terminal Sizing Data required for this system. Space Loads and Airflows Cooling Time Air Heating Floor Zone Name / Sensible of Flow Load Area Space Space Name Mult.(MBH)Load (CFM)(MBH)(ft²)CFM/ft² Zone 1 001 FAMILY RM 1 5.4 Jul 1500 399 3.0 685.0 0.58 002 PWDR 1 0.2 Jul 1500 17 0.2 35.0 0.48 004 STO 1 0.0 Jul 1500 6 0.1 30.0 0.22 005 LAUNDRY 1 0.6 Jul 1500 71 1.4 135.0 0.53 010 BEDROOM 1 1 2.7 Jul 1700 197 3.7 285.0 0.69 012 CLO 1 0.3 Jul 1500 27 0.5 65.0 0.42 013 BATH 1 1 0.9 Jul 1500 63 1.1 130.0 0.48 020 BEDROOM 2 1 2.3 Jul 1500 177 3.5 345.0 0.51 021 DRESS 1 0.2 Jul 1500 17 0.2 50.0 0.34 023 BATH 2 1 0.8 Jul 1500 58 1.0 120.0 0.48 030 BEDROOM 3 1 2.9 Jul 1700 216 4.3 345.0 0.63 031 DRESS 1 0.3 Jul 1500 39 0.8 65.0 0.61 033 BATH 1 0.9 Jul 1500 63 1.1 130.0 0.48 040 BEDROOM 4 1 2.2 Jul 1500 180 3.6 320.0 0.56 042 BATH 4 1 0.9 Jul 1500 72 1.4 140.0 0.51 101 ENTRY 1 4.9 Aug 1500 362 4.0 250.0 1.45 102 CAS DINING 1 6.5 Jul 1600 476 6.5 220.0 2.17 102 MUD 1 1.7 Jul 1700 121 2.4 135.0 0.90 103 GARAGE 1 4.2 Aug 1600 370 7.4 475.0 0.78 105 PWDR 1 0.5 Aug 1500 33 0.6 45.0 0.73 106 LIVING 1 8.3 Jul 1700 608 5.6 375.0 1.62 107 KITCHEN 1 3.2 Jul 1600 237 2.4 260.0 0.91 108 PANTRY 1 1.6 Jul 1600 118 0.6 40.0 2.96 111 ENTRY 1 5.0 Aug 1500 367 6.1 140.0 2.62 113 DINING 1 6.5 Jul 1500 476 7.9 295.0 1.61 114 OFFICE 1 5.4 Jul 1600 397 5.6 130.0 3.06 201 STAIR 1 1.4 Aug 1500 104 1.4 150.0 0.69 202 STORAGE 1 0.4 Jul 1500 84 1.7 150.0 0.56 203 MSTR BDRM 1 5.8 Aug 1600 429 6.8 325.0 1.32 207 MSTR BATH 1 4.0 Jul 1700 294 4.7 225.0 1.31 Hourly Analysis Program v4.50 Page 1 of 1 12/04/2018 aec Architectural Engineering Consultants, Inc. Mechanical, Electrical, & Lighting Design Services An Office with LEED TM Accredited Professionals Warm Roof Assembly Worksheet Project: AEC Project Number: Date: Calculated By: Thermal Resistance of Assembly - R-1 Thickness Component R-Value Outside air Layer 0.17 3" Pavers 0.44 2" Sand 1.16 3" Rigid Insulation 15 Varies Water-proof Membrane 0.2 8" Concrete 0.48 6" Spray Foam Insulation 44 5/8" Gypsum Board 0.56 Inside Air Layer 0.65 Rext 61.45 Rtotal 62.66 Rext R Value of the Exterior Sheating Rtotal R Value of the Total Roof Assembly Tin Interior Temperature (70°) Tout Exterior Temperature (Assuming 19.8° Mean Daily Temperature for Eagle) Tinterface Temperature at the Rigid/Batt Insulation Interface Tinterface Rext / Rtotal * (Tin - Tout) + Tout Tinterface 61.45 62.66 70 19.8 19.8 Tinterface 69.0 °F Dewpoint at 30 % Relative Humidity 37°F Dewpoint at 35 % Relative Humidity 41°F The temperature of the spray foam/gyp board insulation interface is 69°F. Therefore, the resulting dew point of 41°F would occur in the exterior rigid insulation, which verifies compliance. Duncan Ski Haus 18032 11/26/2018 Bryan Urban 12/04/2018 aec Architectural Engineering Consultants, Inc. Mechanical, Electrical, & Lighting Design Services An Office with LEED TM Accredited Professionals Warm Roof Assembly Worksheet Project: AEC Project Number: Date: Calculated By: Thermal Resistance of Assembly - R-2 Thickness Component R-Value Outside air Layer 0.17 Varies Cedar Shingles 0.97 Varies Water-proof Membrane 0.2 5/8" Sheathing 0.77 6" Spray Foam Insulation 49 5/8" Gypsum Board 0.56 Inside Air Layer 0.65 Rext 51.11 Rtotal 52.32 Rext R Value of the Exterior Sheating Rtotal R Value of the Total Roof Assembly Tin Interior Temperature (70°) Tout Exterior Temperature (Assuming 19.8° Mean Daily Temperature for Eagle) Tinterface Temperature at the Rigid/Batt Insulation Interface Tinterface Rext / Rtotal * (Tin - Tout) + Tout Tinterface 51.11 52.32 70 19.8 19.8 Tinterface 68.8 °F Dewpoint at 30 % Relative Humidity 37°F Dewpoint at 35 % Relative Humidity 41°F The temperature of the spray foam/gyp board insulation interface is 68.8°F. Therefore, the resulting dew point of 41°F would occur in the exterior rigid insulation, which verifies compliance. Duncan Ski Haus 18032 11/26/2018 Bryan Urban 12/04/2018 aec Architectural Engineering Consultants, Inc. Mechanical, Electrical, & Lighting Design Services An Office with LEED TM Accredited Professionals Warm Roof Assembly Worksheet Project: AEC Project Number: Date: Calculated By: Thermal Resistance of Assembly - R-3 Thickness Component R-Value Outside air Layer 0.17 Varies Water-proof Membrane 0.2 1/2" Firestone Isoguard 2.5 4" Rigid Insulation 5 6" Spray Foam Insulation 44 5/8" Gypsum Board 0.56 Inside Air Layer 0.65 Rext 51.87 Rtotal 53.08 Rext R Value of the Exterior Sheating Rtotal R Value of the Total Roof Assembly Tin Interior Temperature (70°) Tout Exterior Temperature (Assuming 19.8° Mean Daily Temperature for Eagle) Tinterface Temperature at the Rigid/Batt Insulation Interface Tinterface Rext / Rtotal * (Tin - Tout) + Tout Tinterface 51.87 53.08 70 19.8 19.8 Tinterface 68.9 °F Dewpoint at 30 % Relative Humidity 37°F Dewpoint at 35 % Relative Humidity 41°F The temperature of the spray foam/gyp board insulation interface is 68.9°F. Therefore, the resulting dew point of 41°F would occur in the exterior rigid insulation, which verifies compliance. Duncan Ski Haus 18032 11/26/2018 Bryan Urban 12/04/2018 12/04/2018 12/04/2018 12/04/2018 12/04/2018 12/04/2018