HomeMy WebLinkAboutFile Documents.430 W Hallam St.0291.2017 (87).ARBK aec
Architectural Engineering Consultants, Inc.
`
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:www.aec-vail.com
October 26, 2017
Kara Thompson
Forum Phi
715 W. Main Street #204
Aspen, CO 81611
Re: 430 W. Hallam
Dear Kara,
This document is intended to show compliance of the new construction of the residence located at 430
W. Hallam, Aspen, CO with the 2015 International Energy Conservation Code (2015 IECC). We propose
to use the Prescriptive Alternative approach per sections 402.1-402.3 and 403.2.1 of the 2015 IECC.
Project
The project at 430 W. Hallam is the new construction of a residence with a floor area of 5365 sf plus
attached garage. For dewpoint, heat load calculations, and REMP, please refer to the Appendix. The heat
load calculations are performed using the Carrier Hourly Analysis Program and provides a more detailed
and accurate load than Manual J.
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
Ceiling R-
value
Wood frame
wall R-value
Floor
R-value
Basement wall
R-value
Slab
R-value
Code Minimums 0.28 (1) 49 20+5 (2) 38 (3) 15/19 (4) 10 (5)
Notes: 1) Fenestration SHGC requirements do not apply in climate zone (7)
2) Or maximum U-Value of .045 (see attached for U-value alternative calculation), R-10 continuous
insulation or R-13 cavity insulation.
3) Or insulation sufficient to fill the framing cavity, R-19 minimum
4) 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.
5) 4 ft deep and R-15 edge insulation for heated slabs
Sincerely,
Dan Findley
aec
Architectural Engineering Consultants, Inc.
Mechanical, Electrical, & Lighting Design Services
An Office with LEEDTM Accredited Professionals
Wall Assembly Worksheet - U-value Alternative Project:
AEC Project Number:17052
Date:10/26/2017
Calculated By: DGD
Thermal Resistance of Assembly - Wall W-6
Thickness Component
R-Value-
Studs
R-Value
Cavity
0.17 0.17
0.8 0.8
3/4"0.94 0.94
Varies 0.2 0.2
2"Spray Foam Insulation 34.375
5.5"2x6 Wood Stud 6.875 6.875
5/8"Gypsum Board 0.56 0.56
Inside Air Layer 0.68 0.68
Percent for 16" o.c.23%77%
Total Wall Component R-Value 10.225 44.6 4.361858
U-Value 0.097799511 0.022422
Utotal 0.0398
Rtotal R Value of the Total Wall Assembly Utotal is less than 0.045 and therefore meets the alternative requirements
430 Hallam
Outside air Layer
Wood Siding
Plywood
Water-proof Membrane
Zone Sizing Summary for Cooling
Project Name: 17052 - 430 W. Hallam 10/19/2017
Prepared by: AEC 04:59PM
Hourly Analysis Program v4.50 Page 1 of 2
Air System Information
Air System Name .......................................... Cooling
Equipment Class ............................................ UNDEF
Air System Type ............................................. SZCAV
Number of zones ............................................................. 1
Floor Area .............................................................. 7825.0 ft²
Location ............................................... Aspen, 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 1 163.7 12031 12031 Jul 1600 150.7 7825.0 1.54
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 Rec Room 1 12.5 Jul 1400 870 7.7 725.0 1.20
003 LL Powder 1 0.5 Jul 1500 38 0.3 40.0 0.94
004 Bedroom Vestibule 1 0.8 Jul 1500 53 0.5 80.0 0.66
005 Guest Bedroom 1 1 3.6 Jul 1500 249 4.3 315.0 0.79
006 Guest Bath 1 1 2.0 Jul 1400 139 1.7 145.0 0.96
007 Guest Bedroom 2 1 3.6 Jul 1500 252 3.6 320.0 0.79
009 Guest Bathrom 2 1 2.8 Jul 1500 194 2.3 170.0 1.14
010 Bunk Room 1 4.1 Jul 1500 282 2.8 255.0 1.10
011 Girls Bath 1 2.8 Jul 1500 194 2.3 215.0 0.90
012 Boys Bath 1 1.3 Jul 1500 89 1.0 100.0 0.89
013 Guest Bedroom 3 1 2.8 Jul 1400 196 2.5 195.0 1.01
014 Guest Bath 3 1 1.3 Jul 1500 89 1.0 100.0 0.89
015 Bedroom Vestibule 2 1 0.3 Jul 1500 24 0.2 40.0 0.60
016 Guest Bedroom 4 1 3.3 Jul 1400 232 3.7 235.0 0.99
017 Guest Bath 1 1.5 Jul 1500 104 1.6 110.0 0.95
018 Hall 1 2.7 Jul 1500 187 1.2 215.0 0.87
019 Laundry Room 1 1.3 Jul 1500 87 0.6 100.0 0.87
021 Gym 1 5.6 Jul 1500 388 3.1 300.0 1.29
022 Vestibule 1 0.5 Jul 1500 36 0.3 60.0 0.60
023 Massage 1 1.9 Jul 1500 129 2.1 135.0 0.95
026 Spa WC 1 0.1 Jul 1500 8 0.1 25.0 0.32
101 Entry 1 5.6 Jul 1500 389 6.4 295.0 1.32
102 ML Powder 1 0.5 Sep 1500 36 0.6 25.0 1.45
103 Living Room 1 16.8 Aug 1600 1165 17.5 425.0 2.74
104 Family Room 1 5.6 Nov 1400 386 4.1 185.0 2.09
105 Kitchen 1 13.4 Jul 1400 926 4.3 245.0 3.78
106 Dining Room 1 6.1 Jul 1400 420 3.0 210.0 2.00
107 Mudroom 1 2.1 Jul 1400 146 2.2 130.0 1.12
107a Stairs 1 2.1 Jul 1000 146 2.1 80.0 1.83
108 Garage 1 8.8 Jul 1500 1011 19.7 520.0 1.94
109 Boys Room 2 1 3.6 Jul 1500 248 4.2 230.0 1.08
110 Bath 2 1 0.8 Jul 1500 59 0.9 50.0 1.18
112 Boys Room 1 1 6.6 Aug 1600 456 7.0 240.0 1.90
113 Bath 1 1 1.2 Jul 1700 80 1.6 55.0 1.46
115 Hall 1 17.4 Jul 1700 1205 12.7 210.0 5.74
Zone Sizing Summary for Cooling
Project Name: 17052 - 430 W. Hallam 10/19/2017
Prepared by: AEC 04:59PM
Hourly Analysis Program v4.50 Page 2 of 2
Cooling Time Air Heating Floor
Zone Name / Sensible of Flow Load Area Space
Space Name Mult. (MBH) Load (CFM) (MBH) (ft²) CFM/ft²
201 Office 1 5.8 Aug 1400 406 6.3 300.0 1.35
202 Master Bedroom 1 8.4 Aug 1400 586 7.5 360.0 1.63
203 Master Bath 1 5.4 Jul 1600 373 4.7 255.0 1.46
204 Master Dressing Room 1 1.6 Jul 1600 155 3.0 130.0 1.19
OUTDOOR TEMPERATURE -15 °F OUTDOOR TEMPERATURE 82 °F
INDOOR TEMPERATURE 72 °F INDOOR TEMPERATURE 75 °F
TOTAL HEAT LOSS 146,259 BTU/HR SENSIBLE HEAT GAIN 172,752 BTU/HR
LATENT HEAT GAIN 17,771 BTU/HR
TOTAL HEAT GAIN 190,523 BTU/HR
MANUAL J DESIGN CONDITIONS
WINTER DESIGN CONDITIONS SUMMER DESIGN CONDITIONS
aec
Architectural Engineering Consultants, Inc.
Mechanical, Electrical, & Lighting Design Services
An Office with LEEDTM Accredited Professionals
Warm Roof Assembly Worksheet Project:430 W. Hallam
AEC Project Number:17052
Date:10/26/2017
Calculated By: DPF
Thermal Resistance of Assembly - Typical Roof
Thickness Component R-Value
Outside air Layer 0.17
Varies Water-proof Membrane 0.2
5/8"Plywood 0.77
8"Spray Foam Insulation 50
6"Structure 24" OC 1.4
5/8"Gypsum Board 0.56
Inside Air Layer 0.65
Rext 51.14
Rtotal 53.75
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 51.14 53.75 70 19.8 19.8
Tinterface 67.6 °F
Dewpoint at 30 % Relative Humidity 37°F
Dewpoint at 35 % Relative Humidity 41°F
The temperature of the rigid/batt insulation interface is 67.6°F. Therefore, the resulting dew point of 41°F
would occur in the exterior rigid insulation, which verifies compliance.