HomeMy WebLinkAboutFile Documents.955 Chatfield Rd.0172.2018 (11).ARBK �+ow�oNo
4 aec4r fMBEP
Architectural Engineering Consultants, Inc.
An Office with LEEDTM Accredited Professionals
June 1, 2018
David Rosenfeld
Charles Cunniffe Architects
610 East Hymen Ave.
Aspen, CO 81611
Re: Chatfield Residence, 955 Chatfield Dr.
Dear David,
This document is intended to show compliance of the remodel of the residence located at 955 Chatfield
Drive, Aspen, CO 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.
Project
The project at 955 Chatfield Drive is the remodel of a residence with a floor area of 4500 sf plus attached
garage. For heat load calculations, 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 Ceiling R- Wood frame Floor Basement wall Slab
U-factor value wall R-value R-value R-value R-value
Code Minimums 0.28 (1) 49 20+5 or 13+10 38 (2) 15/19 (3) 10 (4)
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-10 continuous insulation or R-13 cavity insulation.
Sincerely,� y,
(2,±
Dan Findley
Mechanical Engineer
40801 US Hwy 6 &24, Suite 214, Eagle-Vail, CO 81620 Post Office Box 8489,Avon, CO 81620
phone: 970-748-8520 email: stannaec-vail.com web: www.aec-vail.com 0 6/2 5/2 018
ASPEN
BUILDING DEPARTMENT
Zone Sizing Summary for WHOLE HOUSE
Project Name: 18017-955 Chatfield 05/29/2018
Prepared by:AEC 10:32AM
Air System Information
Air System Name WHOLE HOUSE Number of zones 1
Equipment Class UNDEF Floor Area 5125.0 ft2
Air System Type SZCAV Location Aspen,Colorado
Sizing Calculation Information
Zone and Space Sizing Method:
Zone CFM Sum of space airflow rates Calculation Months Jan to Dec
Space CFM Individual peak space loads 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 90.1 7142 7142 Jul 1600 85.6 5125.0 1.39
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 BUNKS 1 6.1 Jul 1700 444 4.8 320.0 1.39
002 BEDROOM 1 2.8 Jul 1700 208 2.3 210.0 0.99
003 BATH 1 0.4 Jul 1700 34 0.7 35.0 0.97
004 BATH 1 0.8 Jul 1500 57 1.2 115.0 0.50
005 CL 1 0.4 Aug 1600 36 0.7 60.0 0.60
006 MECH 1 0.2 Jul 1500 12 0.1 35.0 0.34
007 MECH 1 0.4 Jul 1700 31 0.5 65.0 0.48
008 BUNKS 1 3.6 Sep 1400 262 2.3 240.0 1.09
009 BATH 1 0.4 Jul 1500 31 0.2 65.0 0.47
010 RECREATION 1 5.3 Jul 1500 387 3.8 460.0 0.84
011 LAUNDRY 1 0.4 Jul 1500 51 1.0 100.0 0.51
012 STORAGE 1 0.4 Jul 1500 31 0.6 70.0 0.45
101 LIVING ROOM 1 14.7 Jul 1600 1079 9.1 580.0 1.86
102 DEN 1 8.1 Jul 1700 592 5.4 215.0 2.75
103 MASTER BEDROOM 1 9.5 Jul 1700 694 9.1 410.0 1.69
104 DINING 1 11.4 Sep 1400 839 8.6 310.0 2.71
105 KITCHEN 1 3.3 Jul 1500 243 1.6 240.0 1.01
106 POWDER 1 1.1 Nov 1400 78 0.8 40.0 1.94
107 MASTER BATH 1 2.9 Jul 1600 228 4.6 200.0 1.14
108 CLOSET 1 0.4 Jul 1700 32 0.6 60.0 0.54
109 CLOSET 1 0.3 Jul 1600 22 0.4 50.0 0.43
110 THEATER 1 4.6 Jul 1500 335 3.0 220.0 1.52
111 PANTRY 1 0.9 Jul 1500 89 1.8 95.0 0.94
211 GUEST BEDROOM 1 7.6 Jul 1700 558 7.3 230.0 2.43
212 BATH 1 0.5 Jul 1600 37 0.5 65.0 0.57
213 ENTRY 1 4.6 Jul 1700 363 7.3 265.0 1.37
238 GARAGE 1 2.8 Aug 1500 369 7.4 370.0 1.00
RECEIVED
06/25/2018
Hourly Analysis Program v4.50 icit9SPEf 2
BUILDING DEPARTMENT
Zone Sizing Summary for WHOLE HOUSE
Project Name: 18017-955 Chatfield 05/29/2018
Prepared by:AEC 10:32AM
MANUAL J DESIGN CONDITIONS
WINTER DESIGN CONDITIONS SUMMER DESIGN CONDITIONS
OUTDOOR TEMPERATURE -15 °F OUTDOOR TEMPERATURE 82 °F
INDOOR TEMPERATURE 72 °F INDOOR TEMPERATURE 75 °F
TOTAL HEAT LOSS 85,600 BTU/HR SENSIBLE HEAT GAIN 90,100 BTU/HR
LATENT HEAT GAIN 6,470 BTU/HR
TOTAL HEAT GAIN 96,570 BTU/HR
��0,�ca,P00 REGiST
OO Hu
.� Fp•'_
1.FAO C' <4./
c'SS/ONA�E4( •
•••.....n......''.,
RECEIVED
06/25/2018
Hourly Analysis Program v4.50 AoSii Ni 2
BUILDING DEPARTMENT