HomeMy WebLinkAboutFile Documents.621 W Francis St.0008-2021-BRES (16) 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
April 30, 2021
Will Otte
Rowland + Broughton
1830 Blake St.
Denver, CO 80202
Re: Shuford Residence Garage
Will,
This document is intended to show compliance of the new construction garage located at 621 W. Francis
St. in Aspen, CO with the 2015 International Energy Conservation Code (2015 IECC). We propose to use
a prescriptive approach per sections R402.1-R402.3 and R403.2.1 of the 2015 IECC.
The project is a new garage built on an existing foundation with a total floor area of 803 sf. For heat
load calculations, please refer to the following pages of this document. 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
in climate zone (7). All new assemblies will meet the following requirements.
Fenestration
U-factor
Skylight
U-factor
Ceiling
R-value
Wood frame
wall U-value
Floor
R-value
Basement
wall R-value
Slab
R-value
Code
Minimums
0.28 (1) 0.55 49 0.045 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 wall. Can be satisfied with R-13 cavity plus R-5 continuous.
4) Existing slab to remain
Sincerely,
Mark Sorensen
05/09/2021
8/12/21
MCG/DAM
Zone Sizing Summary for Garage
Project Name: 20075 - 621 W Francis St 04/30/2021
Prepared by: AEC 02:45PM
Air System Information
Air System Name Garage
Equipment Class UNDEF
Air System Type SZCAV
Number of zones 1
Floor Area 750.0 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 11.0 1068 1068 Jul 1600 19.9 750.0 1.42
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
110 - GARAGE 1 4.3 Jul 1600 569 13.7 435.0 1.31
206 - GARAGE BED 1 5.5 Aug 1500 407 5.4 280.0 1.45
207 - GARAGE BATH 1 1.3 Jul 1700 93 0.9 35.0 2.65
Hourly Analysis Program v4.50 Page 1 of 1
05/09/2021
8/12/21
MCG/DAM
OUTDOOR TEMPERATURE -15 °F OUTDOOR TEMPERATURE 88 °F
INDOOR TEMPERATURE 70 °F INDOOR TEMPERATURE 75 °F
TOTAL HEAT LOSS 19,949 BTU/HR SENSIBLE HEAT GAIN 11,108 BTU/HR
LATENT HEAT GAIN 13 BTU/HR
TOTAL HEAT GAIN 11,121 BTU/HR
MANUAL J DESIGN CONDITIONS
WINTER DESIGN CONDITIONS SUMMER DESIGN CONDITIONS
05/09/2021