HomeMy WebLinkAboutM_WSEC_Puget Drive Twonhomes_Bldg 3_171005_v1Prescriptive Energy Code Compliance for All Climate Zones in Washington
Project Information Contact Information
This project will use the requirements of the Prescriptive Path below and incorporate the
the minimum values listed. In addition, based on the size of the structure, the appropriate
number of additional credits are checked as chosen by the permit applicant.
Authorized Representative _________________________________________________ Date ___________________________
1. Small Dwelling Unit: 1.5 credits
2. Medium Dwelling Unit: 3.5 credits
3. Large Dwelling Unit: 4.5 credits
4. Additions less than 500 square feet: .5 credits
Option Credit(s)
1a Efficient Building Envelope 1a 0.5
1b Efficient Building Envelope 1b 1.0
1c Efficient Building Envelope 1c 2.0
1d Efficient Building Envelope 1d 0.5
2a Air Leakage Control and Efficient Ventilation 2a 0.5
2b Air Leakage Control and Efficient Ventilation 2b 1.0
2c Air Leakage Control and Efficient Ventilation 2c 1.5
3a High Efficiency HVAC 3a 1.0
3b High Efficiency HVAC 3b 1.0
3c High Efficiency HVAC 3c 1.5
3d High Efficiency HVAC 3d 1.0
4 High Efficiency HVAC Distribution System 1.0
5a Efficient Water Heating 5a 0.5 0.5
5b Efficient Water Heating 5b 1.0 1.0
5c Efficient Water Heating 5c 1.5
5d Efficient Water Heating 5d 0.5
6 Renewable Electric Energy 0.5 *1200 kwh 0.0
Total Credits 1.50
*Please refer to Table R406.2 for complete option descriptions
Slabd R-Value & Depth
49j
21 int
21/21h
30g
10, 2 ft
Ceilingk
Wood Frame Wallg,m,n
Mass Wall R-Valuei
Each dwelling unit in a residential building shall comply with sufficient options from Table R406.2 so as to achieve
the following minimum number of credits:
*Table R402.1.1 and Table R402.1.3 Footnotes included on Page 2.
Dwelling units exceeding 5000 square feet of conditioned floor area.
Description
Table R406.2 Summary
Dwelling units less than 1500 square feet in conditioned floor area with less than 300 square feet of fenestration
area. Additions to existing building that are greater than 500 square feet of heated floor area but less than 1500
square feet.
All dwelling units that are not included in #1 or #3. Exception: Dwelling units serving R-2 occupancies shall
require 2.5 credits.
Puget Drive Apartments
1507 S. Puget Drive Renton WA 98055
AI# 17032
Architectural Innovations
14311 SE 16th Street - Bellevue, WA 98007
(425) 641-5320
All Climate Zones
0.029
0.042
n/a
10/15/21 int + TB
n/a
n/a
n/a
0.056
0.30
0.50
n/a
0.026
0.056
Floor
Below Grade Wallc,m
Glazed Fenestration SHGCb,e
Fenestration U-Factorb
Skylight U-Factor
U-FactoraR-Valuea
Table R402.1.1 Footnotes
For SI: 1 foot .= 304.8 mm, ci .= continuous insulation, int .= intermediate framing.
a R-values are minimums. U-factors and SHGC are maximums. When insulation is installed in a cavity which is
less than the label or design thickness of the insulation, the compressed R-value of the insulation from
Appendix Table A101.4 shall not be less than the R-value specified in the table.
b The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration.
c "10/15/21.+TB" means R-10 continuous insulation on the exterior of the wall, or R-15 on the continuous
insulation on the interior of the wall, or R-21 cavity insulation plus a thermal break between the slab and the
basement wall at the interior of the basement wall. "10/15/21.+TB" shall be permitted to be met with R-13
cavity insulation on the interior of the basement wall plus R-5 continuous insulation on the interior or exterior
of the wall. "10/13" means R-10 continuous insulation on the interior or exterior of the home or R-13 cavity
insulation at the interior of the basement wall. "TB" means thermal break between floor slab and basement
wall.
d R-10 continuous insulation is required under heated slab on grade floors. See R402.2.9.1.
e There are no SHGC requirements in the Marine Zone.
f Reserved.
g Reserved.
h Reserved.
i The second R-value applies when more than half the insulation is on the interior of the mass wall.
j Reserved.
k For single rafter- or joist-vaulted ceilings, the insulation may be reduced to R-38.
l Reserved.
m Int. (intermediate framing) denotes standard framing 16 inches on center with headers insulated with a
minimum of R-10 insulation.
Table R402.1.3 Footnote
a Nonfenestration U-factors shall be obtained from measurement, calculation or an approved source or as
specified in Section R402.1.3.
Simple Heating System Size: Washington State
Project Information Contact Information
Heating System Type:
To see detailed instructions for each section, place your cursor on the word "Instructions".
Design Temperature
Instructions Design Temperature Difference (∆T)46
∆T = Indoor (70 degrees) - Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)1,318
Average Ceiling Height Conditioned Volume
Instructions Average Ceiling Height (ft)9.1 11,967
Glazing and Doors U-Factor X Area =UA
Instructions 0.30 70 20.88
Skylights U-Factor X Area =UA
Instructions 0.50 4 2.00
Insulation
Attic U-Factor X Area =UA
Instructions 0.026 828 21.53
Single Rafter or Joist Vaulted Ceilings U-Factor X Area UA
Instructions ---0 ________
Above Grade Walls (see Figure 1)U-Factor X Area UA
Instructions 0.056 1,856 103.94
Floors U-Factor X Area UA
Instructions 0.025 828 20.70
Below Grade Walls (see Figure 1)U-Factor X Area UA
Instructions ---0 ---
Slab Below Grade (see Figure 1)F-Factor X Length UA
Instructions ---0 ________
Slab on Grade (see Figure 1)F-Factor X Length UA
Instructions ---0 ________
Location of Ducts
Instructions Duct Leakage Coefficient
1.10
Sum of UA 169.04
Envelope Heat Load 7,776 Btu / Hour
Sum of UA X ∆T
Air Leakage Heat Load 5,945 Btu / Hour
Volume X 0.6 X ∆T X .018
Building Design Heat Load 13,721 Btu / Hour
Air Leakage + Envelope Heat Loss
Building and Duct Heat Load 15,093 Btu / Hour
Ducts in unconditioned space: Sum of Building Heat Loss X 1.10
Ducts in conditioned space: Sum of Building Heat Loss X 1
Maximum Heat Equipment Output 21,131 Btu / Hour
Building and Duct Heat Loss X 1.40 for Forced Air Furnace
Building and Duct Heat Loss X 1.25 for Heat Pump
This heating system sizing calculator is based on the Prescriptive Requirements of the 2015 Washington State Energy Code (WSEC) and ACCA Manuals
J and S. This calculator will calculate heating loads only. ACCA procedures for sizing cooling systems should be used to determine cooling loads.
The glazing (window) and door portion of this calculator assumes the installed glazing and door products have an area weighted average U-factor of 0.30.
The incorporated insulation requirements are the minimum prescriptive amounts specified by the 2015 WSEC.
Please fill out all of the green drop-downs and boxes that are applicable to your project. As you make selections in the drop-downs for each section, some
values will be calculated for you. If you do not see the selection you need in the drop-down options, please call the WSU Energy Extension Program at
(360) 956-2042 for assistance.
Puget Drive Apartments single unit
1507 S. Puget Drive Renton WA 98055
AI # 17032
Architectural Innovations, P.S.
14311 SE 16th Street, Bellevue WA 98007
425 641-5320
Above Grade
Below Grade
Figure 1.
All Other Systems Heat Pump
(07/01/13)
Window, Skylight and Door Schedule
Project Information Contact Information
Width Height
Ref.U-factor Qt.Feet Inch Feet Inch Area UA
Exempt Swinging Door (24 sq. ft. max.)Simp 0.28 1 3 6 8 20.0 5.60
0.0 0.00
Vertical Fenestration (Windows and doors)
Component Width Height
Description Ref.U-factor Qt.Feet Inch Feet Inch Area UA
Milg 0.28 2 5 5 50.0 14.00
Milg 0.28 1 5 4 9 23.8 6.65
Milg 0.28 1 5 5 25.0 7.00
Milg 0.28 2 2 5 20.0 5.60
Simp 0.28 1 2 8 6 8 17.8 4.98
0.0 0.00
0.0 0.00
0.0 0.00
Milg 0.28 1 2 4 8.0 2.24
Milg 0.28 2 2 2 8.0 2.24
Milg 0.28 1 5 4 20.0 5.60
Milg 0.28 2 2 2 8.0 2.24
Milg 0.28 1 5 4 20.0 5.60
Milg 0.28 1 2 4 8.0 2.24
Milg 0.28 1 5 4 20.0 5.60
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
Exempt Glazed Fenestration (15 sq. ft. max.)
A5 Bedroom #2
A5 Bedroom #3
A5 Master Bath
A5 master Bedroom
A5 Master Bedroom
A5 Bath
A5 Bedroom #2
A3 Great Room
A3 Garage Man Door
Puget Architectural Innovations, P.S.
1507 S. Puget Drive Renton WA 98055 14311 SE 16th Street, Bellevue WA 98007
AI # 17032 425 641-5320
A3 Dining Room
A3 Kitchen
A3 Great Room
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
Sum of Vertical Fenestration Area and UA 228.5 63.99
Vertical Fenestration Area Weighted U = UA/Area 0.28
Overhead Glazing (Skylights)
Component Width Height
Description Ref.U-factor Qt.Feet Inch Feet Inch Area UA
Milg 0.50 1 2 2 4.0 2.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
0.0 0.00
Sum of Overhead Glazing Area and UA 4.0 2.00
Overhead Glazing Area Weighted U = UA/Area 0.50
252.5 71.59Total Sum of Fenestration Area and UA (for heating system sizing calculations)
A5 Stairwell