REVIEWED BLD BLD2020-1129+WSEC+10.21.2020_1.39.13_PMTable 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.
"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.
'The second R-value applies when more than half the insulation is on the interior of the mass wall.
Reserved.
k For single rafter- or joist -vaulted ceilings, the insulation may be reduced to R-38.
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.
III
Mike Johnson Nash & Asso Architects
Plan 3010
425 242-7490
Crawl Access Door
michael@Nash-Architects.com
0.30 1
6
6
6
8
Entry Door
0.30 1
3
0
8
0
Slider
0.30 2
0.30 2
0.30 1
0.30 3
6
3
3
3
°
0
0
0
5
5
5
2
0
0
0
°
Casement
Picture
Picture
Picture
0.30 2
2
0
5
°
Sliding Glass Door
0.30 1
12
0
8
0
Sliding Glass Door
0.30 1
18
10
8
0
Entry Door
0.30 1
3
0
8
0
Door
0.30 1
2
8
6
8
Sidelite
0.30 1
1
6
5
0
Slider
0.30 1
6
0
5
0
Picture
0.30 2
0.30 1
2
16
0
10
2
12
0
0
Picture
Picture
0.30 2
0.30 1
3
7
0
0
5
5
0
0
Picture
Picture
0.30 2
0.30 1
3
7
0
0
2
2
0
0
Slider
Picture
0.30 1
3
0
4
0
Picture
0.30 2
0.30 2
0.30 1
2
2
4
6
0
0
5
2
5
°
°
0
Picture
Slider
Single Hung
0.30 1
2
0
4
°
bimme Heatlna bmem Size: wasnlnaton state
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.
Project Information Contact Information
Mike Johnson @ Nash & Asso Architects
Plan 3010 Jk (425) 242-7490
michael@Nash-Architects.com 10
Heating System Type: OO All other Systems O Heat Pump
To see detailed instructions for each section, place your cursor on the word 'Instructions".
Design Temperature
Instructions Design Temperature Difference (AT)
Edmonds AT = Indoor (70 degrees) - Outdoor Design Temp
Area of Building
Conditioned Floor Area
Instructions Conditioned Floor Area (sq ft)
3,010
Average Ceiling Height
Conditioned Volume
Instructions Average Ceiling Height (ft)
9.0
27,090
Glazina and Doors
U-Factor
X Area =
UA
Instructions
0.30
190.20
634
Skylights
U-Factor
X Area =
UA
Instructions
0.50
Insulation
Attic
U-Factor
X Area =
UA
Instructions R-49
Noll
0.026
1,791
46.57
Single Rafter or Joist Vaulted Ceilings
U-Factor
X Area
UA
Instructions
No Vaulted Ceilings in this project.
�
� ---
Above Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions
0.056
1,200
67.20
R-21 Intermediate
�
Floors
U-Factor
X Area
UA
Instructions
0.029
430
12.47
R-30
�
Below Grade Walls (see Figure 1)
U-Factor
X Area
UA
Instructions
0.042
450
18.90
R-21 Interior
�
Slab Below Grade (see Figure n
F-Factor
X Length
UA
Instructions
L No Slab Below Grade in this project.
Slab on Grade (see Figure n
F-Factor
X Length
UA
Instructions
0.540
1,219
658.26
R-10 Perimeter
�
Location of Ducts
Instructions
Duct Leakage Coefficient
Unconditioned Space
1.10
Sum of UA
993.60
Figure 1.
Above Grade
46
Envelope Heat Load
45,705
Btu / Hour
Sum of UA X AT
Air Leakage Heat Load
13,458
Btu/Hour
VolumeX 0.6XATX.018
Building Design Heat Load
59,164
Btu/Hour
Air Leakage + Envelope Heat Loss
Building and Duct Heat Load
65,080
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
91,112
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
(07101113)