3153-3 Credit Prescriptive Energy Code Compliance for All Climate Zones in Washington
Project Information Contact Information
PLAN#3153-3 LOT 28 EVERGREEN STATE BUILDER
JENSEN DR SE JEFF KELLY
YELM, WA 98439 253-255-1616
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
All Climate Zones
R-Value a U-Factor a
Fenestration U-Factor b n/a 0.30
Skylight U-Factor n/a 0.50
Glazed Fenestration SHGCbe n/a n/a
Ceiling 49' 0.026
Wood Frame Wall 9 k 21 int 0.056
Mass Wall R-Value' 21/21h 0.056
Floor 309 0.029
Below Grade Wall,,k 10/15/21 int+TB 0.042
Slab R-Value& Depth 10, 2 ft n/a
*Table R402.1.1 and Table R402.1.3 Footnotes included on Page 2.
Each dwelling unit in one and two-family dwellings and townhouses,as defined in Section 101.2 of the
International Residential Code shall comply with sufficient options from Table R406.2 so as to achieve the
following minimum number of credits:
❑1.Small Dwelling Unit: 0.5 points
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 less than 750 square feet of heated floor area.
❑2. Medium Dwelling Unit: 1.5 points
All dwelling units that are not included in#1 or#3, including additions over 750 square feet.
❑3. Large Dwelling Unit: 2.5 points
Dwelling units exceeding 5000 square feet of conditioned floor area.
Table R406.2 Summary
Option Description Credit(s)
1a JEfficient Building Envelope 1a 0.5 ❑
lb Efficient Building Envelope lb 1.0 ❑
1c Efficient Building Envelope 1c 2.0 ❑
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 0.5 ❑
3b High Efficiency HVAC 3b 1.0 ❑
3c High Efficiency HVAC 3c 2.0 ❑
3d High Efficiency HVAC 3d 1.0 ❑
4 High Efficiency HVAC Distribution System 1.0 ❑
5a Efficient Water Heating 0.5 ❑
5b Efficient Water Heating 1.5 0 1.5
6 Renewable Electric Energy 0.5 *1200 kwh 0.0
Total Credits 1.50
*Rease refer to Table 8406.2 for complete option descriptions
http://www.energy.wsu.edu/Documents/2012°/`2OFbs°/`2OEnergy.pdf
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For9: 1 foot .=304.8mm,ci .=continuousinsulat ion, int .=intermediate framing.
ARvalues are minimums. U-factors and J-IGC are maximums.When insulation is installed in a cavity which is
Iessthan the label or design thickness of the insulation,the compressed Rvalue of the insulation from
Appendix Table A101.4shalI not be less than the Rvalue specified in the table.
LThe fenestration U-factor column excludes skylights.The J-IGCcolumn applies to all glazed fenestration.
Exception: Skylights maybe excluded from glazed fenestration J-IGCrequirementsin aimateZones 1
through 3 where the J-IGCfor such skylights does not exceed 0.30.
1'"10/15/21.+TB" means R-10 continuous insulation on the exterior of the wall, or R-1 5 on the continuous
insulation on the interior of the wall, or 821 cavity insulation plus athermal 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-1 3
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" meansthermal break between floor slab and
basement wall.
r R-10 continuous insulation is required under heated slab on grade floors. Sae 8402.2.9.1.
e There are no J-IGCrequirements in the Marine Zone.
f Basement wall insulation is not required in warm-humid locationsas defined by Figure 8301.1 and Table
8301.1.
9 Fbserved.
" First value is cavity insulation,second iscontinuous insulation or insulated siding, so"13.+5" means R-1 3
cavity insulation plus R5 continuous insulation or insulated siding. If structural sheathing covers 40 percent
or less of the exterior, continuous insulation Rvalue shall be permitted to be reduced by no more than R-3 in
the locations where structural sheathing is used to maintain a consistent total sheathing thickness.
'The second Rvalue applies when more than half the insulation is on the interior of the mass wall.
Ior single rafter-or joist-vaulted ceilings,the insulation may be reduced to 838.
4Int. (intermediate framing)denotes standard framing 16 inches on center with headers i nsulated with a
minimum of R-10 insulation.
Zog and solid timber wallswith a minimum average thicknessof 3.5 inches are exempt from this insulation
requirement.
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ANonfenestration U-factorsshall be obtained from measurement, calculation or an approved source or as
specified in Saction 8402.1.3.