3611 FEDERAL AVE 2018-01-02 MF Import

WASHINGTON STATE ENERGY CODE C (00/ ) / TABLE 6-2 PRESCRIPTIVE REQUIREMENTS' FOR GROUP R OCCUPANCY CLIMATE ZONE 1 • HEATING BY OTHER FUELS tOption HVAC' Equip. Effie. Glazing Area": % of Floor Glazing U-Factor Door 10 U-Factor Ceiling' Vaulted Ceiling' Wall Above Grade Wall* into Below Grade Wall* ext' Below Grade Floor' Slab° on Grade Vertical Overhead = I 1. Med. 10% 0.70 0.68 0.40 R-30 R-30 R-15 R-15 R-10 R-19 R-10 IL Med. 12% 0.65 0.68 0.40 R-30 R-30 R-15 R-15 R-10 R-19 R-10 111. HiRb 21% 1 0.75 0.68 0.40 R-30 R-30 R-19 R-19 R-10 R-19 R-10 Med. 21% 0.65 0.68 0.40 R-30 R-30 R-19 R-19 R-10 R-19 R-10 Low 21% 0.60 0.68 0.40 R-30 R-30 R-19 R-l9 R-10 R-19 R-10 Lviiiiiii, Med. 25% 0.457 0.68 0.40 R-38 R-30 R-19R-19 R-10 R-25 R-10 Mod. 30% 0.46' 0.66 0.40 R-30 A-30 R-19 R-19 R-10 R-25 R-10 Mod. unlimited 0.25 3.40 0.40 R-30 R-30 R-19 R-19 R-10 R-25 I R-10 + Reference Case 1. Minimum requirements for each option listed. For example, if a proposed design has a glazing ratio to the conditioned floor area of 19 %, it shall comply with all of the requirements of the 21 % glazing option (or higher). Proposed designs which cannot meet the specific requirements of a listed option above may calculate compliance by Chapters 4 or 5 of this Code. 2. Requirement applies to all ceilings except single rafter or joist vaulted ceilings. 'Adv' denotes Advanced Framed Ceiling. 3. Requirement applicable only to single rafter or joist vaulted ceilings. 4. Below grade walls shall be insulated either on the exterior to a minimum level of R-10, or on the interior to the same level as walls above grade. Exterior insulation installed on below grade walls shall be a water resistant material, manufactured for its intended use, and ins alled according to the manufactures s specifications. See Section 602.2. 5. Floors over crawl spaces or exposed to ambient air conditions. 6. Required slab perimeter insulation shall be a water resistant material, manufactured for its intended use, and installed according to manufacturer's specifications. See S wtion 602.4. 7. The following options shall be applicable to buildings less than three stories: 0.50 maximum for glazing areas of 25 5% or less; 0.45 maximum for glazing areas of 30% or less. 8. This wall insulation requirement denotes R-19 wall cavity insulation plus R-5 foam sheathing. 9. Minimum HVAC equipment efficiency requirement. 'Low' denotes an AFUE of 0.74. 'Mod.' denotes an AFUE of 0.78. 'High' denotes an AFUE of 0.88. Minimum HVAC equipment efficiency requirement for heat pumps. 'Low' denotes an HSPF of 6.35, 'Med.' denotes an HSPF of 6.8. 'High' an HSPF of 7.7. Water and ground source heat pumps shall be considered as medium efficiency and have a minimum COP as required in Table 5-7. 10. Doors, including all fire doors, shall be assigned default U-factors from Table 10-6C or 10.6D. 11. Where a maximum glazing area is listed, the total glazing area (combined vertical plus overhead) as a percent of gross conditioned Floor area shall be less than or equal to that value. Overhead glazing with U-factor of U=0.40 or less is not included in glazing area limitations. 12. Overhead glazing shall have U-factors determined in accordance with NFRC 100 or as specified in Section 502.1.5. 36 Effective 7/01/98