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Table 40.62: <br /> Energy Credits (2015 Code) <br /> OPTION DESCRIPTION CREDIT(S) Estimated Cost <br /> la EFFICIENT BUILDING ENVELOPE la: 0.5 <br /> Prescriptive compliance is based on Table R402.1.1 with the following modifications: <br /> Verticatfenestration U =0.28 <br /> Moor R-3,8, <br /> Slab on grade R-10 perimeter and under entireslab <br /> Below grade slab R-10 perimeter and under entire slab <br /> or <br /> Compliance based on Section R402.1.4: Reduce the Total UA by 5%. <br /> lb EFFICIENT BUILDING ENVELOPE lb: 1.0 <br /> Prescriptive compliance is based on Table R402.1.1 with the following modifications: <br /> Vertical:fenestration U =0.25 <br /> Wall°R-21 pins R-4 <br /> for R-38,. <br /> Basement wall R-21 int.plus R-5 ci <br /> Slab on grade R-10 perimeter and under entire slab <br /> Below grade slab R-10 perimeter and under entire slab <br /> or <br /> Compliance based on Section R402.1.4: Reduce the Total UA by 15%. <br /> lc EFFICIENT BUILDING ENVELOPE lc: 2.0 <br /> Prescriptive compliance is:basedon +1e R402.1.1 with the fallowing modifications: <br /> Vertical fenestration l_Y =0:22 <br /> Ceiling.and single-rafter or joist vaulted R-.49 advanced <br /> Wood frame wall R21 int plus R-12 ci <br /> Floor R-38 <br /> Basement wall R-21 int plus R-12 ci <br /> Slab on grade R-10 perimeter and under entire slab <br /> Below grade slab R-10 perimeter and under entire slab <br /> or <br /> Coumplianceloaseda nSec ionR4011.4. ;Reduce't'he TOtal11A15,30%. <br /> Ida ELUENT BUILDING ENVELOPE I d: 0.5 <br /> Prescriptive compliance is.'based onTable R402.1.1 with the following modifications: <br /> Vertical fenestrataon,U—0.24. <br /> 2a AIR LEAKAGE CONTROL AND EFFICIENT VENTILATION 2a: 0.5 <br /> Compliance based on R402.4.1.2: Reduce the tested air leakage to 3.0 air changes per <br /> hour maximum <br /> and <br /> All whole house ventilation requirements as determined by Section M1507.3 of the <br /> peter'ncrtianelResidential'Cod'e shall be met with a high efficiency fan(maximum 0:35 <br /> watts/cfinf,,not interlocked with the furnace fan`.Ventilation systems.using a furnace <br /> includingian ECM:motor,are allowed,provided that they are controlled to.operate;at <br /> low speed ori"ventilation only mode. <br /> To qualify to claim this credit,the building permit drawings shall specify the option <br /> being selected and shall specify the maximum tested building air leakage and shall <br /> show the qualifying ventilation system. <br /> 21) AIR LEAKAGE CONTROL AND EFFICIENT VENTILATION 2b: 1.0 <br /> Compliance based on Section R402.4.1.2: Reduce the tested air leakage to 2.0 air <br /> 'changes per hour maxi num <br /> All whole house ventilation requirements as determined by Section M1507.3 of the <br /> International Residential Code shall be met with a heat recovery ventilation system <br /> with minimum sensible heat recovery efficiency of 0.70. <br /> To qualify to claim this credit,the building permit drawings shall specify the option <br /> being selected and shall specify the maximum tested building air leakage and shall <br /> show the heat recovery ventilation system. <br />