1223 LOMBARD AVE 2025-01-24 - Laserfiche WebLink

Table 406.2 Energy Credits (2015 Code) OPTION DESCRIPTION CREDITS) Estimated Cost l a EFFICIENT BUILDING ENVELOPE la: 0.5 Prescriptive compliance is based on Table R402.1.1 with the following modifications: Vertical fenestration U 0.28 Floor R-38 Slab on grade R-10 perimeter and under entire slab Below grade slab R-10 perimeter and under entire slab or Compliance based on Section R402.1.4: Reduce the Total UA by 5%. l b EFFICIENT BUILDING ENVELOPE lb: 1.0 Prescriptive compliance is based on Table R402.1.1 with the following modifications: Vertical fenestration U =0.25 Wall R-21 plus R-4 Floor R 38 Basement wall R-21 int plus R-5 ci Slab on grade R-10 perimeter and under entire slab Below grade slab R-I0 perimeter and under entire slab or Compliance based on Section R402.1.4: Reduce the Total UA by 15%. I c EFFICIENT BUILDING ENVELOPE 1 c: 2.0 Prescriptive compliance is based on Table R402.1.1 with the following modifications: Vertical fenestration U =0.22 Ceiling and single-rafter or joist-vaulted R-49 advanced Wood frame wall R-21 int plus R-12 ci Floor R-38 Basement wall R-21 int plus R-12 ci Slab on grade R-10 perimeter and under entire slab Below grade slab R-10 perimeter and under entire slab or Compliance based on Section R402.1.4: Reduce the Total UA by 30%. I d' EFFICIENT BUILDING ENVELOPE Id: 0.5 Prescriptive compliance is based on Table R402.1.1 with the following modifications: Vertical fenestration U=0.24 2a AIR LEAKAGE CONTROL AND EFFICIENT VENTILATION 2a: 0.5 Compliance based on R402.4.12: Reduce the tested air leakage to 3.0 air changes per hour maximum and All whole house ventilation requirements as determined by Section M1507.3 of the • International Residential Code shall be met with a high efficiency fan(maximum 0.35 warts/cfm),not interlocked with the furnace fan_Ventilation systems using a furnace including an ECM motor are allowed,provided that they are controlled to operate at low speed in ventilation only mode. To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the maximum tested building air leakage and shall show the qualifying ventilation system. 2b AIR LEAKAGE CONTROL AND EFFICIENT VENTILATION 2b: 1.0 Compliance based on Section R402.4.12: Reduce the tested air leakage to 2.0 air changes per hour maximum and All whole house ventilation requirements as determined by Section MI507.3 of the International Residential Code shall be met with a heat recovery ventilation system with minimum sensible heat recovery efficiency of 0.70_ To qualify to claim this credit,the building permit drawings shall specify the option being selected and shall specify the maximum tested building air leakage and shall show the heat recovery ventilation system.