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13-343 Village Hill Flats West Unit W3-n - FINAL IECCLabel092009 IECC Certificate 74 Village Hill Rd - W3n, Northampton, MA 01060 Building Envelope Insulation Ceiling R-80.0 Above Grade Walls R-32.0 Foundation Walls NA Exposed Floor NA Slab None Infiltration Htg: 940 Clg: 940 CFM50 Duct NA Duct Leakage to Outside NA Window Data U-Factor SHGC Window 0.210 0.220 Mechanical Equipment ASHP: Electric, Htg: 11.3 HSPF. Clg: 19.1 SEER. DHW: Instant water heater, Natural gas, 0.94 EF, 0.0 Gal. Builder or Design Professional Signature REM/Rate - Residential Energy Analysis and Rating Software v14.6.1