Performance Related Specification Reference Table
Passive House | PHI Low Energy Building | Healthy Home Minimum | NZBC Minimum |
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Floor | R6.8 190+90mm counter insulated floor framing |
R4.6 210mm between floor framing |
R3.8 190mm batt between floor framing |
Max. R1-1.3 50mm batt between floor framing |
Wall | R4.5 140+45mm counter insulated wall framing |
R3.4 90+45mm counter insulated wall framing |
R5 140mm insulated wall framing |
R2 90mm insulated framing |
Roof | R7.5 210+90mm counter insulated roof framing |
R5.2 210mm insulated roof framing |
R5 210mm insulated roof framing |
R5 210mm batt between/rafter |
Windows | Ave. R1.2 Triple low-e glazing on timber alu composite frame |
Ave. R1.1 Triple low-e glazing on timber alu composite frame |
Ave. R0.5 Double low-e Xcel glazing on recessed thermally broken frame |
Ave. R0.26 Standard double glazing on aluminium frame |
Airtightness | 0.5 ACH under blower door test (air/vapour control layer) | 1 ACH under blower door test (air/vapour control layer) | 4 ACH under blower door test (no air/vapour control layer) | Approx. 6 ACH under blower door test |
Ventilation | Up to 95% heat recovery | Up to 72% heat recovery | Up to 72% heat recovery | Opening window only |