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Performance Related Specification Reference Table

Passive House PHI Low Energy Building Healthy Home Minimum NZBC Minimum
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