Foil Batts

Aluminium foil insulation roof sarking is frequently non-existent or omitted in residential buildings,mainly with tile roofs.

Historically, roll foil insulation is double-sided but not for thermal reasons - rather it is for waterproofness and strength.

Aluminium surfaces with adjoining airspaces are powerful radiation barriers, reflecting 97% and emitting 3% of all radiant heat and one surface operating produces the majority of performance.

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