The house also has a strong materiality externally, with a singular cladding and roofing material of warm cedar shingles, which has the added benefit of being low maintenance. As the house faces the street, glazing is restrained and aimed towards views to the west of Mt Roy. SIPs are taped, sealed and wrapped in a secondary layer of building wrap plus plywood to maximise thermal efficiency. The house and the areas of glazing are orientated to maximise solar gain, with minimal openings on the remaining sides of the house to preserve the thermal envelope.

Windows are double glazed low-e glass, argon filled and thermally broken to prevent moisture retention and heat loss.