Yes — roof insulation is fully integrated into every Expandify home.

Our roofing system uses a 75mm-thick rockwool-filled steel sandwich panel. This material provides exceptional thermal and acoustic performance while also meeting BAL 12.5 compliance standards for bushfire protection.

The roof panel serves multiple purposes:

• Acts as the structural roof component
• Provides full insulation coverage
• Delivers weatherproofing and thermal regulation

Expandify ceiling is a separate layer that is also made of 75mm rockwool sheeting giving you two layers of rockwool and a total of 150mm of insulation above.

Unlike traditional homes that require separate batts or bulk insulation, the Expandify system incorporates everything into a single, prefabricated insulated roof panel. No additional roof insulation is required.