Expandify homes use a high-performance, multi-layered wall system engineered for strength, energy efficiency, and compliance with BAL 12.5 standards.

Each wall includes:

• External metal cladding (low-maintenance and weather-resistant)
• A fire-proof foil breathable membrane for vapour control and passive ventilation
• 100mm rockwool insulation core SIP (Structural Insulated Panel)
• Internal metal frame system for rigidity and service cavities

This layered construction provides superior thermal regulation, sound dampening, and fire resistance.

This wall composition is used for both internal and external walls, creating a consistent, durable, and fire-conscious structure across the entire home.