As our design is coming together under our structural engineer, I thought I should explain how and why we chose SIP walls and a residential "flat" roof design. They are mostly because of cost-effective and energy efficient reasons, and I'll explain why in layman's terms.
First, SIPs are a composite building material. They consist of a sandwich of two layers of structural board with an insulating layer of foam in between. The board is usually Oriented Strand Board (OSB) and the foam either expanded polystyrene foam(EPS), extruded polystyrene foam (XPS) or polyurethane foam.... READ MORE on sjodindreamhome.blogspot.com
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