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What are Warmup Insulation Board made from?

Warmup® Insulation Boards are made of waterproof extruded polystyrene with a glassfibre mesh embedded on each face, onto a cement polymer adhesive.

The boards are fully waterproof, preventing any water to pass through them in the way expanded polystyrene boards do. They are lightweight, easy to cut with a knife and install onto any surface. Being free of harmful asbestos, they pose no health or safety risks and are unaffected by the freeze/ thaw cycle.