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The Firestone RESISTA AK insulation board consists of a closed-cell polyiso foam core laminated on both sides to a gastight multi-layered aluminium complex providing a high thermal resistance, which can translate into significant energy savings. The foam technology does not contribute to the depletion of the ozone layer (zero ODP) and uses a HCFC-free blowing agent with a Global Warming Potential (GWP) of less than 5.

RESISTA AK provides outstanding and stable thermal resistance, dimensional stability and compressive strength, which translates into a complete flat roof solution with long lasting superior performance. It is suitable for use on adhered, ballasted and mechanically fastened Firestone single-ply roofing systems (UltraPly TPO, RubberGard EPDM and RubberCover EPDM).