How energy efficient are Kingspan TEK s SIP's?
Thermal conductivity of the CFC/HCFC-free rigid urethane core is 0.023 W/m.K, with 0.14 W/m.K for the OSB 3, meaning each panel has an R-value of 5.1 m2.K/W. The total wall thickness of the Kingspan TEK Building System, including the external weather protection, can be as little as 194 mm. This is the approximate equivalent in thermal performance, of 405 mm in masonry or 448 mm in timber frame.
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