Why do Kingspan TEK SIP’s have better (higher) R-values than conventional framing?
The 112 mm CFC/HCFC-free rigid urethane core has extremely good insulation value and does not allow movement of air within the wall. It will not sag or physically deteriorate over time unlike many conventional insulating materials.
The Kingspan TEK SIP’s create a very tight structure with little opportunity for air leakage.
Consider also that well over 630 mm out of every 10m of wall (15.9%) in a conventional framed house is not protected by insulation due to the timber frame components.
The SIP’s technology, upon which the Kingspan TEK Building System is based, means the insulation layer is not interrupted by studwork and therefore there is less thermal bridging and a better thermal resistance. There are, however, some bridges where timbers are used to support point loads etc.
Also, the 112 mm CFC/HCFC-free rigid urethane insulation core does not allow movement of air within the wall and will not sag over time unlike many other insulating materials. Applying expanding uret
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