Technical

Technical Details


SIPs Technical Bulletins

We are members of the respected Structural Timber Association (STA) who have produced a number of independent technical papers that cover all aspects of Structural Insulated Panels (SIPs).

High performance membranes

External Walls


Protect TF200 Thermo is a high performance breather membrane with high tear strength, weather resistance and vapour permeability. 
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Roof


Protect VP400 is a high performance vapour permeable roofing underlay for use in warm or cold pitched roof constructions.
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Roof structure 

Habitable roof trusses


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