Flat Roof Insulation Fixings

Thor Helical flat roof insulation fixings are generally used to fix 6mm plywood-faced composite insulation boards to softwood rafters in warm roof deck applications.  Unlike traditional screws, the Insofast ISF-18 spiral fixings rotate as they are hammered in, inducing a self-tapping corkscrew action.

The quick, easy to use and reliable spiral nails have a large button head mounted on a precision engineered helical shank  The cross sectional area of the profiled 7mm shank is just 10mm2.  This small cross section reduces cold bridging by 75% when compared to a standard fixings of the same diameter.

Flat roof insulation fixings are available in zinc-plated carbon steel.  For improved thermal performance, and additional protection against the corrosion, Thor Helical also supplies a stainless steel version. Stainless steel is 4 times less conductive than carbon steel.

These composite panel fixings supplied in lots of 2000.  They are packed in boxes of 400 and resale bags of 20 pieces