Polycarbonate roofs

Polycarbonate roofing is available in a wide range of colours and is available in single or double-skin/multiwall construction. Fibreglass is considered equivalent to polycarbonate.

Manufacturers can provide the Shading Coefficient (similar to Solar Heat Gain Coefficient but calculated in a different way) for their products.

If you select a more transparent polycarbonate roof with a Shading Coefficient more than 0.4 then BASIX requires you to install shading. BASIX recognises the following types of shading:

  • external fixed awning or blind;
  • external adjustable awning or blind;
  • external fixed louvre; and
  • external adjustable louvre.