ThermocousTex™ Concealed Fix Roof Sheeting installation instructions over Purlin. Step by step insulation.
IsoBoard Insulation installed over purlin under roof sheet. — In South Africa, the bulk of retail and industrial buildings are steel-sheet clad frames, where 70% of the heat gain is through the roof. IsoBoard over purlin insulation is the most cost effective method of achieving thermal efficiency in these buildings.