Applications & Installations > over purlin insulation

ISOBOARD Over Purlin Insulation In Australia, the bulk of retail and industrial buildings are 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. Typical uses for ISOBOARD® in this application: Industrial developments to improve staff comfort and productivity. Agricultural applications such as poultry, pig, mushroom, and fish farming requiring consistent optimum growth conditions, and emperature-controlled environments such as vegetable, flower and fruit processing areas and wine cellars. Warehouses containing perishable and temperature sensitive goods. Retail developments to provide comfort and reduce air conditioning costs. Site Handling Instructions Handle and install with care to prevent damage to board edges. Store boards flat within original packaging until required. Boards are to be protected from adverse weather conditions and direct sunlight for the storage period. In potentially dusty conditions during construction or after, boards are to be wiped clean with a weak softened water solution immediately prior to over purlin installation, to remove possible static charges present on the board surface. Please contact ISOBOARD® for any queries with respect to the above. ISOBOARD® is readily cut to length on site using a sharp blade or hacksaw. Application Guide The recommended over purlin under roof sheet installation method for ISOBOARD®. Wipe boards clean with a softened water solution immediately prior to installation. This removes any static charges built up during the transport and handling of the board, preventing dust particles from adhering to the board. Boards are laid from apex to eave, always beginning and ending on a purlin. Where necessary, boards are to be butt-joined centrally over purlins, with a 5mm expansion gap between boards. Note: Butt-joined boards may not align. Longitudinal jointing is effected using the tongue and groove edge profile,enabling the boards to be locked together tightly. Fix roofsheet concurrently with ISOBOARD® so that ISOBOARD® is secured positively between purlins and roofsheets, using roof screws. ISOBOARD® can be supported using aluminium T-sections, should purlin spacings exceed the recommended maximum. Profiled roofing closers or cover strips should be used, if damage by birds etc. to exposed board ends can be expected.

Schematics Please refer to the figures below to see the detail on the schematics.