FLASHINGS

Fabricated to order from flat steel sheets, available in the full range of gauges and finishes to match or contrast with roof and wall systems.

In order to ensure a weather tight seal and a good appearance to the building, attention should be given to the correct design detail. Flashings are normally manufactured in the same material and thickness as the cladding but should always be a minimum of 0.70mm thick. Where the leg length of a flashing exceeds 200mm, it will be difficult to maintain a flat appearance and it is advisable to introduce a bend or stiffer to straighten and strengthen the material. Exposed edges should be stiffened in the same way using one of the details shown.

Most flashings used on roofs are 'open' and can be lapped, typically including sealant and stitching fastener at a maximum spacing of 100mm. However 'closed' sections such as eaves gutters use butt straps behind the joint. These should be at least 150mm long.

Some typical flashing details are illustrated. However, all our flashings are custom made to meet the requirements of individual contracts. Orders for flashings should include fully dimensioned sketches of the sections required. Standard lengths are 3.0 metres.