A corrugated sheet is a thin sheet with a wavy or profiled surface, which that profiling makes far stiffer and stronger than a flat sheet of the same material. Corrugated sheets are mainly used as light roof and wall cladding.
Application
Thanks to the corrugation, a sheet can span greater distances and still carry load. Materials:
- Steel and aluminium — galvanised or coated, widely used on sheds, barns and industrial halls.
- Fibre cement — strong and fire-resistant; older sheets could contain asbestos.
- Bitumen — light and affordable, for garden houses and sheds.
- Plastic (PVC, polycarbonate) — translucent, for rooflights and canopies.
Corrugated sheets are laid overlapping and fixed to battens or purlins with special screws or hooks with a sealing washer. The corrugations run down the slope so rainwater drains along the troughs. Benefits are the low weight and quick installation; a point of attention is condensation on the underside of metal sheets.
Related terms
- Roofing
- Cladding
- Purlin
- Tile-profile sheet
- Fibre cement
Want to know more about construction terms? Visit our knowledge base on fredsdiyplans.com.