Corrugate comes from the Latin corrugat, meaning “wrinkled”. It is those wrinkles that make corrugated sheets viable for use as roofing sheets. The wrinkled profile will allow water to drain off the sides of the sheets without being affected by capillary action.These make corrugated sheets a popular roofing choice. They are better for buildings larger than those you’d use shed felt for, but smaller than houses – like garages or barns.
The material that the sheets are made out of will massively change what they are suitable for. Sheet materials can cause both their rigidity and opacity to vary massively. While some materials can be more costly they are also often more durable.
Impregnated-bitumen board sheets are the most cost-effective corrugated sheet solution. The bitumen makes them waterproof and they are also available in a variety of appealing colours.
Fibreglass, or GRP (glass reinforced plastic) is a popular choice for corrugated sheets due to its waterproof nature and durability.
Polyvinyl chloride or PVC is a solid mid-grade sheeting option. A resilient and doughty but not-too-expensive plastic, it is ideal for budding DIYers trying to get to grips with small roofing projects for the first time.
These are the top-shelf option when it comes to corrugated sheets. Plastic resin combines excellent strength and durability with a very low weight. The Corrapol Stormroof sheets by Clear Amber are particularly impressive since they are very long-lasting and UV resistant on top of everything else.