Frequently Asked Questions

Traditionally our roofing products are overlapped by one profile. This is on both the Box Profile and 3” Corrugated. They can be overlapped another profile but this means that more sheets will be required to cover the area.

The 32/1000 Box Profile is fixed on the flat of the sheet known as the trough. Normally through the middle between the two ribs. The 3” Corrugated differs by being fixed through the top of the curvature. It is recommended that stitchers are used on the overlapping edge.

There is not a minimum length sheet however the maximum length that Cardinal Steels is able to handle and deliver is 10 meters. Longer lengths are available but not recommended and would be on a collection basis only. GRP rooflights maximum length is 7.35m/24ft.

When handling the roofing sheets always used gloves. Sheets can come very sharp. Always try to lift one sheet at a time for weight reasons also. All our flashings come with welted edges as standard to help with this.

We recommend with all first orders from us that a colour sample is sent by post. The biggest problem in the roofing and cladding industry is colour matching from different mill and countries of origin. Our online colour chart is as close as we can digitally get but please ask a member of staff for any required colours.