Low pitch roofing comes with its own set of unique challenges – but, as Colorbond Kenny from MyCladders, it’s nothing I can’t handle. In the video below, I will walk you through the step-by-step process of preparing a sheet for low pitch roofing so that it meets strict Australian standards.
Preparing a sheet for flat roofing
Watch as I demonstrate my preferred preparation techniques using trapezoidal sheets – also known as Trimdek – which is the material most commonly used for 2- to 5-degree pitch roofs.
In case you missed anything, here’s a quick overview:
- Safety first. Before you begin, be sure to pop on a pair of protective gloves.
- Protect your material. Placing a piece of cardboard underneath your sheet should help prevent any scratches.
- Starting at the bottom, turn down the sheet, mark it, and trim the dog’s ear off.
- Finishing at the top, turn up the sheet. When working on a low pitch roof, you’ll want to get the most mechanical turn up possible. Then, trim the dog’s ear off both sides.
Protecting low pitch roofs from water damage
A lot can be done to improve the water protection of a low pitch roof:
- Add infill strips, which provide an effective barrier against water, air, and dust. Plus, because they are manufactured from closed-cell foam, they won’t absorb moisture than can cause metal roofs to rust.
- Add Stormseal, a lightweight, durable material that protects against wet weather.
- Install larger flashings. Flashing is material – such as Colorbond steel – that cover joints in roof construction to prevent water leakage and subsequent damage.