There are many types of snips available on the market designed either for straight or curved cuts.
How to cut corrugated roofing sheets.
Step 1 preparing the roofing.
With the right tools you can quickly cut this type of roofing by using the following steps.
Lay the corrugated plastic roofing sheet on a hard stable surface.
Corrugated fiberglass or pvc roofing which can be translucent or opaque works well for greenhouses sheds and porch additions.
The braces are sawn to match the corrugations and attached to the roof rafters.
Snips are ideal for cutting any type of corrugated roofing especially for cutting softer metal like tin sheets.
It comes in 4 by 8 or 10 foot sheets and you install it by screwing it to wooden or plastic braces.
To prevent the surface from getting scratched while cutting the corrugated plastic roofing sheet place plywood or cardboard underneath the plastic.
Tin roofs are lightweight and soft by nature this is why cutting them manually with snips is a good option.