This is due to the galvanized zinc coating on the panels which can leave the area open to rusting if scratched.
How to cut metal roofing straight.
You may need to cut panels to fit angles using a circular saw with a metal saw blade.
But it also requires the experience in using an angle grinder.
Working with tin snips and shears.
You can cut mild steel up to about 3 8 in.
To compensate for how metal may curve or bend cut a strip out where you use red snips for one side and green snips on the other cutting 2 inches at a time on alternating sides so two inches up the right side two inches up the left.
In our test it cut through rebar like a hot knife through butter.
Lay a 2x4 on the grass and hang the end of the metal panel over the 2x4.
I m using irwin to.
Using a circular.
The steps are the same as the power shears but it usually leaves a bit of a messy burr on the cut edge.
Plan ahead prepare the metal and measure before you cut.
First of all measure your roof and order the sheets the exact length you need.
This controls how the metal flexes and gets a cleaner cut.
Metal roofing is also available in the form of shingles.
When you re ready to cut place the sheet onto a flat wide and sturdy work surface.
It may not be an obvious choice but fitted with the right blade a circular saw is a great metal cutting tool.
You can sand the edges if you want a smooth finish.
Hand holding marker pen marking measurement on a metal stud.
So cutting these panels should be done with minimal risk of damaging them which leads us to the step by step cutting technique.
How to cut metal roofing method 1 of 3.
The easiest place to cut metal roofing is on the grass.
Now your blade is not digging into the turf as you cut.
The metal sheets slide around too much on a bench or table.
Corrugated metal roof panels.
Use snips if you need to make short cuts.
Tins snips are probably the simplest way to cut tin roofing because they re designed for cutting soft metals.
Marking the metal for cutting.
Thick using a ferrous metal cutting blade.
Lay the roofing sheets on a flat surface with the underside up.
You can use an angle grinder to cut through metal roofing.
If you don t mind working by.
Cutting with tin snips is best if you have a small roofing job or the installation will.
Hot metal chips will fly everywhere.
