cutting tin roof

[terry stewart]

I have some tin for a roof but its to long after sawing it will it have a sharp edge or not thanks terry

[fordy]

Originally Posted by terry stewart

I have some tin for a roof but its to long after sawing it will it have a sharp edge or not thanks terry

.............Yes it will , But , since you will be starting at the lowest point first , Put the sharp edge facing<up> towards the peak and the next piece will overlap that rough edge . The last rough edge at the peak of the roof will be covered by the tin ridge cap . , fordy

[Scrounger]

What are you using to saw it? I generally use a combination blade (for wood). Put it on backwards. It will last 10 times longer then the "metal cutting" blades out there.

Wear Ear Protection......

[Watcher48]

Get a metal blade for your saw or sidegrinder ,(if you have one) using a wood blade backward use to be a good idea till most of them became carbide. Using a carbide backward there is a good chance you'll be slingin little bits of carbide all over. Not the ideal situation.
If you use a sidegrinder you can "sand" sand the edge slightly to remove the sharpness

[Scrounger]

Originally Posted by Watcher48

Get a metal blade for your saw or sidegrinder ,(if you have one) using a wood blade backward use to be a good idea till most of them became carbide. Using a carbide backward there is a good chance you'll be slingin little bits of carbide all over. Not the ideal situation.
If you use a sidegrinder you can "sand" sand the edge slightly to remove the sharpness

The carbide ones actually work the best.....
I USED to buy the metal cuting blades, but they don't last very long. You can still find non carbide tipped, wood blades, if you want. After the first cut, they stop (for the most part) breaking off anyway. The metal blades here cost around $10 each. You can still get "cheapo" wood blades for under $5.
The metal blades also throw "dust" and bits while being used - as they wear away.
You should be wearing a face mask when using either.

[texican]

Or, you can use hand nippers... Nah, go with the power tools.

If you have a 10' roofline and 11' long tin, cut the 1' off and have the cut end at the ridgeline.

If you have an odd length roofline (not on the regular 2' intervals), such as 23' long roofline, get two 12' footers, and slide the lower sheet 'under' the upper sheet for a foot... save yourself some cutting.

If you're buying new metal roofing, if you go to one of the specialty roofing manufacturers, like Muellers (in Tx and some other states) you can order the exact length you need... like for my house, I needed 18'7"... no problem for them... all sheets were exact cuts. Made all of my custom dormer lengths a breeze to roof.