Cutting metal roofing?

[Bretny]

Long story short i need to cut 3 sides of the roofing i put on a not so square shed.

Whats the best way that will leave me with the best end results? Im leaning towards metal cutting blade on my circular saw with laser sight.

 

[Kaizen]

Long handled tin snips. If you use a saw tape up the base as it will scratch the **** out of the metal. I used an angle grinder with cutoff blade and the snips. Make sure you wash off the dust right away or it will rust. I had the same issue and ordered end caps to cover the mistake


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[whateg01]

Circular saw is fast, but snips or cutoff wheel give you more control, I find.

 

[bullnerd]

Across the ribs, I don't think anything can beat the performance/price of the diablo blade in a circular saw. Its loud, but leaves a very nice edge.

Lengthwise is tricky, you have to support it good, but it will leave a nice clean edge.

If it wasn't for the price, the nibbler would be the best all around, in my opinion. You tube R&R buildings, he does a vid showing the nibblers.

I want someone to make a video cutting across the ribs with snips. I cant seem to do it without distorting it.

 

[The Cobbler]

cut off wheel in an angle grinder works well too . use a board clamped in place as a guide

 

[Bretny]

Tape on the bottom of the circular saw guide is a great idea. Im def going to clamp som kind of board on as a guide.

Have a link to the correct metal cutting blade for a 7.25in circular saw? Any i saw were $38.

 

[ransil]

When i did mine tried cutoff wheel burned the paint, nibbler sucked, my cheap *** finally put out for a $50 metal blade for the circler saw that did a nice job.

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[jdewitt]

If you use a circ saw or angle grinder with cutoff wheel, be sure to sweep the chips & dust off the metal roofing. They tend to stick where they fall and the rust is ugly.

 

[redragoon]

My Dad and I have been using the 7 1/4" Diablo Cermet II metal blade in his old Makita circular saw to cut metal siding for his shop. I think they are $30 at Amazon and Home Depot.

 

[.Dan.]

Agree with the majority on this one. I used a metal blade on my table saw (circ saw if it’s already attached obviously) when putting up a corrugated steel roof and was pleased with the results. Cant stress enough how freaking loud the process is though! Don’t forget to plug those ear holes

 

[rustyjames]

Cross cuts metal cutting blade, but not the carborundum types as they'll burn the paint. Length wise I prefer metal cutting shears, electric, not manual.

 

[Bretny]

I cut up the ridge line last night. Used a cutoff wheel to get within 1/2in of the cut line then plain old tin snips for the final cut. Tin snips where the way to go. A cut off wheel left a very sharp edge but didnt burn the paint.

How this will go cutting across the ribs im not sure yet. Being able to really pull the scrap away from the snips helped a ton. No saw tooth edges and came out fairly straight.

 

[Cobradriver]

As an FYI, my brother and I took the brutal route when we roofed the parents house in steel. Cheap carbide blades from HF in a circular saw.

We just made sure no cut edges were exposed or they were hit with touch up paint(came with the materials).

Hearing/eye/hand protection is mandatory when doing it this way!!

 

[tlmartin84]

I like these when cutting the length of the metal:

https://www.homedepot.com/p/DEWALT-...1a&gclid=CI-Cy5GVw-ECFVDJswodzRIHNg&gclsrc=ds

For cutting across the ribs, cutting outlets outs, etc, I go to a 4.5" angle grinder with a stainless cutoff blade.

The ONLY time I will use a carbide blade is if I am cutting multiple sheets sitting on a saw horse.

 

[tlmartin84]

I cut up the ridge line last night. Used a cutoff wheel to get within 1/2in of the cut line then plain old tin snips for the final cut. Tin snips where the way to go. A cut off wheel left a very sharp edge but didnt burn the paint.

How this will go cutting across the ribs im not sure yet. Being able to really pull the scrap away from the snips helped a ton. No saw tooth edges and came out fairly straight.

When you get to the ribs, cut through the top and keep a pretty fresh blade on it. Turns ut better than trying to go up and over......

 

[bullnerd]

I cut up the ridge line last night. Used a cutoff wheel to get within 1/2in of the cut line then plain old tin snips for the final cut. Tin snips where the way to go. A cut off wheel left a very sharp edge but didnt burn the paint.

How this will go cutting across the ribs im not sure yet. Being able to really pull the scrap away from the snips helped a ton. No saw tooth edges and came out fairly straight.

Good move, as long as you have somewhere for the curl to go, snips go pretty easy.

Are these panels already mounted?

 

[racingtadpole]

Cross cut a carbide blade, lengthwise, score it using a straight edge and a carbide tipped scoring tool that you use for fibre cement sheet and snap it.

 

[hunter41162]

I used tin snips, didn't take as long as you would think.

 

[Bretny]

Man that dewaly electric snips would be nice but for $230 to cut $110 in metal dosnt make sence.

Cutting along the ribs with snips was a no go. Ended up just useing a 4.5in cutoff wheel and dressing it up with a hand file. Should be fine for my $140 shed.

 

[bullnerd]

That's a cool shed!

 

[Bretny]

Thank you. I had a bunch of shorter than 8ft sawmill cutoffs to use. Theres actualy no framing for the walls. Just 1.5in thick slabs screwed to each other. Its 4x6ft inside. 5-6ft tall inside, a real head bumper inside.

 

[tlmartin84]

Man that dewaly electric snips would be nice but for $230 to cut $110 in metal dosnt make sence.

Cutting along the ribs with snips was a no go. Ended up just useing a 4.5in cutoff wheel and dressing it up with a hand file. Should be fine for my $140 shed.

Definitely not! I use mine for doing a ton of other stuff, it was just nice to have them when I was building my shop.