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Tool Talk Discussion Forum

Holes in metal roofing

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jack12345

10-27-2006 22:02:53




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I have some used metal roofing that will be reused..knowing that some of the orginal holes are not going to match-up what is best way to seal them? Something that will last and dont have to hunt for leaks. Thanks




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Bill in NorthCentral PA

10-29-2006 17:37:37




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
Fill them with "pluggers", which are short screws, bigger diameter, same driver head, with same rubber washer, usually painted to match. Works great, and doesn't look too bad. I've never had one leak. Just tighten them down untile the washer just bulges a little bit - like regular screws.

Good luck,

Bill



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bil b va

10-29-2006 17:16:58




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  

what i did with the used metal is after putting nails or screws where i could hit wood i then put a
dab of caulking on the hole then pushed in a roofing nail .no leaks so far.



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T_Bone

10-29-2006 10:28:56




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
Hi Jack,

The best fix is too buy a SM soldering iron, no not the electric type, but a 3/4" square copper head with a shaft and handle.

You pre-heat the iron on a open propane flame, add cut acid to the hole area to be filled, then heat the SM with the iron, then add 50/50 0r 60/40 solder, let cool. Takes about 5sec a hole once you get your act together but a 100% leak free seal and very quick.

Any SM supplier will have soldering irons and stick solder, 1/4"x3/8"x12" for a reasonable cost.

The acid is Murratic acid. Battery acid, pool acid etc. Depends on what type of SM your soldering but pour a small amount of acid into a cup then drop in a few chips of the metal your soldering and let sit for a few minutes. It's now called cut acid and ready to use.

Silcon caulk is a waste of money for roofing. Use Butyl caulk if needed as it last longer with a better seal.

T_Bone

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Errin OH

10-29-2006 05:29:28




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
FWIW

When reusing steel sheets I layout the perlins based on the holes in the steel to mim the effects. Where I can't or have a miss I either run an extra perlin (many in a line) and use screws w/washer or use an oversized screw (single holes) that will screw in and hold in the steel and paint over with roof seal.



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Matt Smith

10-28-2006 20:02:32




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
Silicon caulk has no place on a roof. Use a product called Solar Seal. It's available at any sheet metal/roofing supply business. Comes in caulk tubes and is available in several different colors.



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old

10-28-2006 08:47:56




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
Best stuff I have found for that is the silicone type calking. Once you fill the holes with it then paint the stuff with a normal roof coating and you will be set for years.



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Bus Driver

10-28-2006 06:18:30




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
Use NP-1 available at commercial roofing suppliers. Stick it to clean metal.



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Dachshund

10-28-2006 05:52:30




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
I've used caulking on some of mine. The stuff Bud mentioned works great, too. I used a lot of it back when I was working on Mobile Homes. Menard's, Lowes, HD, TSC, Orschlen's - even Wally World - carry it.



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Bud in NC

10-28-2006 04:25:09




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
I used some "2nd or 3rd generation" aluminum and galvanized metal on my shop - have to keep windows on both sides of the shop open so it doesn't whisle in a high wind....
Anyway, I used "Cool Seal" on the roof to plug the extra holes. It comes in a 5 gallon bucket and it's thick, liquid tar with aluminum power in it. Mop it on and the powder floats to the surface and makes it silvery to reflect heat. I think it's used mostly on older moble homes.
I'm assuming if you were worried about it being pretty, you wouldn't have used "experienced" sheet metal....

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135 Fan

10-27-2006 22:48:53




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 Re: Holes in metal roofing in reply to jack12345, 10-27-2006 22:02:53  
Some kind of construction adhesive or caulking that goes in a caulking gun would be quick and easy. Just a thought. Dave



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