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I think there are steel roofing systems that claim to be ok for low pitched roofs such as 2:12.
Anybody make a recommendation? Or a point?
A client don’t want that ol’ three tab no more.
thanks,
Patwig
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Several houses ago the roofers showed up with something that looked like a giant eavestrough machine. They rolled off the panels (^---^---^) to the length required and installed. You could barely stand on the stuff it was so slippery and a lovely shade of green. I haven't seen the stuff since. Can't remember the company.
sometimes board sometimes knot
depending on length of run the life of the metal roof could outlast the shingles if used in the right climate. If there are end end laps due to long runs they will usally start to fail if subjected to snow loads. The other things to be considered 1.paint finnish lifeif a color is used generally 20 years prorated by manufactor 2.cost to replace the roof when needed. many companys have tried to come up with overlay systems but none that I know have been sucsessful due to the many different configurations,when you look at the cost to remove the and replace the existing panels total life cost skyrockets.One long lasting but high front end cost is copper panels,with doble crimped standing seams or flat sodered seams both are fairley common here in michigan with a life of 50 to 60 years
I've used metal over peel-and-stick membrane at very low slopes and not had a problem with leaks.
I have, however, had the membrane melt and run down the fascia. Not cool.
So, here's a hard-won lesson. If you use membrane under low-slope metal, do not use W.R. Grace Ice & Water Shield. It melts.
GAF has a good product, same idea as I&WS, but it has a two-part back, can be repositioned one time, will not stick to you in a light breeze, lasts a few months in direct sun, and does not melt under metal.
A little less expensive than the Grace product, too.
DRC
thanks to all of the responses. A little slow, but I do appreciate.
Patwig