I looked at a small, low slope (3 in 12 or so) roof today. Another contractor had started the job a couple of months ago, then moved to the Dry Tortugas. Really. There’s Ice and Water Shield down, and it’s buckling in a few places. What’s next? Is there a fix? Do I tear it off and start new?
Thanks,
Andy
Arguing with a Breaktimer is like mud-wrestling a pig — Sooner or later you find out the pig loves it.
Replies
I would tear it off and replace.
It's not designed for UV resistance and I think you are asking for trouble in trying to salvage it.
Terry
Better tear off and replace. Chances are the material has been damaged sitting there uncovered for that amount of time. This is a low slope roof which has it's problems already built in so go the extra mile.
k
Have you guys ever noticed that the right way to do anything is never the easy and cheap way?
andyArguing with a Breaktimer is like mud-wrestling a pig -- Sooner or later you find out the pig loves it.
I can't remember who said it, a few years back, but they made the statement that the more they learned in their trade and about business the higher their prices went. And they didn't make more money, just better and more detailed work. I think that is true. DanT
What is going over it Andy?
Regular asphalt shingles can handle that anyway, and cedaar only get marginal at that pitch. Depending on what the finish roof is, I would likely just run another ply or two of 15# over it.
Buckling does not mean it is ruined. It means that the viscious gasses are escaping and being trapped under it. The heat of the sun has made those volatile oils vapourize and release, but the fact that there is enough integrity in the membrane to trap them in blisters says something.
It is true that it is not supposed to be exposed more than thirty days to be conservative, but does that mean at the equator, at the north pole, ion summer, in winter, on the northside or south side of the roof, under a shady tree or out in the desert........
it's one of those where you have to make a judegement call.
But I see no reason to need to kill yourself with tearing the old stuff off. If you have a scenario where it should be renewed for integfrity of the final product, just do another ply over the old. It's noit like it is an incompatable material that won't stick, LOL
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Hi Piffin. Thirty year three tabs. I'd kind of wondered about your approach. One argument in its favor is that it's a porch roof -- a leak isn't going to ruin the house, and ice damming is pretty unlikely. BTW, the Ice and Water is the type with mineral granules, so the underlying stuff is protected to a degree from the sun.
AndyArguing with a Breaktimer is like mud-wrestling a pig -- Sooner or later you find out the pig loves it.
Shoot, just lay a ply of 15# and start nailing shingles.
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Is there any reason not to just slit the areas that are buckling with a knife to get it to lay flat and go over the whole roof with another layer of ice guard? You did say small roof, so it won't be that much more money. I'm sure that Piffin is right that #15 felt will do it, but extra insurance ever hurt.
That's another option Nick. I'm guessing the pitch, and I'll verify it before proceeding. I'm pretty certain that no matter what else happens, I'm not tearing up the membrane.Arguing with a Breaktimer is like mud-wrestling a pig -- Sooner or later you find out the pig loves it.
Ya know, I hate to even ask this..what if..you really did have a situation where ya DID have to tear it off? What would be the best way? I'm thinking heat it with a torch..? Or just strip to the rafters?
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Not sure, but I suspect torching the entire house might be the better option.Arguing with a Breaktimer is like mud-wrestling a pig -- Sooner or later you find out the pig loves it.
I know how to do that too.
;)
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Andy--
Slit it, squirt in some pitch, press it down flat, and lay a patch of the same membrane over the area so you've got about 9-12 inches all around from the vent hole you cut in the original membrane.
If you did have to tear off the membrane, best way is to cut it into narrow strips--say about a foot, or even a bit less--before trying to pull it up. Like pulling up a glued-down carpet, but on steroids....
Dinosaur
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I'd leave it there. I like the idea of trying to get rid of some of that buckling. I think I'd poke a hole with a nail, squeeze out as much as possible and then drive a nail in that hole to seal it up. Do it a few times in each area if you have to. Either that or just burn the place down.....
Jim