I know roll roofing is right up there with vinyl siding but I have a shed on some rental property that is begging for it. I am dealing with a 2/12 pitch and the roof is not visible from the ground. Although I am a carpenter I have not had the pleasure of installing roll roofing. The existing roof is sheathed with 1 by 6 and has a layer of standard 3 tab 20 year asphalt shingles that I would like to leave in place. My main concern is where do I put the nails and how do I keep them from leaking if the heads are exposed. I know its just roll roofing on a shed that I might tear down in 5 years but I want to do it right none the less. I appreciate any and all advice. Thanks Jay
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Mop on some roofing cement, roll the roll-roofing over it, press into the goo, put nails along the top edge, overlap the next course. If yopu have to put nails along the ends, cover well with a blob of goo.
Do it right, or do it twice.
jay.. why not over lay with some 1/2 plywood and use one of the new peel & sticks like Polyglass ?
good old roll roofing sucks.. and you're begging for leaks
Mike Smith Rhode Island : Design / Build / Repair / Restore
Can you tell us more about Polyglass? It sounds cheaper and easier than rubber roofing on low-pitch roofs.
Al Mollitor, Sharon MA
al.... Polyglass...
http://www.polyglass.com/intro.htmlMike Smith Rhode Island : Design / Build / Repair / Restore
Their website is so complex that you can spend an hour there before being enlightened, if you don't get intimidated first.
The product is a peel and stick like ice and water shield but easy to apply neat and straight. It has a reinforcing layer and a surface layer that has ceramic chips just like shingles and in colours. It's a bout a meter wide with about five inches of lap.
If you apply it over boards instead of plywood, you would need a base sheet to bridge the movement
One man can do it alone. Since you are sticking it down, there are no nails needed like the first Q asked. Nails poke holes in roofing membrane.
It's not cheap stuff but it is worth while for smaller porches and sheds..
Excellence is its own reward!
Thanks Mike and Piffin. Yes, it is a difficult web site. Even their English reads like Italian. They seem to have a bunch of products that paint on. I'll keep looking for the self-stick roofing material. There certainly is a niche for a good, simple product for flatter small roofs.
If you are going to leave the old shingles there, I would expect it to start leaking right after you finish. Roll roofing is a poor substitute anyway but it needs a smooth solid surface to lay on.
tear the old shingles off
Sheathe over with osb
stick the Polyglas in place
Excellence is its own reward!
Jay,
Strip with 1x4 on 2'OC and screw down some PBR metal.
http://www.semetals.com/MetalRoofing.html
KK
For cost on this described job, I believe you have the best solution. Too often, I respond to the specific presented..
Excellence is its own reward!
Hey, I've got this issue too - two parts of my roof are roughly 1/12 pitch. One part is over a shed dormer that goes to the ridge, and the other part is below that shed dormer and some of the gable roofline. I like the idea of putting metal over these parts, but how do you intersect with shingles that are sloping either up or down from the metal? I'm in western MI, land of lake effect snow.
My plans otherwise involve tearing off the existing, worn out, badly installed rolled roof, putting down plywood, then covering the whole area with ice+water shield and then new rolled roofing. I get a lot of pine needles on these areas, especially the lower one, and I'd think it'd be a lot easier to clean those off a metal roof than any kind of composition roof.
didUnencumbered by knowledge or fear...
Flashings sometimes need to be custom made for the application.
Excellence is its own reward!
http://www.henry.com go to products they have peel & stick rubber and asphault roofing but if you're going redo in 5yrs I would strip and lay down double coverage roll roofing with blind nailing cement so you don't have exposed nails.
Where do you get your Henry's products?.
Excellence is its own reward!
SKR DIST> in Bangor 1-800-281-9550
Thanks for all of the suggestions, I will investigate the peel and stick product. I like the metal idea because I might be able to recycle that into the new shed when I can afford to tear down and rebuild the existing heap-o-junk that I have been nursing along for the past few years. I really appreciate all of the advice. THANKS
FYI I had to go to Home Desperate today and saw Henry roofing cements but no Monsey Baker roofing materials, didn't want to wait to find out if they could get them, that place takes too long to get out of even if you know what you need. HD is a necessary evil sometimes.
I had to go to Home Desperate today
HD is a necessary evil
But confession is good for the soul. Absolution is yours, my son
LOL.
Excellence is its own reward!
Ayuh but it takes so long, a guy there yesterday wanted to bring his truck to the back door to load 50/12' 5/4x6 pt gave up at 30 and asked a sales person where the closest professional yard was I said sterns or hammond gave him directions to sterns he left the kid holding #31` and walked. You in sunrise or sunset saw some nice digitals here of Eggemoggin you took.