Posted: 5/27/2008 5:24:22 PM EDT
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I'm putting shingles on the roof of a chicken house. The roof is slightly pitched but is completely flat, no valleys or vents to flash and no peak. How do I finish the last course of shingles at the top of the roof? Do I need to do something to the last course where there are exposed nails? Caulk the nail heads? Forget about it and leave the nails exposed? Something else? TIA. |
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Run a 90 degree strip of sheet metal over the nail heads and the top edge of the wall. You can adhere it with a suitable caulk(SL-1) or a mastic. ETA- Or you could go all out and use a clip/metal edge detail to keep your nail heads dry. Most sheet metal shops/roofing companies will brake some metal for you for about 50 cents a bend. Run your clip over the last course, mechanically fasten it to both the roof and wall, then snap your coping on by sliding under the roof section and snapping it over the lip on the wall. Here's a drawing. I over emphasized the bends on the edges for clarity. 
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If your using 3 tab shingles cut between the tabs making three small shingles out of one. Bend single shingle over ridge. start at east or north end of bldg and run them.towards the direction of prevailing winds.Sorry but we are not working this week so no pics for you 
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You must be an architect
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Man, don't even get me started with architects and engineers.  ETA- You must be a residential guy
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50/50
BozemanMT 5 minutes longer to do it right.
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That's pretty much what I did........cut the last course to hang over, nailed it in, and put some roofing tar over the nail heads. 
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