Questions tagged [roofing]

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3 votes
1 answer
293 views

How can I tell whether this roofing material is hazardous to tear down?

I've got this little building in my garden that needs to be completely removed to make room for building a real house. To keep costs down, I'll be doing most of the tear-down myself but I'm unsure ...
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5 votes
3 answers
48k views

How can I prevent water from getting behind the gutter?

A friend of mine is having a water problem; the water is coming down behind the gutter. It turns out the drip edge isn't covering up the gutter completely on the one side for a considerable length of ...
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3 votes
3 answers
930 views

Small amounts of moss on asphalt shingles?

What's the best way to remove moss from asphalt shingles?
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  • 7,891
8 votes
2 answers
1k views

When is it time to replace the roof?

I've read several some of the guides out there (examples here and here) on this topic. I've found a shingle in the yard a couple times (after heavy wind/rain), and at times I've seen a few granules ...
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  • 193
7 votes
1 answer
4k views

How to properly seal/cover an unused chimney?

We recently replaced an ancient chimney-vented boiler with a direct-vented one. This boiler was the only thing using our chimney. The chimney is brick and sits in the center of our 120-year-old house. ...
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  • 8,017
6 votes
2 answers
15k views

How is installing roof sheathing horizontally stronger than vertically?

Prompted by a comment in this answer: What is better for a roof, plywood or OSB? Why is it stronger to install roof sheathing horizontally? Yes, it ties in more rafters, but in what manner is that ...
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5 votes
2 answers
23k views

What advantages do ridge cap shingles have over modified 3-tab shingles?

I'm preparing to re shingle my roof. I'm not sure if I should use ridge cap shingles, or simply cut up 3-tab shingles for the ridge cap. Do ridge cap shingles have any advantages over modified ...
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  • 128k
12 votes
8 answers
14k views

Should plywood be missing on my roof?

I live in Canada and I just had my roof done on my house. I recently went in my attic and found out that some part of the roof is missing plywood :( In the following picture, there is no nails ...
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5 votes
5 answers
46k views

Is it normal to see nails coming through the roof decking after a new roof was installed?

Our home was built in 1954, and is a Florida ranch style home. We have about a two-foot overhanging soffit with trusses that show and with tongue and groove under whatever that’s called. Sorry, I don’...
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4 votes
1 answer
11k views

Should a roof drip edge be placed above or below roofing felt?

I'm confused... I've seen two conflicting sources of information describing how a roof drip edge should be installed. One source (Ask This Old House), states that a drip edge should be placed above ...
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  • 7,891
2 votes
1 answer
799 views

Did I install this roof vent correctly?

I’m installing a roof vent to exhaust a new kitchen cooktop. I put a 6” hole in my roof and fit this painted metal vent between the asphalt shingles. I have sealed around the roof penetration l, under ...
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  • 1,514
0 votes
2 answers
58 views

Applying paint in hard to reach regions due to roofing sheets

Around two years ago we installed Galvalume sheets for roofing. As you can see in the images below, the trusses were given only epoxy coating. We were told by the roofing contractor that paint over ...
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