For questions regarding the roof of a home or other structure in general, including roofing types, installation, maintenance and repair, upgrades, venting, and potential problems.

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6
votes
1answer
4k views

How can I lengthen my vent stack and are there any negative effects in doing so?

I have observed that when we receive a lot of snow here in Ontario, at least one of the drain vents on my roof is covered by snow. While after one winter in the house I have not yet observed any ...
2
votes
1answer
125 views

How do I install roofing material on a roof with a ridge vent?

I am helping a friend repair his roof; his roof has a roof vent at the peak of the roof. I've done a few roofs, but never with a roof vent. So any help in how you roof with a roof vent? I assume ...
1
vote
2answers
342 views

How can I find the source of a leak?

We have a lead lined, concave roof on a bay window. The roof itself has a small drain. Inside the house, below the bay window we have a small leak that occasionaly appears when it rains. I have ...
5
votes
1answer
204 views

How do I fix a leak in this roof?

A few days ago we had a good amount of rain that fell over a 36 hour period. During this time, a leak showed its ugly face. I got up into the attic, found the water stream and traced it back outside ...
5
votes
1answer
549 views

How do I close off attic vents?

First of all, I'm clueless when it comes to DIY so forgive my amateur lingo and general clueless attitude. I'm still learning, be patient with me. My wife and I bought a house on the sunny island of ...
12
votes
2answers
16k views

How do I use an extension ladder to get onto my roof?

I have a two storey house and need to get onto the roof to apply some heat paint on my furnace exhaust pipe before winter. It looks about 20-22' from the ground to the edge my eaves, so to be safe I ...
3
votes
2answers
7k views

What should I do about water dripping into my smoke detector from the attic after a heavy rain?

I live in the Midwest of the United States, and we not-too-rarely get a large amount of rain coming down at one time both in the spring and sometimes in the fall. Last night was no different (aside ...
4
votes
3answers
408 views

How to introduce more run into roof?

I have a 16'x20' deck roof that is attached to my garage on one side and (3) 4"x4" posts on the other side. The rise over the 16 feet is about 2 inches which is not enough for the water to get off ...
9
votes
2answers
2k views

Should we replace shingles that are curling and losing the asphalt coating before winter hits?

I don't know how long ago this roof was shingled, but we've noticed that the asphalt shingles, in two patches, have begun to curl and lose their grit. Even after a late summer of fierce rain, at ...
3
votes
2answers
730 views

Which flat roofing system requires the least maintenance?

I am a board member of my townhouse homeowners association and our townhomes are unfortunately very tall (need a lift or 60 ft ladder to access the roofs) and also the builder made the roof one single ...
3
votes
3answers
1k views

Does a device exist that can help find the source of a leak in a flat roof?

My Dad has a flat roof over his garage. It's covered with tar and felt. We had an unusually hard and cold winter last year (Republic of Ireland) and since then the roof has developed a leak. We've ...
5
votes
1answer
5k views

Can a gambrel roof have outer instead of inner supports?

I have built some of the "arches" for a gambrel roof, I know support is needed so the roof doesn't collapse. Is it reasonable to run twin metal straps around the roofing diagonally on the outside for ...
6
votes
2answers
4k views

Do I need soffit vents when I have 2 gable vents and 5 normal peak vents?

We are in southeast Idaho, have a plain simple gable roof on a 1,050 square foot floor house; the roof's pitch is not great, probably 3 or 4/12 but normal for our area. We have 1 vent at each gable ...
3
votes
1answer
575 views

How do I properly install underlayment and a modified bitumen roof on a flat garage roof with concrete walls?

My project is to replace 18'x10' flat roof on my concrete garage. So far I installed 16" oc framing and 3/4" plywood over it. Now I am planning to install some fiberglass based underlayment (#30, ...
2
votes
1answer
121 views

Can I tear down a roof with a torch? [closed]

Can my friends and I use a torch gas cutter to cut into the roof, and dismantle everything by sections? I imagine there will be some concrete layering underneath and such.
6
votes
2answers
3k 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 ...
13
votes
7answers
17k views

What is better for a roof, plywood or OSB?

While watching the builders next door do their thing, I became curious with their technique to install plywood on edges neighboring the next townhouse, and OSB for the rest (which for these narrow ...
3
votes
1answer
4k views

How do I nail plywood to flat roof framing?

I am putting some 3/4 plywood on top of 2x6 framing joists on my flat garage roof. The framing is spaced 16oc. I figured that I place 4x8 plywood sheets in such way that their short edge will be ...
1
vote
1answer
1k views

How can I modify this dryer vent cap to keep lint from getting trapped?

As mentioned in this question I installed this dryer vent cap on my roof As you can see, there is a gap between the flashing and the cap, presumably to let water out if it gets in. This is ...
5
votes
6answers
9k views

Is a roof made out of glass viable?

I have thought about that if I am ever going to build a single floor house this is what I would do. I would make the whole roof out of glass (like a greenhouse). This glass roof would be made out of ...
3
votes
2answers
3k views

How do I fix a leaking skylight?

I have a skylight on a shingles roof. I don't know much about the skylight as it was installed by a previous owner, but every year, at the beginning of the rainy season, the skylight leaks. And every ...
2
votes
7answers
21k views

How do I approach new water stains on my ceiling?

I am a brand new home owner with almost no experience with DIY stuff. There was a few days of significant rain and now my wife noticed some stains on our 2nd floor ceiling that we are pretty sure ...
1
vote
1answer
440 views

Are 38mmx72mm roof trusses sufficient for a 6m span?

My roof truss timbers are 38mm x 72mm on 600mm centres with a 6m span. What's that in good old inches? It seems a little skimpy to me; is this normal for a modern house? I am trying to do a rough ...
4
votes
1answer
9k views

Is it better to vent a bathroom fan out the soffit, the side of the house, or the roof?

Working on a friend's house, we're installing a bathroom fan. He had planned to vent the fan out the closest soffit, which is only a few feet away. I'm trying to persuade him to vent it out the roof ...
9
votes
3answers
234 views

I need to get up on roof anyway, so what should I inspect while I'm up there?

I noticed a filthy tree rat (squirrel) poking its head out from a hole in my gutter leaf guards today. Gotta get up on the roof to clean and repair that mess. Since I'm two stories up already, what ...
3
votes
4answers
559 views

My house is nearing 20 years, what will break soon?

Okay, I recently learned that most appliances/things start breaking once the house reaches around 20 years. I'm running 19 now. From what I have heard, roof (although mine is apparently a 30 year ...
2
votes
1answer
401 views

How can I check for possible damage after water leaking into loft chimney?

I had a loose tile on the roof in front of the chimney breast and noticed that in the loft the internal chimney breast was a bit damp. Since then had it repaired (i.e. the tile tapped down and the ...
3
votes
2answers
725 views

How to repair cracks in concrete overhang over entrance

I have a slab of concrete over the front entrance of my house with some serious cracks in it. I don't actually know what the proper name for it is, which makes this difficult to Google - so I've ...
4
votes
10answers
15k views

What are the pros/cons of Ondura for roofing?

I came across Ondura in Lowes this morning and had never heard of it. It looks pretty slick. Does anyone have experience with it to share? I found no matches when searching here and was sort of ...
5
votes
2answers
2k views

How to replace facia boards?

What are the essential steps to replacing facia boards without destroying the existing shingle roofing?
5
votes
3answers
473 views

How to plan for the future when installing a new roof?

We're hiring a contractor to take off the existing roof, repair/replace any rotted sheathing and rafters, and install a new roof. We've also asked that they add a new plumbing vent stack for a new ...
6
votes
3answers
1k views

Does this 2x4 support my gable ridge?

I'm installing a floor in my attic. To open up the space and simplify the flooring I'm removing temporary construction bracing. Most of the bracing is easy to identify, since it clearly does not ...
3
votes
1answer
386 views

Service mast too short

I've read that the service mast on the roof should be 12-18 inches high. The one we have is a lot shorter than that. Does that pose any safety issues? We recently purchased the house, and the previous ...
5
votes
2answers
2k views

Bathroom vent terminates to attic not outside.

Bathroom vents terminates to attic. The Inspector recommended that it terminates to the outside. What is the best way to do this. Should I just place the bathroom vent next to the roof vent opening. ...
6
votes
3answers
803 views

Is translucent fiberglass roof cooler or hotter than opaque roof

We are building a roof over garden table: sort of like a pergola with roofing. We are using OSB panels for insulation and fiberglass roofing sheets for weather protection. We already chose translucent ...
2
votes
1answer
201 views

Securing our roof against possums [duplicate]

Possible Duplicate: Animal in the attic (possibly a raccoon) We have just finished a major renovation of our house. Since complete, a possum has taken up residence in our roof. ...
6
votes
4answers
665 views

Is there a recommended vent for new roof?

I am redoing my roof. I already decided to add sofit ventilation which I currently do not have. I have gable vents, and already decided to go with normal eyebrow vents Vs ridge ventilation. Question ...
17
votes
2answers
1k views

What is the safe/correct way to work on gutters? From a ladder or from the roof?

I am very comfortable working on the gutters (usually just cleaning them) from one story up by just sitting on the roof. I do this on my own home over the garage and at my parents one-story home. I ...
5
votes
2answers
200 views

Replacing damaged shingles

In a recent storm a few shingles were damaged and need to be replaced, so I figured this might be a good question for the site. What's the proper procedure for replacing single asphalt shingles?
0
votes
1answer
314 views

Where to find glass 'support' requirements?

Where could I go about finding the maximum safe span of a pane of glass for a specific width? I.e. say you had two rafters, X meters apart, with glazing bars, supporting a pane of toughened glass ...
3
votes
1answer
2k views

Best way to flash an EPDM rubber roof on a concrete roof deck?

I'm planning to install an EPDM rubber roof on my 1922-built, poured concrete garage. The concrete deck leaks heavily during rainstorms, and it looks like installing an EPDM roof is just within my ...
2
votes
1answer
377 views

How do I deciding whether to install an attic venting system?

I live in Colorado, and the weather is starting to warm up. In a couple months, the temperatures will rise pretty high. Thankfully, I have a well insulated house (there is over 20 inches of fiberglass ...
5
votes
3answers
4k views

Mild water damage on drywall from leaky roof

We have a fairly new house (built in 1997). Cheap roof and we had a big windstorm a few years back that resulted in some lost shingles that I had patched -- no major problems. Recently we had a much ...
1
vote
1answer
2k views

How do I avoid condensation issues with an insulated garage roof?

Yesterday it was raining (slight overexaggeration of course) :-) inside my garage... Hood of the car was covered with nasty orange water spots. It's an attached garage. There's no garage "ceiling" ...
2
votes
2answers
481 views

TV antenna moves a bit - problem?

I'm partway through installing my own outdoor TV antenna. I've gone with a "through the roof and screwed into a beam" method rather than the "sit on top of roof and stabilise using 3-4 wires screwed ...
2
votes
1answer
1k views

What are some tips for installing a roof cap?

I am adding bathroom exhaust fans. The roof caps I have attach directly to the duct (this is not the model I have, but it clearly shows how the duct attaches): I had a lot of trouble trying to get ...
6
votes
1answer
623 views

Venting the attic space during summer to cool the house

The air in my attic gets superheated during summer, from the sun baking the (clay? terracotta?) roof tiles (I live in Sydney, Australia). I have good ceiling insulation, and even put in some sarking ...
5
votes
2answers
3k views

How do I repair/reattach downspout and gutter after snow/ice damage?

We've had a heavy dose of snow here in the Boston area it has taken a toll on our gutters and downspouts. The downspout at the rear of my house filled with ice and pulled away from the elbow that ...
6
votes
3answers
4k views

What do I do with a leaky roof in the middle of January?

I removed the ceiling Sheetrock and insulation during a bathroom remodel in my master bathroom on the 2nd floor of my house. I have snow on the roof that is melting and I found two small drips coming ...
5
votes
4answers
9k views

How do I put up a roof ladder?

What is a safe process for getting a roof ladder on and off the roof?