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Questions tagged [roof]

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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21 views

Roof Flashing inside corner

I'm building a structure and putting a roof on it. The roof is single slope 3x12 pitch. Basically it's rectangle platform except where in the middle of the lower edge the roof extends 2 more feet so ...
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1answer
33 views

Galvanized 5V Crimp roofing screw placement with battens/counterbattens

I am installing 5V crimp roofing over an addition to my small house. The additions's roof joins the house under a 14" eave. The main house slope is 5/12 or about 22.5 deg. The addition slope is 10 deg....
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32 views

Long clout nails though rigid insulation boards

We are building a cabin with a solid wooden roof (18mm) on which shingles are nailed. An advised method of insulation is to put rigid insulation board on top, then nail the shingles using long clout ...
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8answers
11k 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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25 views

What's the best way to protect plastic drain waste vent pipes from UV damage on a roof?

What is the best way to protect plastic plumbing waste vents (DWV) where they extend above the roof? PVC discolors and gets brittle in the sun, solid ABS gets chalky, foam cellular core ABS bends ...
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2answers
30 views

How can I replace missing parapet wall “joint caps”?

My home has a fiberglass roof deck with parapet wall surrounding it. The parapet wall is covered in aluminum (at least I think its aluminum) that matches the vinyl siding and color of the fiberglass ...
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38 views

How to fill in an incompletely filled in downspout on built up flat roof

I notice that water pools up over a mostly filled in downspout fairly often on my built up roof. The downspout goes maybe 3-4 inches deep before I hit a rough and very hard rubbery surface (I can't ...
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3answers
83 views

Power cable loose on roof OK?

I would like to mount a floodlight on my chimney. I'm not keen on cutting into the roof there to make an entrance for the wire. Every hole in the roof is an opportunity for water intrusion and it's ...
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1answer
31 views

Fixing water ingress at mitred corner in roof fascia

Apologies in advance for the long question - I wanted to include all the details as I am rather unsure of what I am doing! I have a 10-year-old flat roof with a fascia facing the predominant weather. ...
3
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1answer
82 views

My new roof has a few sagging spots

Not so visible in photos because of the way the sun hits the roof but very visible by naked eye. Enough for my neighbors to stop by to ask me what's wrong. I had the new roof installed 2 weeks ago ...
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32 views

Is roofing felt/felt shingle breathable?

I'm thinking of putting either these bitumen shingles, or standard roofing felt, on top of a barrel sauna to stop it leaking. While I'm at it I thought I might add some air bubble/aluminium ...
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1answer
35 views

Best roof for tropical climate

I'm building a new house and can't decide what type of roof is best. I live in a tropical country where the day temperature is always above 32 degrees celcius. The criteria I want for the roof are: - ...
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2answers
101 views

What prevents water from getting underneath these roof shingles?

I see a lot of houses In my area with roof edges where one side of shingles overlaps the other. For example: Is anything special needed to prevent water from getting underneath the overlap?
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3answers
47 views

How to taper an irregular flat roof for a slight fall

First of all, Harper gave a great answer to a similar question here, but I'm having trouble making it work for an irregular shaped roof with an angle that is not 45 degrees. My roof contains an ...
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3answers
96 views

Should I bend my roof edge away from the fascia to prevent water wicking?

Last year, I had a new fiberglass shingle roof installed by one of the better roofing companies in my area. Overall, I am happy, but I'm not sure that the drip-edge was done correctly. It seems that ...
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3answers
88 views

Truss Plate Loose where rafters meet

DIYer here. I noticed that (only) one of the truss plates popped off where the rafters meet at the peak of the roof. Thus, a single set of rafters and the supporting beam are misligned and no longer ...
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1answer
31 views

What type of paint and preparations would be appropriate for painting a mural on a rooftop?

My house has a modified bitumen membrane roof, at a very low pitch/nearly flat, which was repainted with aluminum asphalt paint a couple years ago. My friend is considering painting a mural on the ...
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1answer
92 views

Connecting downspout to first floor gutter

I am looking to connect my second floor downspout to the first floor gutter. In any sort of wind, the water misses the gutter completely and makes a big mess. I found the thread here very helpful ...
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0answers
62 views

Was my home's dormer flashing installed incorrectly?

I've lived in this home for two years now. Roof is probably at least 10-15 years old, perhaps 20 years. We started noticing some water stains on the ceiling soon after moving in. On a closer look, it ...
2
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1answer
66 views

Small patch in wall sheathing behind masonry chimney

I noticed a small hole, about 14” x 14” in our attic on the gable side. I wonder if it used to be a gable vent. Home was built in 66’ What can i do to patch this up? It looks like this sheathing ...
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1answer
58 views

Will my roof framing support an array of flat solar panels?

I want to install 23 305w panels on my roof. It's a flat roof constructed with 2x8 beams spaced at 24". There is no snow load to consider and we get occasional wind and rain storms a few times per ...
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2answers
67 views

Attic more drafty after roof replaced

We had our house re-roofed a few weeks ago and I noticed that my attic is more drafty. I live in the UK and my house was built in the 1960s. It is a semi-detached bungalow. I'm not sure what the ...
3
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1answer
49 views

Is it a problem that I see daylight through my shed's soffit?

First and foremost - please excuse my ignorance and improper use of terminology. I have a free standing garage with a mono-pitched / shed style roof: The garage is unfinished inside and I noticed ...
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2answers
66 views

How can I attach/seal around an exhaust fan duct at the roof?

I am redoing the ducting from a kitchen exhaust fan to the roof cap. The old ducting was 6" and I'm increasing it to 8" to match the vent on the new exhaust fan. The current roof penetration is a 6....
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3answers
104 views

What is this roof constructed from?

I am trying to answer questions about the construction of a roof and was wondering if it is possible to tell from the picture attached, and if so what the construction is? EDIT: The roof is difficult ...
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1answer
43 views

Is a 7 degree slope for a roof too small in a rainy area?

I want to build a car port off my house. Due to window placement the highest part of the roof could only be 10 feet above ground. It will extend out 16 feet. If I want the low point of the roof to be ...
1
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1answer
33 views

Water around furnace: culprit?

Problem: After heavy rain, water pools around our basement furnace. After climbing onto the roof, I found a mysterious (plumbing?) vent. This post seemed relevant, but 0.5 gallons comes in after a ...
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0answers
32 views

How can I add a roof over the existing Deck?

I know how to build a cover, I just don't know how to attach it to the existing deck. Something like this:
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1answer
39 views

Can I replace just part of a 1x6 roof deck with OSB?

Redoing Roof, Roof Decking is 1x6 inch planks, and some OSB so the sheathing is mixed materials. Is it ok to replace the lower half of the roof with 3/4 or 1/2 inch plywood and keep the top half ...
29
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5answers
5k views

Is it safe to remove the bottom chords of a series of garage roof trusses?

See attached picture. Looks like an 8x10 cut-out. He wants to lift cars up so he can walk under them. Is this safe? Doesn't removing the joists affect structural integrity?
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0answers
17 views

Roof DWV vent: minimum distance from parapet?

I need to poke a hole in my flat roof (sloped, built-up roof of tar and felt) to accommodate a new vent. The vent will be 2" PVC. Is there a minimum distance from the exterior brick wall to place ...
0
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1answer
40 views

1x8 roof sheathing VS plywood/osb

My 1955 home has a flat roof with 1x8 sheathing. It's time to replace the roof, and I am considering replacing blown-in attic insulation with batts, at the same time. The attic is only 20" between ...
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3answers
40 views

Removing cap from box/turtle style roof vent

I have a vent on a shed roof: that has a huge wasp nest inside (though no wasps (at the moment), thankfully!). I can see it from the inside of the shed (not pictured). I thought it would be easy to ...
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2answers
66 views

How can I prevent water from running behind my gutters and under shingles near a wall?

I've been troubleshooting some issues have been having with water getting into my basement. Today I took a hose out to try and find out how water is getting behind my gutters and believe I found some ...
1
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1answer
104 views

What architectural roofing feature is this?

First off, let me say that this question will stray from the residential side of home improvement, but I'm wondering if there's anyone who may be familiar with the following architectural feature at ...
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2answers
40 views

Can I suspend lights within my property boundaries, above my wall heights on my roof deck?

I have a condo with a roof deck (super awesome). The deck is very large, but is right in between two other decks (we share the same dividing walls) of two adjacent condos. The walls are not ...
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2answers
51 views

removing skylight from resin storage shed

I have a 10 ft. x 8 ft. Keter Stronghold Resin Storage Shed The roof panel slides off due to several broken tabs on skylight so I have to remove the old skylight by unsnapping the roof panel. ***...
2
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1answer
23 views

EPDM Rubber Bond Roof in multple pieces

I've just had a garage roof laid with EPDM rubber bond. I expected this to come in multiple pieces, but the roofer has used 4 pieces. 2 long strips on either side, then 2 half-length strips to fill-in ...
0
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1answer
47 views

Roof patch, how long will it last?

We've had this since we bought the house. Underneath in the attic it looks as if part of that roof collapsed (probably a foot went throught). Then someone patched it up in a crappy way. I have no ...
1
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1answer
89 views

Water leaking behind gutters

I'm a new homeowner and found that water is getting behind my gutters and was hoping someone may have a solution for me. Here's the gutter: Edit: Additional pictures below Video here: https://imgur....
1
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1answer
40 views

How to demo a partially structural chimney?

Just bought a new home and would like to remove its chimney. It was originally built on the outside of the home and they built a carport up around it. It looks like it may have sprung a leak, so the ...
1
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1answer
39 views

Improve existing roof insulation from the inside

We have a pitched roof (1971 house, The Netherlands) which consists of (outside to inside): Tiles 2cm PUR insulation 2cm wood We asked a few companies for quotations to improve the insulation (...
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1answer
40 views

How to manage water runoff on flat roof of accessory dwelling unit

I am planning to build a new accessory dwelling unit (granny flat) in my backyard. I really like this design from https://node.eco/ However how do I manage the flat roof water run off? Is it just ...
0
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1answer
60 views

How to find what color my roofing is?

I'm looking to replace my roof and the company gave me a few color options. I can't tell right now what color my roof is or what color mostly matches. Is there a definite way to figure this out myself?...
1
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1answer
69 views

DIY Tubular Skylights for special application; seeking tubular skylights smaller than 10"

We would like to have several "tubular skylights" in the construction we are planning. These are skylights consisting of a circular opening in the roof with attached dome-shaped or circular window, ...
1
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2answers
84 views

Is it typical for a roofing contractor to inspect roof framing and quote repairs?

I just got an estimate for a new roof on my home for $23,000.00. The roofer did an inspection inside and stated that there was sapping on the wood beams at the highest point on the roof. He stated ...
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1answer
58 views

What do you think this roof construction is?

What roof construction is used to get the curved hips?
9
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3answers
4k views

Hail hit my roof. Do I need to replace it?

We had a hail storm last night. Some of the pebbles were about an inch in diameter, although most were smaller. I went up and took some pictures of part of the roof. Most of the shingles look ok, but ...
1
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1answer
47 views

Flat roof on garden office

We have recently had a garden building built in our garden by a bespoke company. However the roof has no gradient at all so we have standing water when it rains. Is this ok?
2
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0answers
23 views

What needs to be replaced for correct eaves / roof edge?

The last homeowner installed a patio roof - connecting support beams to the roof structure. It was a very flat roof -- that had lots of problems. I'd repaired it on multiple occasions - however, ...