Questions tagged [roofing]

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What is an effective method for reducing heatr from a bitumen roll roof?

I have simple bitumen roll roof with additional insulation, no air pocket space, no nothing and heats up a lot in summer. I have been considering either heat reflective paint or installing solar ...
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10 views

Proper sealing for brownstone roof dividing wall

TL;DR: For a four-storey New York brownstone with flat roof how should the dividing parapet wall be covered/sealed? The brownstone has a rubber-like membrane on the roof that is connected to brick ...
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1 answer
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Do old vents need to be removed if ridge vent is installed?

With a new ridge vent installed, I am wondering if these old vents need to be removed? They're plastic covers over a square hole cut in to the attic plywood. Just curious if it will interfere with ...
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  • 147
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Rubber roof liner needs more of a slope

I have this small lookout area that is covered off my master bedroom. it has a rubber membrane on it but seems to collect water against the house when it rains a bunch and snows. I doubt they ran the ...
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What is the basic process for removing and replacing roofing materials around clean out vents?

So on the roof the other day, and put my foot near a clean out vent. There was noticeable give in the roof surrounding the vent. It felt like it was just being held by the shingles and whatever felt ...
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9 votes
1 answer
1k views

How far should shingles hang over the drip edge of the roof?

Is it normal for asphalt shingles to hang past the drip edge a couple of inches on the rakes of the roof?
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Is it proper to have shingles at the bottom of the valley where the fascia is be 3 inches above the roof deck?

The shingles at the bottom of the valley are not laying on the roof deck, they are bridging across leaving a large gap between the shingles and roof. Is this normal?
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  • 101
1 vote
3 answers
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Have these roof ridge tiles been installed correctly?

Had a roofer replace some missing ridge tiles on the hip of my roof. He has used mismatching ones. Disregarding aesthetic, is this a problem?
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1 answer
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How to Install a roll-out roof on an almost-flat roof, 16ft x12ft (NJ) [closed]

This roof has been problematic for me for a long time. It was topped off in asphalt shingles 7 year sago and has started leaking again. I would like to install roll-out roofing. The type that goes on ...
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0 answers
89 views

What is this pipe in the attic for?

I see this silver pipe in the attic that doesn't seem to lead anywhere. There is a hole in the wood, maybe it used to go outside? Right now the hole is covered, probably with the roofing. Just ...
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1 answer
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Flooring covering for a bitumen balcony

Hello I have wood balcony that I made by making my first floor longer then my second floor, so basically my balcony is unfinished uncovered part of my second floor and fenced all around. In any case, ...
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Flat roof, where electric mains enter via conduit, leaks in heavy rain - does a cover for this exist?

I have a section of the roof on my house that is flat, and across the roof runs a conduit that carries electrical from the main panel to subpanel. In very heavy rain, water enters through a square box ...
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designing a cross gable roof with a doorway

I am trying to attach a gable roof perpendicular to an existing one,but looking for some help in joining two perpendicular/cross gable roofs with a one door headroom. It is because the existing gable ...
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3 votes
1 answer
125 views

Does the drip edge need to be nailed into the OSB sheathing or framing also

From everything I am reading online I am seeing the drip edge should be nailed with 1.5” nails but I can not find clarification if I need to try and hit the rafters each time which are 16inches on ...
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Advice installing a vent on roof

Installed a new bathroom fan today and realized the ducting is way undersized. 9'x15' room and a very tiny fan with 3" ducting. I replaced it with a 110CFM Panasonic fan. So I can't use the ...
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7 votes
1 answer
1k views

Is fiberglass showing on roof shingles an indicator of immediate repair needed?

We have a storm coming in today so I spent the day yesterday cleaning my gutters which were chocked full of debris. They also a significant amount of roof material in my gutters (my understanding is I ...
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3 votes
1 answer
51 views

How to correct guttering / roof problem on roof corner

I have a section of guttering next to a concave corner where two sections of roof meet, where water runs down the side of the house. After having the guttering looked at and still leaking, I've gone ...
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1 answer
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Specific name for this style of gable roofs?

How are the following sloping rooves described in architectural terminology? Notice some are bent, with a crook in the middle of the roof. Bonus points if you can tell the type of tiling on the roof.
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Paint for rooftop in asphalt emulsion sealer?

After researching, I've decided I'll use an asphalt emulsion sealer on my concrete rooftop. Since the coating is black, I would need to paint it. The manufacturer recommends their "silver" ...
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0 answers
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apply roof primer & sealant in sections?

I’m currently pressure-washing a 100ft X 100ft rough concrete roof so that I can coat it. The problem is that it’s a pretty big area. My question: can I pressure-wash and treat by sections? For ...
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0 votes
1 answer
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Roughly how long to single-handedly install a metal roof?

I am preparing to replace my roof in the new year, either hire someone to do shingles, or, I really like the idea of doing a standing seam snaplock metal roof myself. However, my weakness is time ...
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0 votes
2 answers
143 views

Which rafter hanger is best

I am building rafters to connect to a ridge board for a shed and I am torn between the rafter hangers to use. These are the two options: The reason I am torn is that the one RR rafter hanger is ...
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1 answer
57 views

Should drip edge be nailed to fascia? Should it wrap around at corners?

The roofer nailed the drip edge at most out side corners. It also doesn’t appear the the drip edge wraps behind. Is it supposed to? Should it be nailed? At the inside corners, there is a gap where ...
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0 votes
1 answer
97 views

Where is this water stream under the gutter coming from?

I have a stream of water going under my siding from the gutters. The gutters are new and completely clean, no debris. Also, the roof has vented drip edge extending into the gutters about an inch. I ...
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Spray foam on roof and HVAC

I am re-foaming my flat roof (residential home). Typical process is to remove existing foam, then spray on ~1" of new foam, and after that, apply two coats of elastomeric which protects the foam ...
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2 votes
2 answers
92 views

Can this roof flashing membrane be glued back down?

New house, roof deck. Membrane (I think it's flashing) pulling away from the wall underneath the siding. I'm not certain what type of membrane it is, but it feels rubbery. Can I just glue it back down,...
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1 vote
1 answer
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Roof loaded with shingles over ridge - should I demand they be replaced?

So I know that when a roof is loaded with architectural shingles prior to installation, you're not supposed to lay them over the ridge, but instead lay they remain flat and use toekick boards to ...
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-3 votes
2 answers
151 views

How do I know if a roofing company is using subcontractors? [closed]

My wife and I hired a roofing company, but I think the person we contracted with just put the work onto his crews back. He only came out to the job site twice: once to provide an estimate, and once to ...
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-1 votes
1 answer
32 views

Can I span 36” with SYP 2x4 laying flat as roof decking

I’m redoing my garage roof, which has a 12” slope over 14’. I have left over SYP 2x4’s and some microlam beams, but only enough to set at 36” OC. Can I span 36” with 2x4 SYP as my decking instead of ...
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2 votes
0 answers
226 views

How do I flash a roof valley into a gutter?

The following roof valley bypasses the gutter and spills too much water over the adjacent roof overhang. I figure a bent piece of aluminum flashing installed appropriately could divert the valley ...
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2 votes
2 answers
191 views

Do I need to caulk where my roof meets the siding?

I'm not sure if the seam needs to be caulked where the roof meets my wood siding. There are some areas where it looks like it was once caulked but the majority of it does not look caulked. Should the ...
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0 votes
1 answer
66 views

Solar installer

I'm considering purchasing my own solar panels and installing myself and doing all the paperwork. I want to do it myself for the experience. The problem is that my HOA won't allow me to do the work ...
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What are the proper steps to replace a poorly installed dryer vent in an old flat roof in Phoenix?

The dryer vent extends from a utility wall in the center of the house directly up and through the roof. The current penetration is a simple hole with a dome screen topped by a vent hood. I believe ...
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0 answers
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Aluminum roofing over shingles

Can I reroof my garage with aluminum panels, but go over the existing shingles? I’m fairly certain they contain asbestos and don’t want to remove the old. Surface is plenty flat and planar, and I can ...
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0 votes
1 answer
56 views

Osb over shingles

I want to reroof my garage, but I think my old shingles are asbestos shingles. I don’t want to remove them. The decking underneath is in fine shape. So my question is (because the shingles have a flat,...
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0 votes
2 answers
102 views

Should old openings in a plywood roof deck be closed before installing steel?

My metal roofer removed all 14 old vents and installed two new "Maximum ventilators" in its place. The remaining 12 holes are still there and not sealed and i can see the underside of the ...
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0 votes
1 answer
110 views

After all this handwringing, do i need a new roof really? [closed]

I finally nailed everything down with a contractor, shingle line, and approach and just yesterday I got the feedback that I may not need a new roof...yet. So, I'm asking the hivemind. I started this ...
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1 vote
1 answer
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Should I replace my entire shed decking or just the rotted spots?

Redoing a shed roof, it's decked with 50 year old or so plywood, tore the shingles off, bottom 3 feet or so of the ply is bad, thinking of just replacing the bottom 4 feet of ply since ply is so ...
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1 vote
1 answer
139 views

Small 1940s colonial with no soffits, no eaves, two gables and needs ventilation

I have a 1940s colonial with no eaves, no soffits, and soffits can't be added. I do have two gable vents (original) and a power fan that was added (but is broken). I have early stage mold. The diagram ...
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1 vote
2 answers
104 views

Please tell me what's the name of the metal wrap

Can someone please tell me what's the name of the metal wrap in the first pic? It wraps the top of the wall on my roof top. My roof has a rubber layer on it and it goes up to inside the wall. On top ...
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1 vote
1 answer
48 views

Flashing /waterproof for wires going through roof gable

I am in the process of replacing my siding and found an odd (read: wtf) spot where wires are coming through the roof to a porch below. It looks like they just put a hole through the roof/shingles but ...
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0 votes
1 answer
99 views

Are our cracked roofing tiles dangerous?

We had some felt replaced on our roof a couple of months ago. After the job had been done I went up the scaffolding and took a look at the outside of the roof. See photos at the bottom of this post. I ...
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0 votes
0 answers
39 views

How do I know if there is a hole underneath a bad patch job in my ceiling?

How do I know if there is a hole underneath a bad patch job in my ceiling? I am just curious because I don't want a any leaks happening.
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0 votes
1 answer
249 views

What is this metal roof trim that was torn loose by a storm?

Heard a banging, couldn’t put my finger on it while I was up in the attic but I found out where in the house it was. Walked outside and found the culprit. It’s the metal trim, perhaps this is the ...
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2 votes
1 answer
47 views

1880 Home with Ballon Framing - Roof Soffit Question

I have a 1880 house with balloon framing. On the 3rd top floor, the roof line extends beyond the top plates and there's a air gap at the end...I can right into my rain gutters from the inside and have ...
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2 votes
1 answer
85 views

Do I need a vapor control membrane inside the roof if I have a breathable underlay outside?

I am a DIY'er working on a cottage in a remote part of the UK. I don't really have access to a professional roofer so I've just been having a go at it myself with some labourers. So we have ...
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3 votes
2 answers
117 views

How could I insulate a thin hot roof and bring it to current Southern CA code?

So we started an exterior remodel today, and found that our roof construction is way more mickey mouse than I thought it was. Our house has vaulted 2nd floor ceilings through most of the 2nd floor ...
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1 vote
0 answers
130 views

Neighbours guttering running onto roof

Hi I have just got home to see our neighbour at the back has put guttering running straight onto our outhouse roof. I wondered if this was allowed or should the pipe be going right down to the ...
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2 votes
1 answer
120 views

Repair roof flashing that is tucked under gutter rather than over it

I noticed water dripping from behind the gutter. When I climbed up to investigate, I found that a piece of flashing was installed incorrectly. The gutter should be tucked under the flashing. But ...
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2 votes
2 answers
382 views

Use Rivets for old corrugated Metal Roof

I have an old barn with an rusty corrugated roof. The rafters are pretty rotten and the corrugated sheets come apart and I have slow leaks. The roof is nailed and some of the nails have worked their ...
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