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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1answer
25 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
44 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
56 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 ...
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1answer
61 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
57 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
64 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 ...
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1answer
44 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
42 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
97 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
39 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 ...
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1answer
30 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
29 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
35 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 ...
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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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7 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 ...
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1answer
34 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
35 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
43 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 ...
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1answer
99 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
38 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
46 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. ***...
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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 ...
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1answer
40 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 ...
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1answer
76 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....
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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 ...
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1answer
36 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 ...
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1answer
58 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?...
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1answer
68 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, ...
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2answers
81 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
56 views

What do you think this roof construction is?

What roof construction is used to get the curved hips?
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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 ...
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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?
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0answers
21 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, ...
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2answers
131 views

Running EMT conduit through soffit into attic

I am running a couple of new circuits to the bathroom which will involve running THHN wires through the emt conduit. The problem is that my panel is on the exterior wall and the conduit will need to ...
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1answer
75 views

How to fix an ineffective Extraction Fan setup in bathroom

I have an existing IXL (Heat, light and Fan) setup in a small bathroom (12.14 meters cubed). The air exchange rating of the fan meets the spec required for the room, it works and doesn't look that ...
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1answer
44 views

How to connect backyard cover to existing roof?

This is an image I found on the internet My roof in the backyard is very similar where it sloping down toward the yard. I want to make the cover like the photo. Few questions: From the photo, look ...
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3answers
36 views

Roofing choice for outdoor sandbox cover

I built an outdoor sandbox for the kids that's about 4' x 5' but haven't had the time to put a real roof on it yet. To keep the rain (and the poo of roaming cats) out, we have thus far been using a ...
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0answers
25 views

Moisture Control/Ventilation with Cathedral style Roof

I'm in New Zealand, I have recently bought a house with a Cathedral style roof, that in the morning gets a log of Condensation on the Windows etc. Once the day gets going, the house does catch the sun ...
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0answers
64 views

Patch a leaking flat roof

We have a flat roof (very low slope) made from gravel and tar, it's a little roof over the porch of the house. When it's raining, the water leaks under the soffit on the right corner, where is the ...
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2answers
52 views

Moving awning support column

I'm wondering if it would be possible to move this support column 1 meter to the left, so that it lines up with the start of the sliding doors instead of being in the middle of it. Would I need to add ...
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0answers
41 views

OSB3 (particle board) got wet during roofing - does it need to be replaced? [duplicate]

I'm putting up a large GRP flat roof. The builder has been AWOL for a while, and so the roof has been left with just OSB3 with no waterproof covering. It's been rained on for months and swelled to ...
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1answer
43 views

Is a porch temporarily roofed with just tar paper likely to be damaged by rain?

General Contractor has been hired to build a wrap around porch onto our house. He has most of the construction completed (decking, columns, soffits, etc) but still has not shingled the roof. It’s ...
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1answer
51 views

Pond Construction Calculator - have I left out any variables?

I am interested in building a pond near my home in Maine. Unfortunately, water supply is limited, so I was curious to see if it would be possible to maintain a pond without having to manually refill ...
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1answer
101 views

20 year old “Spongy” Roof - It was solid 5 years ago - Do I need new plywood?

My Question(s) - : Is spongy plywood on a 20 year old roof OK or does it need to be replaced? This plywood was solid 5 years ago. More background (edited based on comments): I was walking on my ...
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2answers
119 views

Upper roof downspout emptying onto lower roof

I have an upper roof downspout emptying onto a lower roof. the downspout exit sits near the side of the lower roof, and water falls off the side before continuing down to fall into the lower roof ...
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0answers
12 views

Is there any reference (or probably web/online calculator) to figure the size for downspout pipe for a known flow rate

The total flow rate of water collected by the gutter of my roof is known (50 L/minute). I need to figure the safe size for my downspout pipe for this roof. What's the minimum diameter for the ...
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2answers
62 views

Storm-chasing contractors and insurance claims

This is the year we planned to replace our roof. When we bought the house five years ago, the home inspector told us that it was coming up on being due, so it was the next big thing on our list after ...
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1answer
91 views

Rafter load capacity

I have a 1929 craftsman house with dimensional 2x4 rafters on 24" centers. They're about 13.5 ft long, spanning 11.5 ft each (measured horizontally, wall to ridge beam) at a 7:12 pitch. About 25% of ...
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0answers
40 views

How to Approach Fixing a Roof Leak When Drywall is Rotted Out?

My parents house has a leak in the roof that hasn't been takan care of for a few years and has pretty much destroyed the drywall in the affected region. What strategy should I use to repair the leak? ...