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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I live in Alabama. Extremely humid and hot climate. Advice for replacing roof?

My house is over 50 years old. I live in Alabama, where temps normally exceed 100°F in July/August each year. I have the original 3/8" 24" on Center roof decking. For at least 42 years, ...
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1 vote
0 answers
55 views

Suitable material for over rafter insulation to avoid moisture problems? [closed]

The old roof of my house has poor thermal insulation needs changing to match today's standards. I have gotten conflicting advice regarding which over rafter material to use. An energy consultant ...
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1 answer
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Insulating Ceiling After Skylight Removal

I'm removing 3 skylights from a vaulted ceiling. I'm tired of the leak anxiety and the heat that pours in when it's hot out. I'm hiring someone to do the roof but I'd like to finish off the interior ...
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How long do tar-like blankets on a roof typically last? If installing a solar farm on five year old roof, should additional blankets be added? [closed]

On a single story flat roof private home I am installing a solar farm. On the roof there is now a tar-like blanket. There are no signs of damage that I can see, but I suspect that it will be a major ...
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1 answer
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Move rooftop air conditioner: Is 20cm too close to original location for the bolts to hold strong?

On a single story flat roof private home I need to move a rooftop air conditioning radiator 20 cm for a solar panel install. Fortunately the sloppy original install left enough electrical cable and ...
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1 answer
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How can I seal holes in a roof after moving an air conditioner?

On a single story flat roof private home I need to move a rooftop air conditioning radiator 20 cm for a solar panel install. Fortunately the sloppy original install left enough electrical cable and ...
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-1 votes
2 answers
35 views

Move rooftop air conditioner 20cm: What type of anchors are preferable?

On a single story flat roof private home I need to move a rooftop air conditioning radiator 20 cm for a solar panel install. Fortunately the sloppy original install left enough electrical cable and ...
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-2 votes
1 answer
79 views

Move rooftop air conditioner: Drill through tar-like blanket?

On a single story flat roof private home I need to move a rooftop air conditioning condenser 20 cm for a solar panel install. Fortunately the sloppy original install left enough electrical cable and ...
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0 votes
1 answer
42 views

Poor design roof tile causing leak?

I have concrete roof tiles of the following design: Water started dripping through the ceiling and I located the leak to the gap between 2 tiles after poking a hole in the ceiling (it was rotten ...
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1 answer
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Does my roof have soffit ventilation and do I need to install baffles prior to blowing in insulation?

Edit: As it turns out, my soffit vents are decorative only. I pried open the soffit in 2 different areas, and there is continuous solid wood behind it. How is the attic getting ventilated then? ...
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1 answer
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Water from pump does not always reach roof tanks

Some mornings I go up to the roof of our building, open the lid of the water tanks, press down on the floating ball which opens the valve but see no water coming up. The same occurs for all 7 tanks (...
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How can I finish the ceiling in this detached garage?

I'd like to finish the ceiling in this detached garage with insulation/drywall. I've attached some pictures but I definitely don't think there are enough (rafters/joists not sure which one?) to ...
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-1 votes
4 answers
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Who installs a satellite dish if the original company won't?

I want to try Starlink at my house. It would have to be on the roof to get a good view of the sky. Starlink appears to send clients a self-install kit and does not do any installation services. I'm ...
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-1 votes
2 answers
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Removing a rafter [closed]

I have a small opening between my main loft space and the loft space of my extension (I have to turn sideways to get between the loft spaces). I wish to create a larger connection between loft spaces ...
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Any problem with cutting a hole through one section of attic to another attic? for ventilation

I have an attic that has no vent and another attic (I assume) that has a vent on the outside of the house, a "gable vent" I think is the correct term. I want the hot air to get out of attic #...
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-1 votes
2 answers
88 views

What is an effective method for reducing heat 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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1 vote
1 answer
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How do I connect these two pieces of dryer duct in my attic?

I am about to install a Dryer by mounting it on the wall in an inverted fashion, and then venting it through an existing dryer vent setup that has been designed with a duct joint that goes into the ...
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Solutions to increase roof insulation with raised tie trusses

My house has raised tie trusses: This means that on the second floor the central part of the ceiling is flat, but near the long walls it is slanted. The trusses are 2x6 timber construction, meaning ...
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1 vote
1 answer
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Normal variation or poor quality / craftsmanship on shingled roof

I hired a company with decent Google reviews to put a new roof on my house. When the job was done I climbed up and looked at it. Some things didn't look perfect, but I don't know what's considered ...
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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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How do I fix this roof myself?

It is an almost flat roof. I don't know what that grey stuff is. I am looking for a reliable and easy to apply the fix, cost is less of a concern. By "fix" I mean make it not leak. Don't ...
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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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1 answer
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Should this shingle have another shingle covering it?

New ridge vent was just installed and I noticed 2 shingles across my ridge that have these tiny square patches on them. I'm not entirely sure what they are, I'm guessing it is covering a nail or screw....
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2 votes
1 answer
114 views

Do I need a new roof to install ridge vents?

I wanted to have a ridge vent installed across the top of my roof to improve ventilation. Roof is about 40ft long with a ridge board in the middle and 5/12 pitch. Roofer came out saying he can't ...
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1 answer
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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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1 answer
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Double 2x12 Beam - Seams Over Posts?

I'm building an awning off the side of a barn. I have four 6x6 posts spacing at 0,8',18',26'(8ft, 10ft, 8ft spans). I am building a beam out of 2 2x12s. I had learned that when constructing these ...
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9 votes
1 answer
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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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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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4 votes
1 answer
373 views

Materials that work to show water has leaked in an area

In this question, the Questioner has a damp spot below but seen no sign of water on the framing/sheathing. Roof Leak without any Visible Shingle Damage or Issue What would be a good material to dust ...
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1 answer
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Roof Leak without any Visible Shingle Damage or Issue

We recently discovered a leak manifesting itself with stains in our ceiling. It likely happened a few days ago when we had about 2-3" of rain overnight. We have never had a leak before, and the ...
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1 answer
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Can I make up the depth of a roof truss with a separate timber?

Replacing rotten roof trusses that were originally 320mm Scots Pine timbers. The roof originally had to support concrete tiles which were heavy, it will now be supporting a lighter tin roof. The ...
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0 answers
19 views

Can you provide me with advice for choosing appropriate materials for rebuilding the roof over my dug well?

My water supply is an 18' dug well with 24" inside diameter. The top of the well casing is below grade and within a 4' x 8' block foundation, about 3'6" deep. The well, pump and pressure ...
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0 votes
1 answer
30 views

Fascia installation on a gable roof

I'm building a small Tiki bar in my backyard and already framed my gable roof at 3-12 pitch. All the rafters are plumb cut. On the front of the structure, the ridge beam protrudes out 4 feet. I want ...
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1 vote
0 answers
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Patio Roof Cover - Will This Hold Up To Code & Be Strong

My first time posting. I plan on building a patio roof in my back yard. It will have a metal roof on top. Is this plan, span, strong enough and to code. I'm located near Charleston, South Carolina ...
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0 votes
1 answer
63 views

Roof deck repair

I have a "roof deck" above my condo. It's a flat surface that doubles as the roof of the living area below. I noticed an approximately 2-inch diameter bubble had formed on the surface and ...
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1 vote
2 answers
57 views

Any concerns with moving a plumbing vent?

We are currently in the process of evaluating placing solar panels on our roof. The south facing roof with best sunlight currently has a plumbing vent that would be nice to move if possible. My plan ...
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0 votes
1 answer
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Changing a roofline for solar? [closed]

Our 1950's built mid-century modern home faces roughly south, which is great for solar panels. However, thanks to its super cute low slope roof, with gables and hips galore, and lots of vents and ...
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0 votes
1 answer
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What is causing the leak behind our gutter?

Our gutter was recently replaced and there is one spot that has been leaking ever since (let's just say, we haven't had the best experience with the contractor and have been trying unsuccessfully to ...
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0 votes
1 answer
80 views

How to muffle rain hitting overhanging steel eave?

In order to stop rain soaking in through the walls a narrow 15cm steel eave was added above a couple of windows at my place. It does the job, we no longer get any water entering the building. But, it ...
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2 votes
2 answers
120 views

Can I split 6” flex duct into 4” flex duct to run between rafters, then rejoin to 6”?

I am building out my attic, and need to run a 6” insulated flex duct between 2x6 roof rafters to a register in the ceiling. The 6” duct is too big to fit between the 2x6 rafters. Can I use a Y to ...
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1 vote
0 answers
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Will this roof vent installation cause me problems?

I just have my house re-roofed on last November. Recently I look around in the attic and found the new vents and ventilation fan weren't prefect fit the existing holes. Will this situation be a big ...
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2 votes
1 answer
77 views

increasing R-value for old vaulted ceiling

I have vaulted ceilings in the main living space. Internally there are 2x6 joists between the roof and the drywall and the insulation I am guessing is original from the 1960's so this section of roof ...
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0 votes
0 answers
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Is this raised shingle near the dormer flashing an issue?

My wife noticed a raised shingle coming off the flashing of our upstairs dormer. I'm not very experienced with roof maintenance. My first reaction was that it wasn't a big deal and is probably still ...
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1 vote
1 answer
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Do I have a moisture problem with my soffit?

Looking underneath my gutter, I noticed that the soffit is a bit discolored looking. Looks kind of like mildew or moisture marks. Does this just need some tender-loving-care or do I have a more ...
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1 vote
2 answers
188 views

How do I remove the bottom chord from a shed roof, the right way?

I've got a 16' (length) x 10' (width) saltbox-style shed that I'd like to convert into an office. The roof is supported by simple triangle trusses of 2 x 4's. Each of the trusses is cantilevered out ...
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0 votes
0 answers
27 views

How to identify cause of a leak from a kitchen exhaust roof fan?

TL;DR: contractor installed a new kitchen exhaust duct and fan with roof penetration. Now I have a leak from the duct whenever it snows but is above freezing. Contractor is failing to find the cause, ...
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1 vote
0 answers
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Rain diverter on metal roof

I have a standing-seam metal roof (without gutters), which pitches down over the front door. This causes a couple of issues: It is awkward to go out the door when it is raining, as you need to walk ...
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0 votes
2 answers
88 views

Working with a corrugated polycarbonate roof

I'm working with a veranda roof made out of corrugated polycarbonate similar to this stuff... corrugated plastic sheet. Is there anyway of working with this material from underneath? The roof I'm ...
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3 votes
2 answers
79 views

Cutting supports in attached garage firewall

I have an attached garage with no living quarters above the ceiling. The firewall separating the attic from the garage is finished with drywall up to the roof line. This drywall seems to be mounted to ...
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