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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35 views

Calculating center beam for purlins on porch roof

I'm building a porch roof as seen in the picture below. The blue boards will be 2x6x12 on 24" centers. Knowing this, how do I determine the size of the red boards? I do plan on doubling each red ...
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1answer
35 views

Is it okay to remove the roof gutter when installing patio cover connected to the roof fascia?

I want to install an insulated patio roof over a balcony by connecting it to the house roof fascia. The patio roof panels are too thick to fit under the house roof gutter. Is it okay to remove the ...
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2answers
44 views

Where to find maximum load for roof terrace

I live at the top of a mid-rise block of flats and the top flats are inset slightly such that each has a balcony/terrace area. I'd like to put some sizeable planters in this space (175 litres). ...
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1answer
105 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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128 views

Building a 30x30 room in a 30x50 house?

Edit: I really appreciate all the replies, much food for thought. Below I will try to elaborate on a few things. I do have a design that I will post here in a minute. This house would be in a Northern ...
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26 views

Aliminum siding --wind damage

On a very windy day, an 8-foot long strip of metal siding came off the side of my home, right at the roof line, above my 2nd story aluminum siding. Now the snow has come in for the winter with 4 ...
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3answers
64 views

Is there an optimum house roof pitch to withstand strong winds?

I'm considering a metal hip roof for a new build with a rectangular footprint (no valleys) and the wider sides will face north and south. There doesn't seem to be much of a consensus among home ...
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1answer
40 views

Mould and Discoloration of roof tiles near chimney

What could be the possible reason(s) for building up of mould / discoloration of the roof tiles near the chimney? What are the DIY / expert solutions to fix this? I am attaching an image of the roof ...
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22 views

Can I use a ventilation cap as a chimney/flue cap?

I have a an old roof cap I found in a junk yard -- appears to be in good shape. Can I place this type of cap on top of a chimney flue (from my furnace/hot-water heater)?? or Is the design ...
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1answer
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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1answer
52 views

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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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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35 views

What to do with roof leaking down the end gable?

I'm renting a house in the north of England. Currently we have a storm, and my roof is leaking. There's not too much water in my upstairs rooms yet. I read about this online, and it says that while ...
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1answer
64 views

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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3answers
60 views

Covered deck roof beam support at house

I am adding a covered deck and attaching to my house. I want to attach it like the project about which funtastic asked this forum May 20 '14 at 6:47 and was given a response to his question by ...
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Is this roof design with rafters, gussets and ties correct?

The width is 16' so each side is a 2x6x10' board. The gussets will be plywood and the ties will be simple 2x4s. My questions are: Is this design okay, it's hard to find examples of gussets used like ...
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Is this an appropriate roof setup

I am creating a standard A frame roof (4.5:12 or 5:12 pitch) for my shed using rafters and a ridge board. The ridge board is 2x8 and is spanning 14 feet for the length of the shed (12x14). I am using ...
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4answers
3k views

Rafters separating from ceiling

I recently bought a house and discovered that the rafters in the attic are separating from the ceiling. The roof does not seem to be sagging, and only the rafters on one side of the attic are ...
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3answers
700 views

Radon system water leak in attic

In my attic there is (what I think is) the fan part of a radon mitigation system. There's a lip, and water pools there, then overflows and gets water in the attic. It seems to be worse when it rains. ...
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1answer
48 views

Exhaust fan from ceiling is dropping water, but the roof might show a bigger problem

I'm living in the Northeast coasts, and I saw my exhaust fan from the ceiling is dropping water this morning. So this afternoon, I access my attic to see the inner roof and see a potentially bigger ...
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1answer
51 views

Functionality of a roof vent pipe

There is a pipe vent sticking out of the roof, in which I need to determine the functionality of. What is this pipe vent for?
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33 views

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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2answers
115 views

How to repair a Rubbermaid resin shed roof

I picked up one of these rubbermaid resin sheds used a few weeks ago. It needed a good powerwash, and someone had lost the original hardware so they put a bunch of screws in, no biggies. Topping off ...
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1answer
72 views

Rain shelter for tablesaw

I'd like to build some kind of simple shelter on my uncovered deck so that I can use my tablesaw outside when it is raining. I was hoping for something simple that I could make from 2x4s, rope, tarp ...
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1answer
132 views

How much weight can my garage beams carry?

I have a bed rack and tent on the bed of my pickup truck that I‘d like to get on and off easily. I am thinking of purchasing a hoist system for my garage: https://garagesmart.com/products/truck-top-...
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3answers
1k views

Should I install soffit or gable venting with a 3:12 pitch roof?

Been trying to find a reputable and concrete answer as to what type of ventilation we should use on our ranch house that has a 3/12 pitch shingled roof. The house is located in the Cincinnati Ohio ...
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1answer
37 views

Waterproofer Elastomeric Roof Sealant - sticky

I have a walk out terrace. I applied Waterproofer Elastomeric Roof Sealant (Henry). It looks great and its reflective. However, after 3 weeks its still sticky. Is it supposed to be sticky for that ...
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5answers
295 views

How to safely place ladder over porch overhang to get to Gable Peak?

I am looking to do some work at the peak of the gable shown in the picture. It's about 25ft to the peak from the walk way. I don't have an assistant, so I am looking for advice on how to safely place ...
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1answer
68 views

How to install k-style gutter guards

I have 5" k-style gutters and am attempting to install guards on them myself. I picked up samples of 2 different styles at my local big box store; both of these are advertised as fitting 4", ...
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46 views

What beam size for a pavilion with roof on this pergola?

I am designing a pavilion roof that will replace the pergola that we currently have. I plan to strip down the pergola roof to just the posts, then rebuild from there. I will place beams to sit on top ...
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26 views

attic remodel - insulation, ventilation, and general questions

it's time to really get to work on my attic remodell. House is gable roof home with continuous soffit vents (of a kind - my home doesn't have eaves really, there is only a tiny amount of overhang, so ...
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25 views

What connector to use at corner for two beams and post?

I'm trying to build a shed-roof pavilion. Specs: 6x6 Posts 3-ply 2x12 beams My question is how do I connect the 3-ply beams with another beam to the post at the corner flush? I found a Simpson ...
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2answers
232 views

Finding guards for your gutters when you don't know the make or model

Several years ago I let the guy who pressure washed our house convince me to take out the gutter guards. I have come to deeply regret this decision. My gutters are constantly clogging, and I'm ...
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1answer
102 views

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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47 views

Increasing air intake in the attic to prevent ice buildup on the roof during winter

We bought a townhouse in 2018 in a Canadian city where we have frequent snowfall during winter. Here are pictures of the back and front of the house. In the last two years, we have had ice dams on ...
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97 views

If I use gussets and hurricane ties can I skip the collar and rafter ties for a 16x24 shed build?

I want to have high ceilings for storage so I'd prefer to have no rafter ties and I figured if I have the gussets I can skip the collar ties too. The ties are cheap enough to install which I think ...
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1answer
54 views

Rafter damage, is this white ants?

I was inspecting my roof today as I believe that I have some possums in the roof. I Looked at one rafter and saw some damage. Is this white ants? Only one rafter has this damage, no others around at ...
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1answer
25 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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2answers
71 views

How to add a removable cover to a roof-hole?

I had to cut a 10" diameter hole in the roof of our pumphouse because the pump needed to be replaced, and the pipes attached to it are ~20ft long each. Pipes being removed from pumphouse ...
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2answers
70 views

Filling depression in a Flat Roof with Sand and Roofing Rubber?

I have a row house with a "flat roof" meaning it actually has a small grade so that water runs off the back. However, towards the middle of the roof there is a depression that allows an inch ...
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2answers
113 views

What could this tube sticking out of the roof be ? It was directly over the old ac system

We moved into this mobile home with a very old ac unit and we had a new one installed. The people who installed the new one said there was a hole and they weren’t sure what it lead to so they just ...
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14 views

Flared Skylight Shaft Framing

Any tips for framing out a skylight shaft that’s flared/slanted on all 4 sides? The roof is pitched, interior ceiling is flat. Where I am struggling is how to frame up the sides, no issue with getting ...
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64 views

Rafters directly to steel beam with structural screws?

I'm building a patio cover. I have 2x6 rafters that will sit on top a steel C-beam. My first thought was to bolt a 2x4 to the top of the beam and use Simpson hangers to attach the rafters. I also have ...
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84 views

How much garage ventilation is necessary?

The Background I have a 2-car, attached garage with additional shop space. The garage area is roughly 19x21 while the shop space is roughly 12x27 for a total of ~725 sq ft. See the very not to scale ...
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2answers
2k views

Sacrificial Barn Roof

So I am building a rather large (large for me anyway) barn/sheep shelter. It will measure 16x48 when complete. I have already started the framing, as you can see in the pics (the diagonal pieces are ...
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2answers
100 views

Leaky Roof after new shingles were installed

I live in an 'old' house that was not very well cared for. The original home was built in 1910 and has had several add ons that do not make sense with the roofs to prove it. The original house has a ...
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2answers
103 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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1answer
87 views

Unknown ceiling/roof beam installed in old renovation

This house has a shallow (approx ~15°) gable roof, and raked interior ceilings to match. In past renovations, a large horizontal beam was installed which runs the entire length of the house, on the ...
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2answers
89 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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