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
42 views

How can I build a shed in two halves and join them without the roof leaking?

I am building a shed and I need to build it in two halves so I can take it off the foundation if I need to. The problem is that due to the dimensions, I have to split it in such a way the split line ...
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0answers
21 views

Can I extend attic vents so they don't get blocked by snow?

I have 2 square low profile attic vents on the detached garage but I'm pretty sure they are blocked with snow during the winter. If I should alter them, are there extensions available to raise these ...
2
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0answers
16 views

How best to add insulation under a rubber roof with an air gap?

I'm trying to find out if I can insulate my ceiling. Half the house has attic, half does not. Everywhere (from top down) I have rubber roof, 1" foam, wood planks, 2x8. Then, in the attic, that is ...
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0answers
25 views

No drip edge installed [closed]

My wife and I bought a 1 story home with a basement in southern new Jersey back in 2006. When we had the home inspected it was recommended to remove the existing 2 layers of shingles and start fresh ...
2
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1answer
54 views

Should I keep downspout extenders installed during the winter?

Should downspout extenders be kept installed during winter? For some reason, I think they facilitate ice formation to creep up the spout? When I say downspout extenders, I mean these
4
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1answer
75 views

Is Roof De-Icing Cable good for the roof?

Is heat tape or Roof De-Icing Cable good for the roof?
1
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1answer
95 views

How do I tie a new roof in to an existing roof with a pitch transition?

I added a room to the side of my house, and the new roof goes onto the existing roof. I am almost done roofing it. The image below depicts the current status. I put roofing felt down under the two ...
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1answer
27 views

Heating Coils on a metal roof section

I have a metal edging on my roof in an area about 4 wide. Can I run heating coils over this metal section of the roof,because it seems to be an area that has ice dams. Presently I have a coil above ...
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1answer
48 views

Glass deck above basement addition [closed]

We're planning to expand our basement underneath our deck and would ideally like to cover this section of the deck in glass as in this photo. (Posted: Wear skirts at your own risk!) Our architect ...
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0answers
31 views

rain cover for basement steps

I'm making a plywood rain cover for basement steps. The area is 5' wide by 8 'long. The height will be 8'. I want to make concrete footings for the support posts. What size and width of hole for ...
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0answers
12 views

Where should the isolation be in a false ceiling?

I am building a false ceiling in plasterboard. I bought some boards for isolation. Where should this be installed? Should I put it next to the roof leaving a air chamber between the plasterboard and ...
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1answer
102 views

How should the top edge of an asphalt shed-type roof be finished?

Our contemporary house has a shed roof that is finished with a layer of aluminum flashing nailed through the top course of shingles. The flashing turns down and just covers the top edge of the ...
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1answer
64 views

How can I add insulation above my finished ceiling?

What is the cheapest option for adding insulation above a finished ceiling? There has never been any in the spot that I need it. Should I take the roof off or have it sprayed in? The space is 20 feet ...
2
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1answer
72 views

Do I need soffit vents and can I add them without taking the roof apart?

Last year, we re-roofed out 83-year old house. We removed the 3-layer cedar/asphalt shingles and laid plywood decking, 30# paper, ice-barrier and 26-gauge metal roofing. As far as ventilation, we just ...
1
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1answer
110 views

Is that a leak from roof into my ceiling?

I found a spot into my ceiling that was not there before. Spot looks like this. We had rain last night and i am worried if there is a leakage in the roof. This is what is on top of it. Is this ...
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2answers
45 views

Can I put roof sheathing on vertically instead of horizontally?

I would like to put my roof sheathing on vertical instead of horizontal. It will be an 18 by 12 patio. Rafters are 2 x 6; 16 in on center. It will be 1/2" in plywood which will be visible from below
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1answer
67 views

Is there a tool that will crimp close the end the ribs on a metal roofing panels?

I saw a building that had the exposed bottom edge of the ribs in the metal roofing panels crimped closed so bugs couldn't craw or fly up them. It was very neat/professional looking as if it had been ...
0
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1answer
55 views

Repairing a gap under a eave.

Last night I heard scratching in the wall and upon investigation found that a squirrel had managed to knock loose a piece of wood (I assume as there was no covering to be found) in the eaves where one ...
2
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3answers
125 views

How should I support upright posts on a slab with no footer?

We are wanting to use a structural ridge beam to put a new roof on our house. I have been talking with an engineer who said that we need to determine how big the footer is under our slab. However, ...
2
votes
3answers
110 views

Insulation options for narrow ceiling space

I've got a flat roof ( wooden, sealed with tar and then roofing iron on top of that ) with a 30 cm gap between the ceiling. Not really enough for someone to crawl in unless skinny. There's no ...
3
votes
1answer
84 views

Should my chimney sit on my roof?

I am renting a house built in the 1940s. The mortar around the brick was cracked causing leaks. Someone had built a chimney around the outside of the original chimney. So outside it's twice the size ...
0
votes
1answer
38 views

How to stop this small roof from leaking?

We have water stains in the ceiling drywall underneath this small section of roof. I suspect it's due to the loose metal that's on top of the shingles. The fasteners on the top of the metal are ...
1
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1answer
145 views

How to flash a roof valley on parallel roofs

I'm redoing my entire roof (roof deck included). The previous owner built a carport parallel to the house. The carport is a permanent structure with a normal roof - trusses and whatnot of equal ...
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4answers
276 views

Should I use a Ridge/Soffit vent or Attic Fan?

I am getting ready to redo the roof on our house (shingles and some sheathing) and I am wondering what kind of venting I should add to the roof. The roof currently is not vented at all and as a result ...
0
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1answer
77 views

Installing roof truss diagonal bracing: splice plate where braces cross?

I'm looking at installing diagonal bracing to my roof trusses as described on page 77 of the document at http://www.dwbgroup.co.uk/files/8013/5284/7141/Gang_Nail_Trussed_Rafter_Manual.pdf but am ...
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0answers
45 views

Patio cover advice

I plan to build a patio cover sometime soon. It will be my first large project with lumber. I am primarily a model maker and am looking to expand my skills and expertise. When I moved into the house, ...
2
votes
2answers
364 views

Ways to Safely Repair 45 Degree Pitched Roof without Jacks?

What methods can a person use to safely repair a roof that is slanted at a 45 degree (or greater) angle without using Roof Jacks? Is there anyway it is possible for a person to safely walk on such a ...
0
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2answers
55 views

Best/Most Affordable Material to use for Long Rafter

I am getting ready to put a new roof on our house (changing the structure and all) and I am wondering what the best and most affordable kind of lumber or material is for the job. I need to span a 26' ...
1
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2answers
70 views

How do I stress test a roof for leaks?

I am about to have some ceiling work done on my house that has previously had roof leaks. I would like to be sure that the repairs to the roof are successful. How would I go about stress testing the ...
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0answers
73 views

Ideas/Advice for my Roof Rebuild

I need some advice about drawing up blueprints for a new roof on our house. Thanks to some shoddy workmanship on an addition before we bought the house we need to completely remove the existing roof ...
4
votes
3answers
132 views

How do I fix this missing soffit?

After this past harsh winter I noticed this spot on our house where it looks like some soffit panels had fallen out. Honestly, I'm not sure what was in the space prior; I never found any panels on ...
0
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0answers
20 views

Can a “tired” tarboard roof be updated without replacing it altogether?

I have a cheaply built wooden cottage in an arid climate with occasional rain during the winter. The roof consists of planks with tarboard nailed on top. The planks appear to be in poor condition ...
0
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1answer
311 views

How far apart should I space rafters for a 13ft patio?

I'm looking to build a patio roof (shed style) and need to span 13ft. I've found several span tables online, some of them with different maximum distances between the rafters. Is it ok to use 2x8s ...
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1answer
69 views

How can I add more insulation to this roof?

We've recently leased an office in a tropical climate and I am trying to figure out the best way to increase the insulation in the building. So far I've researched: spray insulation (options are ...
0
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1answer
129 views

What are the advantages and disadvantages of elastomeric coatings versus shingles?

I'm ready to reroof my house and want to consider an elastomeric coating rather than replacing the existing shingles. I'd use a local contractor either way
0
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0answers
133 views

Owens Corning Duration vs. GAF Timberline

Is anyone familiar with the Owens Corning Duration (Driftwood) and GAF Timberline HD roofs (Weathered Wood). They are similar in color but one has more variance of color (OC) and don't know how it ...
0
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1answer
178 views

Is it code-compliant to attach a patio to the roof like this?

I want to attach a patio cover to my house. Trouble is the clearance between the window and the roof rafters is too small for a ledger. I was considering the option of attaching to the roof top like ...
1
vote
1answer
69 views

Who do I call, roofer or plumber?

Last fall, I noticed my first floor kitchen had a leak that dripped down through the lighting fixture. This happened during a pretty strong rainfall. There is a bathroom above it but it had not been ...
3
votes
1answer
105 views

Why is there tar leaking into my attic?

I was doing my own home inspection today to keep up on maintenance, and I found something pretty unusual in the attic. On one of the boards in the roof a tar-like substance is leaking through the ...
1
vote
2answers
763 views

How to attach ledger board to under-roof siding?

I want to attach a ledger board, over the existing wood siding. Something similar to this, but immediately underneath the roof How do I determine where I need to drill the holes to attach it to ...
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0answers
83 views

How can we be sure the hooks for a porch swing go into joists in our covered roof?

We want to install a drainage roof over our existing patio and hang a porch swing from it. What is best, to hang the swing's I-hooks first or put the roof on first? Our patio is underneath our ...
2
votes
1answer
139 views

What should I do about shingles that are stuck to the sheathing?

I'm so pleased to find this diy.stackexchange. I'm in the middle of replacing a small roof above an entry-way. It is an area of about 100 square feet (9.3 square meters). The top layer of shingles ...
1
vote
1answer
126 views

What's the true longevity of exposed fastener metal roofs?

I want to replace my roof. Exposed-fastener metal roofs are popular and common where I live, but nobody nearby has owned one long enough to really comment on the longevity. I worry that over time, the ...
0
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0answers
35 views

How can I reduce the amount of dirt in my attic without affecting its ventilation?

Our house is a 1930's suburban build on the outskirts of London, UK. It has its original roof complete with massive gaps between the roof tiles and no felt. While this does provide great roof ...
1
vote
1answer
104 views

Is it ok to re-slope one of my gutters to another gutter?

Right now, on one side of my roof, I have two gutters that come together at an inside corner. Each gutter goes to the edge of the house with a downspout, which would mean that the inside corner is the ...
0
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3answers
233 views

Why should I repair/replace roof just because it's old?

My roof is old. Shingles are worn down, some are torn, and there are some nails coming through some shingles. I'm being told by some contractors there for other reasons that my roof needs immediate ...
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0answers
110 views

Dormers with ridge vents lower than main ridgeline

My roof contractor placed ridge vents on all peaks on my home, including the dormers. So, I have the main attic space, which is vented by a ridge vent running the entire length. I have plenty of ...
2
votes
3answers
118 views

Leaking flat roof

We have a "flat roof" (actually a very slight pitch) which is made from lead with folded seams. It is rectangular, with a slight slope toward one long side where there is a gutter with a downspout at ...
0
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1answer
72 views

Help translate terminology relating to flat roof construction

I just bought a house which had an extension done 12 years ago. I am about to do some work in this area and want to understand what has been done before. Below is a screen shot of the bits of the ...
3
votes
1answer
60 views

Which kind of roof coating to use to treat low pitch mod bit roof?

My city row house is 100+ years old and has a low pitch modified bitumen roof. It looks like a one piece asphalt or tar sheet covering of the roof. I bought the house 7 years ago and never had it ...