Hot answers tagged

30

Bad. Not only are you introducing stink and moisture to your attic, but toxic and potentially explosive gases as well. Decomposing waste materials in public and private sewer and septic systems create sewer gases. Methane is the largest single constituent of sewer gas, which includes an assortment of toxic and non-toxic gases, such as hydrogen sulfide, ...


17

I guess you mean a galvanized or otherwise coated steel. Life depends on weather, specifically rain. In a desert it will last forever. If the current coating is repaired at any damage spots, it will last almost forever. "Repair" could be anything from dabbing on roofing tar to sandblasting and coating with a zinc-rich epoxy (typically used to protect ...


15

That's perfectly normal. I would have preferred to see the vertical joints in the sheathing line up with the rafters, but that's about it. Roofing nails actually should come through about a quarter inch - I'd be more concerned if they didn't.


14

You should fix this (see isherwood's answer), but you don't necessarily need to extend it back out of the roof again, assuming that you have at least one vent to the outside somewhere else in the system. You could instead cap it with an internal drainage vent (also known as an air admittance valve). This lets air in (necessary for good drainage) without ...


14

As a R.R.C. and roofer for over 25 years, this doesn't surprise me. Anyone with a pickup truck and a ladder calls himself a roofer. This is wrong, if they eliminated vents they should have replaced the sheathing. An opening up to 4"x4" can be covered with metal, but anything bigger requires re-sheathing to eliminate a fall hazard. Also the nail pattern ...


12

I would give your business to one of the "is good and stays dry" roofers who are not blatantly trying to fleece you. Now, the other two may be working from the assumption that if you bothered to call a roofer, you have leaks. But they strike me a lying scammers if they are selling you new plywood with no idea if the roof deck is rotten or solid. Plywood ...


12

Clearly this has been a problem for a while and also the standing water and patch job on the flat section of the roof is to blame. There is no real shortcut here, as you can see, so the solution is to remove the roofing, repair the water damage, and then have it re-roofed properly. There are ways to apply a flat roof so that it will not leak but slathering ...


9

A galvanized roof that leaks may have leaky nails Tin roofs are typically held down by nails, and over the years the nails loosen and leak. The new approach is to use nails or screws with an elastomeric rubber pad, and set their compression pressure carefully. I am super fond of roof screws of an appropriate size to not overlarge the old nail holes too ...


9

It is not acceptable that the roofing materials were replaced over the plywood cutouts (which actually look more like breakouts). One can surmise that the stripping crew came one day and removed all the old roofing material and did the breakouts. Before calling it a day they rolled out the underlayment (a.k.a tar paper) and covered over the breakouts in ...


8

WHAT, he eliminated your air vents? Wow, your update is so revealing: 1) sheetmetal is not an acceptable cover over large openings, 2) if sheetmetal was used, it was not nailed to the existing plywood, 3) he eliminated air vents, Sheetmetal is allowed to cover openings in plywood roof sheathing up to 4” x 4” only. Any opening larger needs solid sheathing. (...


7

The Uni Knot is a slip knot that is adjustable. The Hangman's Noose is not typically considered adjustable. The Hangman's Noose when the loop is under load is pulling on the top of the knot as well as conventionally on the bottom of the knot which is truly tightening the knot. They are typically only used with thicker ropes because otherwise you run a risk ...


7

You wear a harness attached to a rope that is thrown over the roof and tied to something solid such as a tree. The harness kit may look like this: The harness is most often used in a manner as shown here. A short connecting rope goes from the middle of the high back over to a D-Clip that then attaches to the main safety rope via a Robe Grab. Rope grabs ...


7

Those nails are used only for holding down the roofing underlayment. They excel at doing so whether it be old school tar paper, or the newer more durable, hi tech roof underlayments.


7

This would be a situation where you'll have to use gutter straps (usually in T or K style): Image credit to acehardware.com They install on the roof decking - make sure to follow the manufacturer's instructions, as you'll be penetrating the singles. Image credit to www.heritagehillweb.org


7

Sometimes the stars align and answers are provided. After i posted my comment this morning I was watching a previous episode of This old house in which they are restoring a New England Victorian house that is regulated by the local historic commission. One of the requirements needed to be met was the restoration of the Yankee Gutters. A web search led me ...


6

There's a couple of different tools you can use: The best tool / way 1 - Electric shears and / or nibblers. These are in my opinion, the best tools you can buy. Shears work fine while nibblers are designed more specifically for corrugated or curved panels. If you're a professional, this is what you need to buy. Fein Nibbler link at Amazon Trumpf Tools ...


6

Most sheathing now is 1/2 to 3/4 at most and a shingle is only about an 1/8 so with that being said the distance with synthetic is about an inch. If you're using a nail gun, which most roofers do, then your coils are 1-1/4 inch long at a low end (they don’t make smaller). So, unless you're hand nailing, yes there will be about 1/4 inch showing. It is normal ...


6

It's a mistake for the roofers to say that the plywood will definitely have to be replaced. However, they may be familiar with homes in your area, that were built around the same time. So they may have experience, that tells them that the decking will likely have to be replaced. Sometimes in situations like this, contractors will pad the estimate with the ...


6

To properly answer this question requires proper interpretation of: Published Building Codes (depending on what part of Canada the residence is in. Canadian Building Codes applicable to the specific region where the Re Roofing is taking place. Some are based on NBC (National Building Code of Canada) some regions are based on ICC (International Code Council ...


6

TBH, it would probably be pretty difficult to lift the edge of the shingles enough to actually be able to nail the drip edge down from above. The shingles should be nailed pretty close to the fascia to prevent them from lifting in the wind, so (IMHO) you're doing pretty good that they were able to slip the drip edge under there to begin with. Personally, ...


5

Pretty much anyone can demo a roof. Now it might take you a ton of time if you don't have the right tools but its not rocket science. There is a lot of trash so you need to get a dumpster. Laying new felt or paper is pretty easy too. But at the same time this isn't something you would get charged a ton of money for and if a crew was doing your roof ...


5

Very unlikely. what would happen is that the snow or ice on the roof would melt somewhat, flow down to the edge of the roof where the attic ends, and refreeze, forming large ice dams. The ice and snow would continue to melt, backing up liquid water against the roof and evenutually finding its way under the shingles and through the sheathing into your home ...


5

It depends on where the drip edge is. At the side, or gabels, of a roof, the drip edge goes over the roofing felt. At the bottom of the roof, the drip edge goes under the roofing felt. I have no idea why Ask This Old House did the drip edge the way they did. The main purpose of underlayment is to keep water away from the decking if it gets under the ...


5

I believe this article should give you some answers: http://www.sbcmag.info/article/2012/truss-storage In short, it all depends on how the trusses look after the time. The article says that they may be left out for a week max and then should be covered, but any time after that just comes down to what the current weather conditions have done to them.


5

There are several ways to do this but given that the building is small, not in the Far East, and obviously not an expensive architecture demonstration, the builder probably simulated carved rafters by adding carved wedges or stacked wedges to standard rafter beams. Given the apparent age of the building, the roof cladding is probably 1" boards fastened ...


5

It’s called “self sealing” shingles (or lack thereof). Shingles are made to self seal to each other by having the sun heat them up (including the asphalt strip on the underside) and the weight of the shingle will cause the asphalt to press into the lower shingle. When the shingle is hung at more than about 6:12 or in a cool environment, then the weight ...


5

Tile roofs can last anywhere from 35 to 50 years, depending on the roofing material installed under the tile. Cracked tile often happen from people walking on them during pressure cleaning or gutter cleaning. Some cracked tiles could even be from the initial installation as inspectors don't usually inspect each tile. There are special adhesives designed to ...


5

If the crack is in a part of the roof that has rafters on either side, it will not matter as long as the rafters on the other side are directly opposite of the ones in the picture. Since the picture cuts off what is beyond the crack or even how long the crack is, it is difficult to determine if the overhang is supported by the ridge to any degree. That would ...


5

Your problem is going to be finding where the leak is coming from. I have found leaks that came in more than 10’ from the entry point. The water can travel under the rolled roofing and drip down at a seam then run on the rafters especially double plates prior to finally coming down. Today I use a FLIR camera I can see the water when it is traveling between ...


4

I think one could feasibly cover a sloped roof with that stuff, but it would be very odd. Most HOAs and neighborhood associations would reject it. You neighbors would be annoyed. If snow or ice accumulations are possible for the climate, it probably would cause random ice sheet falls, which is not an issue for its intended use on level roofing. As some ...


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