I had a roof installed and the contractor used felt instead of asphalt in the 4 valleys. A neighbor's roofer told me this was against code AND the roof would eventually leak. I previously HAD asphalt in the valleys and even had a leak problem with it. Felt appears to be nothing more than thick paper. I have some major concern over the durability of such an installation. Any information would be greatly appreciated.
2007-01-07 07:43:13 · 7 answers · asked by shot 2 in Home & Garden ➔ Maintenance & Repairs
Roofing felt is a fiberglass or polyester fleece impregnated with bituminous impregnating agents (tar, asphaltic bitumen); it is produced in roll form. In some cases mineral materials (e.g. sand) is applied to one side in order to help prevent the material from sticking together while in roll form and to provide protection from atmospheric conditions. A distinction is drawn between tarred board and bitumen board.
Intended use
Roofing felt is used, among other things, for waterproofing roofs to prevent ingress of moisture.
It can be installed in several ways including but not limited to: mechanical fasteners, hot asphalt, cold asphalt (adhesive), non-asphaltic adhesives, and heat (torch, hot air) or a combination of the afore mentioned.
2007-01-07 07:55:41 · answer #1 · answered by SLATE 2 · 0⤊ 0⤋
I can't address the code issue, but roofing felt is what is used in most applications, but as far north as you are, metal would be great,
There is also a product in use that looks like a roll of roofing material with the aggregate on it. This has been around for a few years and isn't the same as roll roofing. This material has an adhesive back and is used as an ice barrier on the bottom three feet of a roof that is subject to ice dam's. I recently covered a complete roof that was too flat for proper drainage, yet I did not want to use rolled roofing or sheet rubber. I covered the roof with this material, and then laid a regular shingle, been 4 years now and not a hint of a leak, This material feels like sandpaper because the aggregate is very fine and when you peal off the plastic sheet on the back it really sticks, so it is used in valleys and then the shingles are laced over it.
2007-01-07 08:33:01 · answer #2 · answered by goodforwho 4 · 0⤊ 0⤋
I don't know the code specifications for your location. However, I have used "felt" which is an asphalt impregnated paper which is classified by weight. This weight is the amount of pounds of material per 100 square feet. The heavier the felt, the thicker it is. Usually, vallies are layered first with felt, then a flashing metal is placed over that. The felt is primarily a moisture barrier placed between the finish roofing material (shingles, metal, etc.) and the substrate (roofing grade plywood). To properly waterproof the valley, the shingles should be "laced" from one side to the other. Another method is to cut the shingles to from a sharp edge in the center of the valley. For this procedure, a metal flashing is required to be laid under the shingles. To find out exactly what the codes are for your location, contact your local Code Enforcement agency.
2007-01-07 07:52:43 · answer #3 · answered by John Sr. 2 · 0⤊ 0⤋
i'm a roofer in CT, we put down ice and water shield in valleys. then weave the shingles or overlap and cut the top layer of shingles in the valley. on some jobs we put in metal, copper or aluminum, or roll roofing, then cut the shingles on both sides. you don't say if your old roofing was removed or not, but it would need to be to use i & w shield, at least in the valleys. it sounds like what he did is correct and acceptable even if this was just a re roof. it will be fine as long as no one walks or steps in the valleys. any tar(asphalt) that used to be in your valleys was most likely a temporary repair to patch a leak or ward off one. there are many different ways to do a roof depending on how much you agree or want to spend. if you or your roofer pulled the proper permits, your local building inspector should have checked the work out and signed off on it's correctness. the correct way to have work done is to get multiple quotes, get references, check them, check with the BBB, if your state requires registration check with the dept. in charge of it, sign a contract with the details of the work and materials to be used for how much money with what kind of guarantee and payment schedule and work start and finish dates. but the most important thing to do is NEVER take the lowest bid!! there are many ways to do the same roof, from a cheap roll roof cut valley to a copper cut valley, and everything in between. the neighbors roofer may have been just trying to worry you or make you feel bad, because he didn't get the job! as long as your roofer is established and stands behind his work you don't have anything to worry about. good luck with your new roof!
2007-01-07 11:15:26 · answer #4 · answered by car dude 5 · 0⤊ 0⤋
There are 1000's of flat felt roofs. Felt is a layered bitumen impregnated cloth the place as asphalt is poured onto a arranged floor. i'm helpful that they might insure a felt roof yet why not ask them particularly? in the event that they don't comprehend the version then i would not be happy to do enterprise with them.
2016-10-30 06:39:58 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The man might be talking about "felt" paper that is felt impregnated with tar: sometimes construction people have a language of their own, and they think everyone should speak constructioneze. So, it is asphalt paper by another word but, find out for sure.
2007-01-07 08:12:28 · answer #6 · answered by cowboydoc 7 · 0⤊ 0⤋
Do you have a contract with this contractor or was it a verbal agreement? If you have a contract you can take him to small claims court for the amount that it cost you to have the vallies installed for. If no contract you will have to pay to have someone install the valleys. He free from accountability.
2007-01-07 07:53:26 · answer #7 · answered by 1TON 3 · 0⤊ 0⤋