How Legal Is 3 Layers Of Shingles On A Roof

Re roof or strip the roof down.

How legal is 3 layers of shingles on a roof.

Most building codes allow up to two layers of organic or fiberglass asphalt shingles. If the roof has multiple layers typically the insurance company will only insure the top layer. Benefits of adding multiple shingle layers. For example there s a starter course of roofing shingles installed at the eaves before the roofing shingles you can see.

1 the roof was recently re done with 3 layers of shingles and this is not allowed by code which is the case in most places 2 no building permit which is typically required was pulled before the roof was done. Most cities and towns allow a maximum of two layers of shingles says chad muth president of muth company roofing in westerville ohio. According to the international existing building code homes can be re roofed one time by applying a second layer of roof shingles over the existing one but after that application begins to wear both layers need to be removed before a brand new roof is installed. So we ll start at the bottom of the deck and work our way up through all the roofing layers until we reach the shingles and sunshine above your roof.

Pros to overlaying a shingle roof. Most building codes allow this but is it a good idea. Now you just have to decide whether to remove the existing roof shingles or recover the roof. In both cases more layers means a more costly roof claim.

Then you have a good case against the seller. There are important reasons why this code is in effect. When a buyer is purchasing a home their homeowner s insurance carrier will inquire about the age of the roof and the number of layers. Layers of shingles on top of each other shorten the life of the roof due to the newest layer sitting on an uneven lower surfaces.

So let s say we have a hail storm and the roof takes a beating. But contractors who spoke with angie s list say best practices call for stripping the roof down to the wood deck to inspect it before installing a new roof. When it s time to replace your roof there are several factors that might lead your roofing professional to recommend adding shingles on top of your existing. A bundle or package of shingles weighs about 70 pounds depending on the type of composition shingle.

First of all multiple layers of shingles simply means layering a new asphalt shingle roof on top of the old one rather than stripping the roof completely to expose the sheathing and replacing it with new shingles. The best life will come from removing all the old layers down to roof boards or sheathing and then laying down the new roof on a well repaired flat surface. Roofing layers from the framing to the shingles. Here are the pros and cons.