2 Layers Of Shingles On Roof

Replacing a roof can be very expensive and exhausting at the same time.

2 layers of shingles on roof.

So let s say we have a hail storm and the roof takes a beating. Decra shingle installation guidelines over 2 layers of asphalt shingles follow the local code. A bundle or package of shingles weighs about 70 pounds depending on the type of composition shingle. Why roof shingles work best in single layers.

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. The biggest mistake people make when layering roofing is to purchase cheap shingles for the new roof. When a home has two layers of shingles the trusses are supporting twice the normal weight of a single layer roof. This is especially true if you ve overlayed your new shingles on top of warped shingles.

A roof is one of the most vital components of a house. Framing includes the roof trusses that sit at the top of your house and support the weight of all the materials used to build your roof. Pros and cons of adding a second layer of shingles. Ask your roofer about recycling options for old shingles.

If you have done some serious research on roofing then you have probably heard about adding a second layer of shingles on top of the old ones. Posted july 31 2018 by onpage marie. When shingles laying on two roof planes approach each other in a valley weave the layers of shingles across the valley to create an integrated unbroken water barrier across the valley. Fasteners course with full panels.

They seldom consider that in 15 years when their roofing once again fails they will have to pay significantly more to have someone remove both layers of shingles and apply new ones. Old shingles are used by local municipalities in roswell and other local towns to create roads. Roofing layers from the framing to the shingles. The temporary savings you receive from adding a second layer of shingles does not outweigh the negative aspects.

If the roof has multiple layers typically the insurance company will only insure the top layer. On a 1 200 square foot home that s an additional 3 000 to 4 000 pounds of shingles for the second layer. The importance of quality roof shingles. Apply a liberal amount of plastic roof cement at the base of any fixtures plumbing pipes or roof vents which break the plane of the roof surface.