How Many Layers Of Roof Shingles Are Allowed

This will also be constrained by other factors.

How many layers of roof shingles are allowed.

Most building codes allow two layers of organic or fiberglass asphalt shingles on roofs with a 4 12 pitch or less and three layers on steeper roofs. Once you have discovered how many layers of roof shingles are allowed the next decision you should make is whether you will have the existing shingles completely removed to make way for two or three new layers or whether you will have another layer of shingles placed on top of the existing layer. Asphalt shingles typically can have one more layer added over the top two roofs total. Most cities and towns allow a maximum of two layers of shingles says chad muth president of muth company roofing in westerville ohio.

Did a home inspection yesterday there was two layers of architectural shingles. The contractor may do a walk on the roof and also inspect from the attic for any rot before installing a second layer of shingles. This was down on the coastal section of naples fl according to the wind map this is 140mph i can t find anything in the fbc on two layers. Consistent leaks shingle loss and mold growth can all point to the need for a new roof.

On most flat roofs such as epdm tpo or modified it is perfectly acceptable to two layers of roofing. I m not sure about milford but i personally would never have more than 2 layers for all the reasons stated in my post above. 30 felt old roof covering and then new roof covering. Eliminating the tearoff can easily save 1 000 or more on a new roof but you re really just delaying the cost.

In some instances 3 layers may be allowed but this is rare. Steep sloped roof products such as tile slate metal and shakes only allow one layer. Three layers of roof shingles too many for an insurance company. Most areas only allow for a maximum of two layers.

When it s time to replace the roof again and you have no choice but to start anew two layers is the maximum allowed in most areas you ll have to pay extra for the two layer tearoff and disposal. For many years it was acceptable to put even the third layer. A roofing contractor will know how many layers of roof shingles are allowed in your area for your building but it is normal that you will be permitted up to three layers of shingles. I live in milford pa how many layer of asphalt are allowed on a roof.

Now you just have to decide whether to remove the existing roof shingles or recover the roof. I know this is incorrect especially down here in florida with the heat and being in the high wind debris zone. How many layers of shingles are allowed on a roof. In most cases two layers of shingles is advisable and three aren t normally required but if you live in an area that suffers from particularly strong wind or.

Obviously having the old shingles removed and. So how many layers of roof shingles are allowed.