For many years it was acceptable to put even the third layer.
How many layers of roof shingles are allowed in ny.
On most flat roofs such as epdm tpo or modified it is perfectly acceptable to two layers of roofing.
Consistent leaks shingle loss and mold growth can all point to the need for a new roof.
Re roof or strip the roof down.
How many layers of shingles are allowed on a roof.
Re roof or strip the roof down.
Any amount of short term savings you might see from a layover roof installation is not far outweighed by the longer term peace of mind that comes from knowing that the integrity of the decking has been confirmed.
Asphalt shingles typically can have one more layer added over the top two roofs total.
Now you just have to decide whether to remove the existing roof shingles or recover the roof.
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 new shingles or whether you will have another layer of shingles placed on top of the existing layer.
Although the new york state building code does allow for up to two layers of roof materials.
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.