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.
How many layers of roofing are allowed in ny.
Re roof or strip the roof down.
Now you just have to decide whether to remove the existing roof shingles or recover the roof.
The weight of the roof is of concern roof trusses and decks are only able to hold up so many layers of roofing.
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.
For example cedar or tile roofs are only allowed one layer.
Usually shingles are replaced every 15 to 20 years.
However if it is now time for a new roof building code requires that all three layers have to be removed.
I live in milford pa how many layer of asphalt are allowed on a roof.
Consistent leaks shingle loss and mold growth can all point to the need for a new roof.
How many layers of shingles are allowed on a roof.
Standard roofing practices allow for three layers of roofing shingles.
Most cities and towns allow a maximum of two layers of shingles says chad muth president of muth company roofing in westerville ohio.
Re roof or strip the roof down.
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.
In the portland area as of 2018 the current code allows up to three layers if the current layer is in good condition.
However this depends upon the roof materials.
Three layers of roof shingles too many for an insurance company.
December 18 2019 by taylor made roofing signs that your roof has reached the end of its life are typically fairly obvious.
The soundness of the building you re re roofing is another consideration.
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.
Another great perk of tearing off is that it exposing the roof deck.
Adding more weight than your roof is designed for can cause structural damage to the building and cause a dangerous situation for anyone in it.