When they tell me what neighborhood they re in i can also make a good guess about how many layers of shingles are already on the roof.
How many layers of shingles are allowed on a roof in ohio.
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.
Fasteners for asphalt shingles shall be galvanized stainless steel aluminum or copper roofing nails minimum 12 gage 0 105 inch 2 67 mm shank with a minimum 3 8 inch diameter 9 5 mm head of a length to penetrate through the roofing materials and a minimum of 3 4 inch 19 1 mm into the roof sheathing.
On most flat roofs such as epdm tpo or modified it is perfectly acceptable to two layers of roofing.
Now you just have to decide whether to remove the existing roof shingles or recover the roof.
If it s 15 years old and they ve noticed loose granules washing off the shingles or running out of the downspouts it s a reroof candidate.
For example cedar or tile roofs are only allowed one layer.
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.
Other factors to consider.
Consistent leaks shingle loss and mold growth can all point to the need for a new roof.
The average 30 square roof uses 90 bundles of shingles and a bundle of asphalt roofing shingles weighs about 100 pounds which means you re putting roughly 9 000 additional pounds of weight on your roof.
907 3 recovering versus replacement.
Most cities and towns allow a maximum of two layers of shingles says chad muth president of muth company roofing in westerville ohio.
The soundness of the building you re re roofing is another consideration.
I live in milford pa how many layer of asphalt are allowed on a roof.
How many layers of fiberglass shingles can i put on a roof without removing the existing roof coverings.
Re roof or strip the roof down.
December 18 2019 by taylor made roofing signs that your roof has reached the end of its life are typically fairly obvious.
Asphalt shingles typically can have one more layer added over the top two roofs total.
For many years it was acceptable to put even the third layer.
New roof coverings shall not be installed without first removing all existing layers of roof coverings where any of the following conditions exist.
Three layers of roof shingles too many for an insurance company.
If the roof is say eight years old it probably just needs a repair.
Steep sloped roof products such as tile slate metal and shakes only allow one layer.
How many layers of shingles are allowed on a roof.
