Generally it is fine to have three layers of shingle but you should check this with your local building permit people and you should make sure that your roof and the rest of the structure have the strength to cope with the extra weight.
How many layer of roof shingles in vigo county.
County or municipality with whom the interested person has the dispute until overruled under ic 4 21 5.
A written interpretatio n of a building law binds all counties and municipalities if the office of the state building commissioner publishes the written interpretation of the building law in the indiana register under ic 4 22 7 7 b.
If the structure can support the added weight a typical 20 square 2 000 square foot reroof will cost at least 1 000 less than a tear off job.
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.
Roofing layers from the framing to the shingles.
The soundness of the building you re re roofing is another consideration.
Adding a second or third layer of shingles adds significant weight to the structure.
For example cedar or tile roofs are only allowed one layer.
The homeowner will have two layers of shingles protecting the roof and the home is less likely to have ice dams he says.
While this is acceptable under the florida building code it is the maximum number of layers allowable.
However this depends upon the roof materials.
Generally it is fine to have three layers of shingle codes but you should check this is the case with your local building permit people and you should make sure that your roof and the rest of the structure have the strength to cope with the extra weight.
In the portland area as of 2018 the current code allows up to three layers if the current layer is in good condition.
This roofing system has two layers of material.
For extra resilience to the.
Richards also estimates that the homeowner saves at least 1 000 in costs associated with removing and properly disposing of the existing shingles.
The average cost of a brand new roof can run anywhere from 4 500 for an asphalt shingle roof in vigo county to 25 500 and up for a metal roof in vigo county.
A slate roof can cost the average homeowner as much as 155k to replace.
When replacement is required there will likely be an added expense in removal and disposal of the material it s not a deficiency so i just give an informational statement.