For many years it was acceptable to put even the third layer.
How many layers of shingles are allowed on a roof in michigan.
How many layers of shingles are allowed on a 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.
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.
I live in milford pa how many layer of asphalt are allowed on a roof.
Other factors to consider.
How many layers of roofing are allowed.
Asphalt shingles typically can have one more layer added over the top two roofs total.
Not many people would argue with the idea that quality trumps quantity.
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.
Why two layers is too many read more.
December 18 2019 by taylor made roofing signs that your roof has reached the end of its life are typically fairly obvious.
On most flat roofs such as epdm tpo or modified it is perfectly acceptable to two layers of roofing.
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.
May nail guns be used.
The soundness of the building you re re roofing is another consideration.
Yet we still run into homes with 2 or more layers on a fairly frequent basis.
There are some advantages to roofing over existing shingles says dale richards owner of richards roofing in troy michigan.
Steep sloped roof products such as tile slate metal and shakes only allow one layer.
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.
Re roof or strip the roof down.
The homeowner will have two layers of shingles protecting the roof and the home is less likely to have ice dams he says.
For example cedar or tile roofs are only allowed one layer.
If properly adjusted and used correctly a nail gun is allowed.
If the current roof is in poor shape re covering may not be a sound choice.
Adding a second or third layer of shingles adds significant weight to the structure.
Consistent leaks shingle loss and mold growth can all point to the need for a new roof.
Yes the permit holder must call for a final roof inspection.
There may be a mid roof inspection required please consult the building department when you receive your permit.
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.
