How Many Layers Of Shingles Are Allowed On A Roof In Indiana

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 in indiana.

When it s time to replace your roof there are several factors that might lead your roofing professional to recommend adding shingles on top of your existing layers. Your three layer roof is definitely a potential structural concern and homeowners insurance companies might consider three layers of roof shingles. Tear it all off and start from the bare wood. 2 layers is definitly the max in most counties as far as 5 i ve seen it on some older houses up here in ri.

According to the international existing building code homes can be re roofed one time by applying a second layer of roof shingles over the existing one but after that application begins to wear both layers need to be removed before a brand new roof is installed. So any contractor that says he can tell definitly tell without rippng is pulling your leg and it is a common thing to miss in a home insp. Regulations allow a maximum of two layers of shingles on a roof but experts say you shouldn t lay asphalt shingles over an existing roof. However as a general rule you should not add extra shingle layers to your roof if it already has two shingle layers.

An owner must complete and sign the disclosure form and submit the form to a prospective buyer before an offer is accepted for the sale of the real estate. If you have two layers of shingles that are worn out a good alternative would be to remove those layers and replace them with two new ones as opposed to adding on a third layer. Indiana law ic 32 21 5 generally requires sellers of 1 4 unit residential property to complete this form regarding the known physical condition of the property. Most building codes allow up to two layers of organic or fiberglass asphalt shingles.

Three layers is getting up there in weight as well. That limit pertains to roofs with up to a 4 12 pitch. Asphalt shingles typically can have one more layer added over the top two roofs total. On most flat roofs such as epdm tpo or modified it is perfectly acceptable to two layers of roofing.

For many years it was acceptable to put even the third layer. I would tear it all off if your going through the trouble.