How Many Layers For Fixing The Roof

However in almost all areas it is not acceptable to install more than two layers of roofing on any commercial building.

How many layers for fixing the roof.

A roofing contractor will know exactly how many layers of roof shingles are allowed in your area for your building but it is normal that you will be permitted up to three layers of shingles. Depending on the current material of the roof which is currently being used it may be wise to consider either a layer of epdm or tpo which are both known to be very durable for flat roofs. For many years it was acceptable to put even the third layer. As mentioned above homeowners are legally limited to two layer of roof shingles.

Here are the layers of a roof in order of application bottom to top. Richards also estimates that the homeowner saves at least 1 000 in costs associated with removing and properly disposing of the existing shingles. The homeowner will have two layers of shingles protecting the roof and the home is less likely to have ice dams he says. There are some advantages to roofing over existing shingles says dale richards owner of richards roofing in troy michigan.

Therefore if you already have two layers you ll need a full tear off. Every roof can be different in certain ways. Epdm roofing and tpo roofing are also known to be able to typically maintain two layers of roof without causing problems.