Roof Over Vs New Roof

Difference between reroofing and roof replacement roofing over an existing roof is also called reroofing or an overlay.

Roof over vs new roof.

Determining whether roof repairis in order or if it is necessary to replace the roof depends on a few factors. Box beam gable framing new gable overhang is framed in the form of a box beam hanging off of a new layer of roof plywood roof sheathing cantilevered over the top of the 3 layers of rigid insulation. The roof should be in sound. Inspect the condition of your current roof.

I have a 1949 1600 sf under roof with 8 12 pitches valleys and hips 2 6 rafters on 16 on center sheathed with 3 4 center matched lumber going over at least 1 layer of 3 tab shingles a partial tear took off the old tabs and left a nice wavy surface in pretty good shape. Mold rot or other significant damage needs to be taken care of with a full replacement not hidden by new materials. Is it better to roof over lay new shingles over the existing ones or tear it all off and replace the entire roof. Hence putting a roof on top of a roof.

Affordable roofing by john cadwell inc. There s a lot of visible damage. It is the process where roofers install a new roof over your existing one i e. Today on in the house jim talks to a show listener with an aging roof.

Add a new layer of shingles which means that there is no tearing off of the old roof. You need a flat surface to install a new roof over existing shingles. Adds value a brand new tear off roof can add to your home s resale value and is a major selling point. Posted at 02 36h in all urc news blog home improvement tips work news.

How to install a roof over an existing roof determine the feasibility. Adding another layer of shingles or metal over an existing roof could be your best solution. So roof replacement may not be the only option to your roofing problem after all. The condition of the existing roof is critical.

The exposed edges of the 3 layers of rigid insulation are no longer exposed. Get up to 4 free quotes. Multiple layers of shingles can make it difficult or impossible for the nails to penetrate. Old shingles can curl over time.

Extra heat causes shingles to curl and break down much more quickly.