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Roof Layover
A roof layover is the fastest and least costly option you may have to restore your roof. This consists of a new shingle overlay over your existing shingle. The cost for a roof layover can cost $4.90 to $8.90 per square foot.
Consideration
Not all roofs are suitable for a layover. The home must have a sound roof structure, and have only one existing shingle layer. Roofs with more than 2 layers required a complete tear off. Water leaks must be repaired before the new shingle can be installed. Some material may not be compatible. A roof and attic inspection are required. No Warranty is offered as the new layer is placed over another roof.
Cost of a Roof Layover
Case Study #1
Home Specs: ranch style home with a 1800 sf of roof area, existing 3 tab asphalt shingle, and 5/12 roof pitch
Cost: $14,220 or $7.90 per sf
Case Study #2
Home Specs: 2 story home with a 1800 sf of roof area, existing 3 tab asphalt shingle, and 7/12 roof pitch
Cost: $17,820 or $9.90 per sf
Pros of a Roof Layover
1. Lower Cost: No tear-off means lower labor and disposal fees.
2. Faster Installation: Less time-consuming since you’re not removing the old shingles.
3. Less Mess: Fewer materials to remove and clean up.
Cons of a Roof Layover
1. Shorter Lifespan: New shingles may not last as long due to heat retention and uneven surfaces.
2. No Deck Inspection: You can’t inspect or repair the underlying wood for rot or damage.
3. Added Weight: Two layers of shingles increase roof load, which can strain the structure.
4. Code Restrictions: Most building codes limit roofs to two layers max. Anything beyond that requires full removal.
When Is a Layover Acceptable?
1. The existing shingles are flat and in decent condition (no curling, major damage).
2. The roof decking is solid and there’s no underlying structural issue.
3. Your local building code allows it.
Free Roof Inspection
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