You have two options when it comes to roof replacement. A tear-off involves removing the old material and installing a completely new roof. On the other hand, in an overlay or roof-over, new shingles are installed over the existing ones.
Read on to find out the pros and cons of a roof-over.
Pros of a Roof-Over
A roof-over skips removing the old shingles, saving you on labor and cleanup costs. Because the old material stays, you won’t have to deal with as much mess as with a tear-off. This option can also save you time since it can be completed faster.
Cons of a Roof-Over
The added layer of shingles can affect your roof’s ventilation and trap heat, which can result in early deterioration and speed up the need for a roof replacement. Layering shingles can reduce your roofing system’s lifespan by up to 40%
An overlay adds significant weight to your home, putting stress on the roof decking. This can compromise the structural integrity of your roof, especially if you live in an area that experiences heavy snowfall. You may want to reconsider this method if you’re thinking of selling your home in the future. Inspectors can see layered shingles as a possible issue for the new owner.
Why a Tear-Off Is the Better Option
With a tear-off, your roofer can detect hidden problems with your existing roof and address them before they result in costlier issues. It minimizes the possibility of leaks since new flashing can be installed. A full tear-off also lasts longer than a roof-over because a new roof traps less heat than a system with multiple layers of shingles.
Ensure your home’s protection against harsh elements by choosing quality materials and hiring a reputable residential roofing contractor. At The Carpenter’s Touch, we work with GAF to provide superior roofing services. GAF roofing systems are known for their durability, long lifespan and beauty. Give us a call at (973) 994-1085, or fill out our contact form to request an estimate. We work with homeowners in Livingston, NJ.