Weighing the Pros and Cons of a Roof-Over

Many homeowners assume that the only solution for damaged or worn-out shingles is a new roof. A roof-over is actually an option and a good way to postpone a costlier full roof replacement. It involves applying a new layer of shingles right over the old one. It has a few drawbacks so to help you weigh your options we’ve laid out its pros and cons below.

Cost

The most common pro for overlaying a roof is saving money.  Without a tear-off, you’ll save on materials, demolition, labor, disposal and recycling costs. Even so, it may not actually pay off when you finally need a new roof. There will be two layers to remove, which will cost more for labor and disposal.

Safety and Convenience 

A roof-over avoids an exposed interior and damage to driveway and landscaping. You can save time and avoid the messy and labor-intensive step of tearing off the old shingles. It can be even safer and more convenient than a roof repair.

Here are the cons:

A Roof-Over Can Shorten the Life of Your Roof

The added layer of shingles can trap heat causing the material to decompose quicker. In fact, layering shingles can shorten your roof’s life by up to 40%. This can force you to pay for an unexpected replacement.

Damage to Structure

Your roof was more than likely designed for a single layer of shingles. A second layer can add 350 to 450 extra pounds per square even in commercial roofing. Snow and rainfall can further burden your roof and the whole structure. This can make your roof sag between rafters, trap moisture and cause rotting or decay.

A roof-over has some drawbacks, but in the right situation, it can be a great temporary solution. Consult Freedom Roofing & Construction, Inc. to determine if it is appropriate for your needs. We serve clients in Champaign, IL. Call us today at (217) 393-6000, or fill out our contact form to request a free quote.