Roof Replacement: Why Tear-Offs Are Better Than Overlays

There are two ways a sloped roof can be installed: complete tear-off or as an overlay. While residential roofing contractors like us can install new roofs either way, we often recommend a complete tear-off, which offers more benefits despite the higher cost. Read on as Dior Construction shares a closer look at why a complete tear-off is usually better than a roof overlay.

Overlay Vs. Tear-Off Installation

The difference between overlay and tear-off installation methods is in how much of the old roof is going to be removed before the new roof is installed. In the case of overlay installation, none at all; the new roof is installed over the old one. Some homeowners choose this method because it eschews tear-off and disposal costs.

By contrast, a complete roof tear-off involves stripping the old roof down to the decking material, which is usually good for two roof installations. This means decking is removed every other roof replacement, if the homeowner chooses to have the old roof torn off every time.

Why Tear-Offs Are the Better Option

The savings offered by overlay installation can be attractive to some homeowners. But this merely affects the upfront roof replacement cost. Keeping in mind that a typical asphalt shingle roof lasts about 20 years when properly installed and warranted by a roofing installation company, whatever you save on the upfront cost may end up being spent on subsequent repairs. Covering the old roof with a new one takes away the opportunity to address unseen structural problems such as trapped moisture or damaged decking. These structural issues may be compounded by the combined weight of the old and new roofing. 

A roofing tear-off, on the other hand, is a fresh start. Structural issues will be addressed, resulting in sound roofing structure, with less likelihood of roofing failure. Depending on the roofing system you choose, you can be eligible for better warranty coverage. Most of today’s roofing manufacturers provide extensive warranty coverage for “clean” roofing installations. This makes perfect sense, as they can’t guarantee a roof’s performance unless it’s installed as intended.

Dior Construction is your leading provider of residential roof repair and installation services. Give us a call at (201) 470-5077 or fill out our contact form. We serve customers in Essex County, NJ, and the surrounding areas.