Get matched with top roofers in Malverne, NY

Underlayment exists under your tile roof. It helps protect your home by acting as a secondary water barrier. Often, when roof tiles fall off, underlayment that's in good condition can temporarily keep water from getting into the home. However, immediate replacement of missing tiles is crucial to avoid additional roof damage. 

While you can technically install TPO roofing over an existing roof, it isn't always wise to do so. The more layers of material you add to your roof, the more weight it must support. You may also develop moisture issues by covering your existing roof with TPO. Your local building codes and regulations may actually require you to remove the existing roof before adding TPO, so check with your local municipality.

If you choose tile for your roof, take the time to hire a true tile professional. Look at trusted online review sites to find a top-rated roofing contractor. This helps you zero in on great contractors while avoiding ones who bait and switch you with fluctuating bids.

After you’ve narrowed down a few great candidates with reasonable bids, there are some important questions to ask roofers before you hire. Be sure they are licensed, bonded, and insured before signing a contract. Once you find a roofer who checks off all your boxes, you’re ready to get your project started.

A metal roof can last anywhere from 15 to over 100 years, with an average of 50 years, depending on the material, installation, and environment. The specific metal is a key factor: aluminum roofs may last 20 to 45 years, while steel can last 30 to 60 years. Tin can last for up to 75 years, and more durable options like zinc, stainless steel, and copper can last from 80 to over 100 years. Factors that can shorten a metal roof's lifespan include living in a coastal region with corrosive salt air, improper installation (such as laying over old shingles), and failing to inspect and replace fasteners, which may wear out before the panels.