Get matched with top roofers in Paterson, NJ

Wooden roofs require regular maintenance, are prone to rot and mold, and are frequently the target of insect infestations. Natural wood is also excellent at absorbing and storing moisture—not a positive. In climates where the weather shifts dramatically, the wood can also crack, split, or warp.

The lifespan of a torch down roof depends on the number of layers installed. A single-ply system typically lasts between 10 and 15 years, while a multi-layer system with two or three layers can last from 15 to 25 years. Although a multi-layer option may be more expensive upfront, it provides a longer service life. Warranties often reflect this, with about 12 years for a one-ply system and 15 years for a two-ply system. For context, this lifespan is shorter than other common roofing materials like wood or asphalt shingles, which typically last 20 to 30 years, with high-quality versions lasting up to 50 years.

Yes, chimney flashing is an important element in the complex system that is your roof. Chimneys (and anything else that goes through your roof) provide a great opportunity for water damage. Good flashing prevents a lot of potential 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.