Roof Overlay

Roof Replacement

If the roof of your home is old, has sustained damage, or is showing visible signs of wear, it may be time for a roof replacement. There are two methods of replacing a roof: complete/tear-off and roof overlay. 


While roof overlay is a lesser-known alternative, it may be a viable option for homeowners looking to save money.

What is a roof overlay? 

A roof overlay is a type of roof replacement in which roofers will shingle over your existing roof. This method differs from a complete roof replacement, also known as a tear-off, which requires a roofing company to fully remove the existing roof before the installation of new materials. 

Pros of a Roof Overlay 


  • Less Labor-Intensive: Because the existing roof is left in-tact, a roof overlay requires significantly less labor than a complete roof replacement. 
  • Quicker Installation: Most roofing companies can complete roof overlays in a few short days. This option is ideal for homeowners who need an immediate fix, or those looking to avoid extensive construction. 
  • Less Expensive: Roof overlays are a great option for homeowners who want to save some initial money. The lower cost is a direct result of less labor and quicker installation.

Cons of a Roof Overlay


  • No full roof inspection: During a tear-off, roofers can inspect the entire roofing system and wood decking for damage, rot, and leaks. Roof overlays do not allow for this kind of inspection. Instead, roofers are limited to an initial evaluation where hidden damage may go unnoticed. 
  • Shorter Lifespan: Roof overlays do not last as long as complete roof replacements. Heat will become trapped by the additional layers of materials and will speed up the deterioration process. 
  • Heavier: The combined weight of existing and new roofing can impact the structural integrity of your home. 
  • Higher Future Costs: When it comes time to replace your roofing system entirely, there will be higher associated costs. Roofers will have to remove twice as many roofing materials, which requires more labor and more time.

Is a roof overlay right for you? 

Most people who opt for a roof overlay do so because of the price point. However, this may not always be an option. Roofers are unable to layover new materials on roofs that have significant damage, already have an overlay, or have curled shingles.


Contact a professional roofing company like Trotman Brothers Roofing and Construction to determine if your home is eligible for a roof overlay. Our professionals will perform a free initial roof inspection and provide you with a cost estimate.