How Long Does a Roof Last in Babylon, NY? Lifespan by Material and Local Factors
https://www.scribd.com/document/1031386166/How-Deer-Park-NY-Homeowners-Save-on-Roof-Replacement-8-Proven-Strategies-193269
The national roofing industry's standard answer — "20 to 25 years for asphalt shingles" — is a reasonable average, but it's an average built from a wide range of climates, installation quality levels, and maintenance histories