What type of roof material is heaviest per surface area?

Tile and slate roofs are known for their substantial weight compared to other roofing materials. They are often made from dense natural materials that contribute to their heaviness. Tile roofs, typically clay or concrete, can weigh around 800 to 1,200 pounds per square (100 square feet), while slate roofs can be even heavier, at around 1,000 to 1,500 pounds per square.

This significant weight factor is crucial for firefighters and building inspectors to consider, as it can affect the structural integrity of a building during a fire scenario or other emergencies. Understanding the characteristics of different roofing materials, particularly their weight, allows those in the fire service to assess potential risks better and make informed decisions in firefighting operations and building assessments.

In contrast, asphalt shingles, wood shakes, and metal roofs are typically much lighter, which makes them easier to handle and install but may also pose different challenges in terms of fire behavior and structural load considerations.