Which of the following roof coverings has the longest life expectancy?

Slate tile is recognized for its exceptional durability and longevity as a roofing material. When properly installed and maintained, slate roofs can last well over 100 years, with some even reaching 150 years or more. This immense life expectancy is due to the natural stone composition of slate, which is resistant to harsh weather conditions, UV exposure, and does not easily deteriorate over time.

The other materials, while they have their own benefits, do not typically match slate in terms of longevity. For instance, asphalt shingles usually last between 15 to 30 years, depending on the quality and climate conditions. Wood shakes have a lifespan of about 20 to 40 years but are susceptible to rot, pests, and weathering. Metal roofing can last 40 to 70 years, but it is still significantly shorter than the life expectancy of well-maintained slate tile.

This makes slate tile the superior choice in terms of long-term investment and durability for roofing applications.