Asphalt shingles utilize which of the following as a base?

Asphalt shingles typically utilize glass fiber as a base. Glass fiber provides significant benefits in reinforcing the asphalt, offering enhanced durability and resistance to tearing. This material is lightweight yet strong, contributing to the overall effectiveness of the shingles in various weather conditions.

Cellulose and wood fiber can be used in other roofing materials, but they do not provide the same level of strength and moisture resistance that glass fiber does in asphalt shingles. Synthetic materials might be used in other roofing applications, but they are not the traditional base material for asphalt shingles. The use of glass fiber in shingles also allows for a more consistent and reliable performance over time, making it the preferred choice in the manufacturing of these roofing products.