What is the typical exposure measurement for 3-tab asphalt shingles?

The typical exposure measurement for 3-tab asphalt shingles is indeed 5 inches. This measurement refers to the amount of the shingle that is exposed to the elements once installed on the roof.

In a standard installation, each shingle is designed to overlap the one below it by a specific amount, allowing for optimal water shedding and protection from the elements. The 5-inch exposure allows for efficient drainage while also providing an aesthetically pleasing appearance to the roof. This standardization contributes to both the performance and longevity of the roofing system, ensuring that it can withstand environmental stressors effectively.

When considering the other options, 6 inches, 4 inches, and 8 inches do not align with the standard practices for 3-tab shingles, as the exposure measurement needs to balance adequate coverage with functionality, which is typically achieved at the 5-inch mark. Thus, the correct exposure measurement is crucial for the installation and performance of 3-tab asphalt shingles.