Ace Your AHIT Exam 2025 – Inspect Success, Home Style!

For 18-inch shingles, a proper exposure of 7.5 inches is designed to balance aesthetics and performance in roofing applications. When shingles are laid out with this exposure, it ensures adequate weather resistance and effective water shedding. The exposure also provides a clean look while allowing for some overlap, which is crucial in preventing wind uplift and water infiltration under the shingles.

Shingles are typically installed with a specific exposure based on their size to optimize their effectiveness. Choosing an exposure that is too small may lead to insufficient coverage and increased risk of leaks, while one that is too large can diminish the overall appearance and structural integrity of the roof. Thus, 7.5 inches serves both functional and visual purposes when using 18-inch shingles.