What is the required side lap measurement for wood shingles?

The required side lap measurement for wood shingles is indeed 1 1/2 inches. This specification is crucial for ensuring proper coverage and alignment of the shingles, which contributes to the overall performance and water-shedding capabilities of the roofing system. Proper side lap helps to minimize the potential for water infiltration by creating staggered seams, allowing water to flow over the shingles rather than penetrating between them.

Moreover, adherence to this measurement is important for meeting building code requirements and ensuring durability, as inadequate side lap can lead to exposure of the underlying structures and a greater likelihood of damage from moisture-related issues. Therefore, maintaining the 1 1/2-inch side lap is essential for achieving an effective roofing application with wood shingles.