What is the appropriate lap distance for all hips and ridges on each side?

The appropriate lap distance for hips and ridges on each side is established to ensure proper water shedding and structural integrity on roofs. A lap distance of 6 inches is recommended because it provides a sufficient overlap to prevent water penetration, which can lead to leaks and structural damage over time. This measurement ensures that each roofing material interlocks securely, allowing for expansion and contraction due to temperature changes without compromising the roof's waterproofing capabilities. Correcting the overlap distance according to industry standards promotes durability and longevity in roofing systems, making 6 inches a widely accepted practice among builders and roof installers.