Shingling a valley is a vital step in roofing, because it helps to forestall water from leaking into the house. One of the best ways to shingle a valley is to make use of a technique known as “open valley.” This methodology includes slicing the shingles in order that they overlap one another within the valley, making a watertight seal.
There are a number of advantages to utilizing the open valley methodology. First, it’s a very efficient solution to forestall leaks. Second, it’s a comparatively simple methodology to be taught and grasp. Third, it’s a cost-effective methodology, because it doesn’t require any particular instruments or supplies.