What should you include when estimating the replacement of shingles?

When estimating the replacement of shingles, it’s important to consider the waste incurred during installation based on the specific type of material being used. Waste is a natural part of roofing installations due to cuts, overlaps, and other factors that reduce the effective area that can be covered.

Including waste based on material type ensures that you are accounting for the correct percentage of material that may not be used due to its installation nuances. For example, composite shingles may require a certain percentage of waste to be factored into the total estimate because they are typically installed in a manner that generates more scrap than other materials. Similarly, wood shingles or shakes may have different waste allowances due to their installation methods and the need for proper fitting.

Therefore, by including waste based on the material type, you ensure that your estimates are accurate and that there is enough material ordered to complete the roofing job without encountering shortages during installation. This approach promotes efficiency and cost-effectiveness in planning and executing roofing projects.