AG Mechanics CDE Practice Exam

Inverted shingles could be used instead of the standard material to fill in the space between the tabs of the first course of shingles. This is because inverted shingles have a thicker backing material, which can provide better protection against leaks and damage. Felt and starter strip are commonly used as underlayment options, but they are not specifically designed for filling in the space between shingles. Underlayment, while also used for added protection, is typically placed beneath the shingles rather than between them. Using underlayment as the material between shingles may cause issues with the shingles not adhering properly and potentially causing leaks.