Year: 2026

What is back-nailing and why is it done?

Direct Answer Back-nailing is a roofing installation technique in which fasteners are installed through the concealed portion of a roofing ply or sheet so that the next overlapping layer covers…

What is a deck core cut and what does it reveal?

Direct Answer A deck core cut is a small, controlled opening made through an existing commercial roofing assembly to inspect the concealed materials beneath the roof surface. Depending on the…

What is value engineering and what are its risks in roofing?

Direct Answer Value engineering in commercial roofing is a structured process for reducing unnecessary project costs while maintaining or improving the roof system’s required performance, durability, safety, and long-term value.…

What is a slip sheet and when is one required?

Direct Answer A slip sheet is a thin separator material installed between two components of a roofing assembly to prevent unwanted adhesion, reduce friction or abrasion, or protect materials from…