LWP Roof Cuts: which option describes a method listed under this heading?

• A. L7 off beam with construction
• B. L7 off purlin against construction
• C. Opposing saws off Purlin with construction
• D. All of the above

Answer: (D)

Under LWP Roof Cuts, the techniques cover several ways to create a ventilation opening in lightweight roof construction without abruptly compromising support. The methods described—cutting off the beam with the construction in place, cutting off the purlin against the construction, and opposing saws off the purlin with construction—are all recognized approaches listed under this heading. Since the heading includes these different configurations, selecting all of these options reflects that the section encompasses multiple valid methods, making all of them correct.

Think of it as the ventilation guide acknowledging that you can cut through different structural members (beam or purlin) and from different sides relative to the framing, with the construction in place, to achieve a safe, controlled exposure.