46. Which is true about the slope requirements for a re-roofing installation on a low-slope roof?
Answer: D
It shall not be required to meet the minimum code requirement for design slope for roofs that provide positive roof drainage.
In the context of low-slope roof installations, if a roof is designed to provide positive drainage, it is exempt from adhering to the minimum code requirements for design slope. This allows for flexibility in roofing installations where adequate drainage is ensured.
A) One-eighth unit vertical in 12 units horizontal.
This option suggests a specific slope measurement, which is not universally applicable to all low-slope roofs. While it may represent a standard for some installations, it does not encompass the broader context of roofing regulations, particularly in relation to drainage.
B) One-fourth unit vertical in 12 units horizontal.
Similar to Option A, this choice specifies a slope measurement that may not be applicable for roofs with positive drainage. It does not address the exemptions provided for such roofs regarding minimum code requirements.
C) If the roof slope meets the minimum code requirement, it can be installed over two existing roof coverings.
This statement pertains to installation practices rather than slope requirements. While it may be true in certain contexts, it does not directly relate to the question of slope requirements themselves, making it irrelevant to the core query.
D) It shall not be required to meet the minimum code requirement for design slope for roofs that provide positive roof drainage.
This option correctly identifies that roofs designed for positive drainage are not bound by the typical minimum slope codes. This flexibility is crucial for ensuring that roofing systems can be installed effectively without compromising drainage capabilities.
Conclusion
The correct answer definitively highlights the exemption from minimum slope requirements for roofs that ensure positive drainage, emphasizing the importance of drainage over strict slope adherence. Other options either misrepresent slope requirements or focus on unrelated installation practices, failing to address the specific context of low-slope roofing regulations.