Which type of roofing material should NOT be used due to concerns of water infiltration?

The selection of hot asphalt with wet insulation as the roofing material to avoid is based on the significant issues associated with water infiltration. When insulation becomes wet, it not only loses its thermal efficiency but also poses a risk to the integrity of the roofing system. Wet insulation can lead to mold growth, structural damage, and reduced lifespan of the roofing assembly. Moreover, the application of hot asphalt requires proper conditions and should not be used with compromised insulation, as it can trap moisture beneath the roofing layer, exacerbating water infiltration issues.

In contrast, other roofing materials such as metal roofing, fiberglass sheets, and PVC membranes are designed with distinct features that cater to water runoff and moisture management, making them viable options for roofing applications. Metal roofing is known for its durability and resistance to water infiltration. Fiberglass sheets can offer waterproofing benefits while maintaining structural integrity. PVC membranes provide excellent waterproofing and have a long lifespan, cultivated for resisting water damage.

Understanding the specific contexts and materials involved in roofing helps to make informed choices regarding their application and ensures longevity and efficiency of the roof system.