Revisions to UL Design No. D982 in the UL Fire Resistance Directory, based on recent fire tests, have heated up long-standing differences between structural-steel interests and fire-protection ...

In many a floor/ceiling and roof/ceiling assembly listed in UL’s Fire Resistance Directory, a ceiling membrane is required to thermally protect the structural members of the assembly in the event of a ...

To slow or prevent the spread of fire, building codes require fire-resistant or fire-rated assemblies in certain locations, occupancies, and types of buildings. When fire-rated walls and/or ...

Balco’s MetaBlock® is the first UL 2079–listed fire barrier tested specifically for wood-framed wall and floor ...

EXACOR panels are also fire resistant (3) due to a magnesium oxide formula and provide strength and stability due to the integrated mesh core for structure (4). “The fire marshal’s main concern is ...

While no building is truly fireproof, construction materials and systems can make a building fire safe. Fire-resistive construction gives time to discover a fire, suppress it before it spreads and ...

Description: The DFD, FD, and FSD Series dampers can be specified for use in UL floor/ceiling design I503, which is a two-hour fire-rated floor/ceiling assembly made from steel studs and gypsum board.

Firestopping is an often misunderstood construction practice. This article examines what firestopping is and why it’s necessary in wall, floor, and ceiling penetrations. The bottom line is that ...