Web3 Hour Design Assemblies: UL Design No. W454 (National Gypsum Co.) (2) Layers of 1” … WebFor more information visit www.ul.com The fire-resistance rated wall assemblies published under the U, V and W series of designs on the UL Online Certifications Directory are intended for interior applications unless otherwise specified or implied in the design. There are two methods by which a wall design specifies or implies suitability
ACPL-P454 and ACPL-W454 - farnell.com
WebType X fire rated gypsum drywall that is 5/8 -inch (15.9mm) thick and installed on each side of nominal 2-inch x 4-inch (38x89mm) wood studs spaced 16-inch (400mm) o.c. or 3-5/8 inch (610 mm) steel studs spaced 24” o.c. has a minimum fire rating for the assembly of 1 hour, which is a typical requirement for many building codes.. Type C fire rated drywall … WebUL certified windstorm rated building assemblies clearly identifies the test criteria used … lea hollenbach
CertainTeed Home
WebCertainTeed Home WebULC Standards develops and publishes standards and specifications for products having a bearing on fire, life safety and security, crime prevention, energy efficiency, environmental safety, security of assets and facilities, ... UL's COVID-19 Support and Services Understand how UL can help meet your emerging demands A Century of Trust Web##### Fire Resistance All ULC and UL assemblies listed in this folder are cer tified for use … lea holmer