If the foam plastic thickness is not smaller than 25 mm r n 0 59 in equation 6 is equal to 0 22.
Ul number for concrete wall.
Some of our systems also have t and l ratings.
Ul is an independent third party product safety testing and certification organization.
Split sleeve concrete 2 hr ul w j 3110.
51 mm thickness can be used.
Split sleeve firestop systems.
For example for an 8 in.
The hourly fire resistance ratings listed are f ratings.
Why ul the ul certification mark on fire resistant products systems and assemblies is relied on by code enforcement officials and buyers to provide confidence that products and systems meet regulatory and.
Equation 6 is used to compute the fire resistance of precast concrete wall panels constructed from two layer of concrete between which a layer of foam plastic is sandwiched.
Ul has tested products for public safety for over a century.
It includes the flexibility to search by product name master format number related installation code section keywords and other terms.
25 mm thickness measured perpendicular to the face of the wall of ceramic fiber in the joint can be used in walls with fire resistance ratings up to 3 hours while a 2 in.
Westbrook block ul license number.
Resistance of concrete shall be permitted in accordance with aci 216 1.
Aci tms 216 1 14 code requirements for determining fire resistance of concrete and masonry construction assemblies lists the minimum equivalent thickness of single layer concrete walls to meet fire resistance ratings ranging from 1 to 4 hours see table on following page.
These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.
Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.
As the global safety science leader ul helps companies to demonstrate safety enhance sustainability strengthen security deliver quality manage risk and achieve regulatory compliance.
Each year more than 17 billion ul marks are applied to products worldwide.
All have been tested to ul 1479 standards.
Moreover the contribution of foam plastic fire.
13 mm a 1 in.
Scroll to the bottom of the page to see the definitions for each ul rating type.