The use of “Underwriters Laboratories” Fire Rated Concrete
Masonry Units is a necessity in all fire rated assemblies.

The use of “Underwriters Laboratories” Fire Rated Concrete
Masonry Units is a necessity in all fire rated assemblies.

The use of “Underwriters Laboratories” Fire Rated Concrete
Masonry Units is a necessity in all fire rated assemblies.

FIRE RATED

FIRE RATED

UL Fire-Rated

Westbrook Block is a proud producer of Underwriters Laboratories (UL) Approved Fire-Rated CMU in both Light Weight and Normal Weight densities in 2-, 3- and 4-hour configurations.

Because there no apparent difference in appearance between a standard CMU and a UL Fire-Rated CMU, Westbrook Block marks the inside core of each UL Fire Rated CMU with a raised “Frog.” In the event the design professional, building committee or local governing authority requires further assurance that the CMU used in fire walls are indeed Underwriters Laboratories Fire-Rated, individual Fire-Rated CMU can be individually marked with the UL logo. Additionally, a UL Certificate is delivered to the job site so that the contractor can make it available to local building officials.

*Underwriters Laboratories Inc. (UL) is an independent third party product safety testing and certification organization. UL has tested products for public safety for over a century. Each year more than 17 billion UL Marks are applied to products worldwide.

Westbrook Block UL License Number: R18597

UL DESIGN ASSEMBLIES

u901   x902   u904   u905   u906   u910   u912   u913   u914

Finishes & Colors

Below is a sampling of the 300+ colors available – visit the color page for a more detailed look at available options.
Please contact us for more information: info@westbrookblock.com

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