WECK Firestop Block

WECK Glass Blocks
04270/WEC BuyLine 4732

Weck Glass Blocks
450 Congress Parkway
Suite E
Crystal Lake, IL 60014
Phone: (815) 356-8440
Fax: (815) 356-8450
E-mail: glashaus@glashaus.com
Website: http://www.weck.com

Setting new industry standards, WECK Firestop blocks offer new options for fire rated installations. Now both thinline and standard thickness glass blocks are 45 minute fire rated as protected openings in either masonry or gypsumboard walls. A labeled frame developed by Weck Glass Blocks, Inc. is used for borrowed light applications in gypsumboard. For protected openings, Fortress-60, Nubio-60, or Clarity-60 blocks are 60 minute rated in either masonry or gypsumboard, and Clarity-90 is 90 minute rated in masonry. Corner blocks, end blocks, metric blocks, and 12x12 sizes are not fire rated. The following table shows fire ratings as tested by UL-9, a test for window assemblies.

FORTRESS
Extra-heavy block; minimizes vandalism. Available with small line pattern or in Clarity.

A 60 minute fire rating is available.

NUBIO
Intersecting random wave pattern provides an attractive appearance and excellent privacy. Smooth exterior surface for easy cleaning.

Available in cleartone or goldtone.

Both 45 and 60 minute fire ratings are available.

CLARITY
This see-through block provides a dramatic grid effect, undistorted vision, and maximum light transmission.

Available in cleartone or goldtone.

Both 45 and 60 minute fire ratings are available.
See table for available sizes.