ULTRABLOCK 3 / 4" X 4" 40LF Roll

ULTRA BLOCK® is a pre-engineered, patented textile fiberglass with fiberglass matt facing, containing approximately 30% by weight unexpanded vermiculite. ULTRA BLOCK® is primarily used in fire rated construction joints.

Structural fire proofing was established in 1917 when the ASTM committee established ASTM E19. Today, E19 has evolved to ASTM E119. Every major building code in the United States requires documentation that building assemblies, components and structural elements be fire tested in accordance with test procedures set forth in ASTM E119. All of the ULTRA BLOCK® systems comply with all 4 major fire codes in the United States:

• BOCA
• SBCCI
• UBC
• U.S. Corps of Engineers

When an architect designs a structure, he will design and build in mechanical, expansion/construction joints. The joints are to compensate for the ongoing everyday expansion and contraction that a building must withstand. When the code dictates that these structures be fire rated, the expansion joint system installed must be fire rated equal to adjacent structure. The expansion joint system must be capable of taking the opening and closing of joint design and remaining in place to perform its fire rated design function if and when it is ever needed.