Designed to provide enhanced fire protection in curtain wall and perimeter fire containment systems. These products are non-combustible and fire resistant and will not develop smoke or promote flame spread when exposed to fire. Curtainrock is also moisture resistant, non-corrosive and provides reliable long-term thermal performance for your wall assembly.

ROCKWOOL offers Curtainrock, Curtainrock 40 and Curtainrock 80 to meet a wide variety of curtain wall specifications. Choosing the correct product is dependent on the specified perimeter fire containment system chosen for the project. ROCKWOOL Curtainrock is a component of a variety of UL listed perimeter fire containment systems.

Curtainrock 40 is designed to meet listing requirements for curtain wall insulation with a minimum nominal 4 PCF density. Curtainrock 80 is designed to meet listing requirements for curtain wall insulation with a minimum nominal 8 PCF density.

Properties

• Has a low moisture sorption rate; effectively drains water away from exterior walls
• Delivers higher R-values for lasting thermal protection
• Is a non-combustible product with a melting point of approximately 2150°F (1177°C)
• Is sound absorbent
• Is chemically inert and noncorrosive
• Repels water; does not rot or promote growth of mildew, fungi or bacteria
• Can be fabricated and faced with reinforced foil facings
• Is approved for use as a component of UL-and Interek-approved systems
• Can earn LEED® credits

Download the Perimeter fire containment system technical guide to learn more.

As the world’s leading stone wool insulation manufacturer, ROCKWOOL has the products and solutions specifically engineered to meet the needs of each application area that we service, including perimeter fire containment insulation for curtain wall systems. With four manufacturing locations in North America, ROCKWOOL is ready to meet the growing demand for stone wool insulation.

ROCKWOOL offers a comprehensive portfolio of thicknesses and dimensions across our ROCKWOOL Curtainrock® and ROXUL Safe® product lines to meet your project requirements. Along with a variety of sizes offered through ROCKWOOL, our products are well suited when third-party fabrication is needed to meet custom size requests.

In addition, ROCKWOOL stone wool insulation products are designed with stringent density and dimensional tolerances to ensure a consistent installation and long-term performance. The quality control measures we incorporate within our manufacturing process are designed to ensure the products you purchase consistently meet requirements of the ASTM E2307 listings.

As additional support, ROCKWOOL provides a standard 30-year thermal warranty on all of our stone wool insulation products, along with a material guarantee that the product will arrive to our customers to specification and free of defects.

Learn more about the ROCKWOOL support you can expect for your curtain wall projects through our Perimeter Fire Containment Product and Service Guide

Download our Product and Service Guide

Certifications and Sustainability

• Curtainrock is a component of multiple UL listed perimeter fire containment systems
• Curtainrock is certified according to UL GREENGUARD and GREENGUARD Gold.
• It is CDPH compliant, which contributes to LEED points under the Low Emitting Materials category.
• Curtainrock 40 and Curtainrock 80 are Red List Approved under the International Living Future Institute Declare program.
• Curtainrock has available HPD and EPD documents

See a full list of product certifications and listings