ROCKWOOL Comfortboard®

Enhance your building envelope with ROCKWOOL Comfortboard®, a rigid stone wool insulation board that provides exceptional fire protection, energy efficiency, and versatility.

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Available in two product options to support specific structural requirements for your next project, Comfortboard 80 and Comfortboard 110 products are used with screws through strapping and insulation cladding support systems.

Comfortboard enables the creation of safer, more comfortable buildings that resist moisture and reduce energy costs. It's engineered for use as exterior continuous insulation in both above- and below-grade exterior walls, under-slab, exterior-insulated stucco assemblies, and in pitched roofs.

ROCKWOOL insulation is moisture resistant yet vapor permeable. In the event the insulation becomes damp or wet, the insulation, when thoroughly dried, will maintain the original performance characteristics.

ROCKWOOL stone wool insulation does not wick water, which means that any bulk water that contacts the outer surface will drain and not be absorbed into the body of the insulation.

There is no test method to determine whether or not any product is rodent resistant. ROCKWOOL’s reputation as a rodent-resistant insulation is mainly based on word of mouth and lack of negative feedback from numerous customers who use our products in “cottage country”. That being said, if a certain pest type is a nuisance to your particular area, best practice is to protect the insulation. 

ROCKWOOL (ROXUL Inc.) Terms and Conditions regarding Limited Warranty

Here at ROCKWOOL (ROXUL Inc.), we are committed to ensuring the highest standard of quality possible in everything we do. We are proud of our constant, consistent efforts to improve our operations to ensure we exceed your expectations on every product that leaves any of our facilities.  As ROCKWOOL has no control over installation design and workmanship, accessory materials or application conditions, ROCKWOOL does not warrant the performance or results of any installation containing ROCKWOOL products. ROCKWOOL's overall liability and the remedies available are limited by the general terms and conditions of sale.

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The limited warranty in the terms and conditions is in lieu of all other warranties and conditions expressed or implied, including the warranties of merchantability and fitness for a particular purpose.

ROCKWOOL stone wool building insulation is primarily composed of basalt rock. The recycled content of ROCKWOOL building insulation products varies by factory. Our factory in Milton, ON has the highest recycled content at 36% pre-consumer and 1% post-consumer recycled content. All other facilities have near zero pre-consumer and post-consumer recycled content.

It is important to note, per industry standard definitions, waste wool generated during the manufacturing process and re-directed back into production is excluded from recycled content calculations. Refer to the ROCKWOOL Stone Wool Insulation third-party validated Type III Environmental Product Declaration for a comprehensive lifecycle impact assessment.

Standard ROCKWOOL products do currently use a phenol formaldehyde binder during production. During manufacturing, the binder is cured at very high temperatures leaving only trace amounts in the product after it is produced. ROCKWOOL AFB®, SAFE’n’SOUND®, and COMFORTBATT® have all achieved GREENGUARD GOLD status for indoor air quality.

ROCKWOOL also offers a no added formaldehyde product, AFB evo™, starting July 1st . This product is produced with a new formaldehyde free binder, and retains all of the properties of the original AFB® product. Please contact your local specifications manager for more information.

CAVITYROCK® insulation will not act as a vapor and/or an air barrier and therefore no need to tape the seams of the boards. Ensure when installing the insulation that the boards are butted closely together so that there is no space between each successive board. 

ROCKWOOL offers a list of UL designs on the ROCKWOOL website, which can be found by searching UL Listing. This will include curtain wall, fire wall, and fire stopping designs. Other UL rated assemblies can be found on the UL database, linked to here. This database contains UL listings for wall, floor/ceiling as well as roofing assemblies.

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