Mineral Wool Insulation

Thermafiber® Safing

Thermafiber Safing mineral wool insulation products are designed to provide fire protection in perimeter fire containment systems, floor and wall penetrations, construction joints, and other firestopping applications.

Thermafiber Safing mineral wool insulation products are designed to provide fire protection in perimeter fire containment systems, floor and wall penetrations, construction joints, and other firestopping applications.

Specifications and Literature

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Enclosure Solutions for Walls, Foundations and Roofs

Owens Corning® Enclosure Solutions deliver a range of options for commercial walls, roofs and below-grade foundations - all with customizable components to fit your project, and all backed by the experts at Owens Corning.

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Product Features

Fire Resistance

Acoustic Properties

Technical Information

Standards, Codes Compliance
ASTM C 665Non-corrosive, Type I, III
ASTM C 612Type IA, IB, II
ASTM E 136Non-combustible as defined per NFPA Standard 220
CAN/ULC S114Complies
ASTM E 96Unfaced, 50 Perms as tested
ASTM E 96Foil Faced, 0.02 Perms as tested
ASTM C 1104Absorbs less than 1% by volume
CAN/ULC S102Flame Spread 0, Smoke Developed 0, unfaced
ASTM E 814 or UL 1479Safing Insulation used in conjunction with an approved fill, void, or cavity material sealant or other approved material in through – penetration firestop systems Complies
UL 2079Safing Insulation used in conjunction with an approved fill, void or cavity material in construction joint systems Complies
CAN/ULC S115Complies

Safing products are approved by: New York City Board of Standards & Appeals – (under BSA 39-74-SM & accepted by MEA-209-82-M, Vol. 4).

Applications

Curtain Wall

Thermafiber Safing mineral wool insulation is a critical component of any perimeter fire containment. Thermafiber, Inc. has performed decades of testing in all of the following containment systems listed: Aluminum Spandrel Curtain Wall Fire Containment, Steel Stud-Framed/Gypsum Sheathing Curtain Wall Fire Containment, Glass Spandrel Curtain Wall Fire Containment, Granite Spandrel Curtain Wall Fire Containment and Precast Concrete Spandrel.

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