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Exceptional fire containment

Why choose mineral wool insulation?

Thermafiber® TopStop® Head-of-Wall Insulation provides fire containment in head-of-wall constructions. These products are non-combustible, moisture-resistant, non-corrosive, nondeteriorating, mildew-resistant, and vermin-resistant.

Block of Thermafiber® TopStop®

Building Enclosure Solutions

Owens Corning® Enclosure Solutions offers one of the largest portfolios of commercial insulation products for walls, roofs, and below-grade foundations. Engineered with Owens Corning technical expertise and supported by Building Science, Owens Corning® Enclosure Solutions deliver buildings that perform without compromising design.

Performance Attributes

Fire Resistance icon

Fire Resistance

Moisture Resistance icon

Moisture Resistance

Energy Efficiency icon

Energy Efficiency

Recycled Materials icon

Recycled Materials

Technical Information

TESTED TO ASTM C 518

TESTED TO ASTM C 518

TESTED TO ASTM E 84 UNFACED

TESTED TO ASTM E 84 UNFACED

Product Designation

Actual Density

“k” @ 75° [24°C] BTU.in/hr.sq. ft. °F

“R” value per inch of thickness*

Flame Spread

Smoke Developed

TSZ-16.0 pcf0.234.300
TSZ-26.0 pcf0.234.300
TSZ-36.0 pcf0.234.300
TSF-A26.0 pcf0.234.300
TSF-A46.0 pcf0.234.300
TSF-B26.0 pcf0.234.300
TSF-B46.0 pcf0.234.300

*R = thickness divided by ‘k’

Physical Properties

Property

Test Method

Value

Corrosion of Steel, Aluminum, and Copper

ASTM C665, HH-I-521FType 1
Non-CombustibilityASTM E136Non-Combustible
Non-CombustibilityCAN/ULC S114Complies
Water Vapor SorptionASTM C1104Sorption less than 1% by volume
Surface Burning CharacteristicsASTM E84

Flame Spread 0,
Smoke Developed 0

Surface Burning CharacteristicsCAN/ULC S102

Flame Spread 0,
Smoke Developed 0

Applications

  • Walls

Contact Us

Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative.