

Resists Fire
Insulation that Stands up to Fire
SANCTUARY® cellulose insulation delivers proven fire protection that helps safeguard homes and the people in them. With a Class 1/A fire rating, SANCTUARY is treated throughout with long-lasting, mineral-based fire retardants that impede ignition and slow flame spread. Its dense fiber structure limits air movement and oxygen flow, while its natural char layer forms a protective barrier under high heat, helping maintain structural integrity longer and providing confidence that lasts the life of the home.1
Slows Fire. Saves Time.
With a Class 1A fire rating, SANCTUARY insulation contains active fire-resistant materials that help slow the spread of flames, giving you more time to evacuate in the event of a fire.
Featured Products
Solutions For Any Project

FRM Insulation
Combined with our proprietary U370 firewall design, this formula achieves a 2-hour fire resistance rating, plus exceptional reduction in air infiltration and sound control.

SANCTUARY
An eco-friendly cellulose insulation product that delivers unparalleled sound power reduction, highly effective insulation, temperature regulation and fire safety.

SANCTUARY DEFENSE
An eco-friendly, high-performance insulation that delivers everything SANCTUARY® does, but with added protection against 25 home-destroying pests.


Two-Hour Firewall
A better two-hour firewall solution
Two-Hour Firewall is a smarter barrier for safety, sound and peace of mind
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