Fire Control Technical Documents

Cellulose Fire Resistance and Fire Blocking Document
A technical document explaining the fire resistance and fire blocking capabilities of National Fiber's cellulose insulation.

Cellulose Insulation and Fire Safety
Cellulose insulation has proven in many tests to offer exceptional fire protection and safety.

Nu-Wool^® 1 & 2 Hour Firewalls
Our most popular 1 and 2 hour firewall designs with Nu-Wool cellulose insulation.

Omega Point Lab Fire Blocking Test
Comparative fire blocking tests with cellulose insulation and wood fire blocking at Omega Point Laboratories.

Technical Bulletin on Chimneys, Vents and Recessed Lights
A document addressing proper installation near combustion appliances, chimneys, vents or flue pipes, and non-IC rated recessed light housings or fixtures.

UL Listed Fire Rated Assemblies With Nu-Wool Cellulose Insulation
A comprehensive list of UL listed, fire rated, wall and floor/ceiling assemblies using cellulose insulation.

What are Borates?
Borates are naturally occurring minerals used to enhance the performance and benefits of National Fiber's cellulose insulation.