CL4FIRE
Grease Duct Fire Protection

Single layer system requiring only 3” insulation thickness
Double Layer system requiring two 1 ½” thick layers for 3” overall insulation thickness

The CL4FIRE system minimizes the grease duct heat transfer by using 8 lb. per cu. ft. density insulation for uniform temperatures all along the duct and not just at the joint locations. The true value of the CL4FIRE systems are highlighted with the space and material savings, shorter installation times and a square foot cost competitive with lighter 6 lb. density materials.

Single Layer Grease Duct System

Product page: HTML
Listing: CL4/DI 120-01

Double Layer Grease Duct System

Product page: HTML
Listing: CL4/FRD-PHV/120-02

Product Comparisons

Fire Protection Gypsum Chase Construction and Wrap - PDF
Issues regarding ductwork made from a combination steel and concrete board material - HTML
Double Layer ComparativeAnalysis - PDF
Comparison of Canadian Single Layer Grease Duct Systems - HTML

CL4FIRE Grease Duct Fire Protection

Single Layer Grease Duct System

Double Layer Grease Duct System

Product Comparisons

CL4FIRE
Grease Duct Fire Protection