DUCTZ+ | Ducts Fire Wrap System 

Ductz+™ is a flexible fire resistant blanket system used for 2-hour rated duct insulation. It is tested per ASTM E2336, UL 2221 and ULC S144. This is the ideal enclosure solution for :

·         Commercial kitchen grease ducts

·         Ventilation air ducts

·         Chemical exhaust ducts

·         Pressurization ducts

·         Other fire rated HVAC ducts

Ductz+™ is fully encapsulated and having a nominal thickness of 1-1/2 inches (38 mm) and a density of 6 pcf (96 kg/m3). The core material is a high temperature body low bio-persistence fiber that utilizes a unique spinning technology to create a special fiber with superior thermal and mechanical properties. This fiber is made from a blend of calcium, silica and magnesium and can be exposed to temperatures up to 2192°F (1200°C). The core insulation blanket is completely encapsulated in an aluminum foil fiberglass reinforced scrim covering. This scrim provides additional handling strength as well as protection from grease, moisture absorption and tearing.

DUCTZ+ Certificate of Compliance (CoC)
DUCTZ+ Design Listing
DUCTZ+ Technical Datasheet

Product Features

  • 2-hour fire-resistance rating

  • Tested per ASTM E2336, UL 2221, ULC S144

  • High flexibility for fast and easy installation to all duct designs

  • Alternate to shaft enclosure

  • Thin and lightweight at nominal thickness of 1-1/2” and density of 6 pcf

  • Zero clearance to combustibles, at any location

  • Fully foil encapsulated for blanket protection, high strength and clean installation

  • Good sound absorption

  • Available in:
    24″ x 25 ft. (609.6mm x 7.62m), 50 sq. ft.
    48″ x 25 ft. (1219.2mm x 7.62m), 100 sq. ft


ASTM E2336 Passes all tests
Noncombustibility (ASTM E136) Pass
Fire Resistance (ASTM E119) Pass – 2 hour Fire Resistance Rating
Durability (ASTM C518) Pass
Internal Fire Test: 4 hr @ 500°F and 30 minutes @ 2000°F (ASTM E2336) Pass
Fire-Engulfment Test (ASTM E119 Exposure) Pass – 2 hour Fire Resistance Rating
UL 2221 Pass
ASTM E814 and UL 1479 F-Rating – 2 hour ; T-Rating – 2 hour
ASTM E84 / UL 723 Flame Spread< 25 ; Smoke developed <50
ASTM C411 Pass
Intertek Services Testing, Listing and Certification
 Spec id. 46247
Duct System Design No. EFS/BI 120-01; EFS/BI 120-02
Listing Section Fire Resistant Duct