HVAC - Application Designs and Reference Guide

DUCTS (All ULC and UL Fire Tests for Ducts are tested without dampers)

Max. Size

Penetration

Diameter

Rating

 (h)

Max Size

of

Perimeter

Gap

Construction Type(s)

A/D FIREBARRIER

Product Required

Application

Thickness

System No.

CONCRETE CONSTRUCTION

203mm (8”) diameter or smaller

Steel vent duct, 26 gauge or heavier

2

6mm

 (1/4”)

Floor - Concrete

Wall - Concrete

or Concrete Block

A/D FIREBARRIER Intumescent sealant or Acrylic

_____________

A/D FIREBARRIER Mineral Wool

Min. 6mm (¼”) thick within annulus flush with top of floor or both surfaces of wall

_____________

Min. 114mm(4¼”) thick packed into opening (wall both sides)

C-AJ-7126

cUL

356mm x 457mm

(14" X 18")

28 gauge or heavier

3

19 to 32mm

(3/4’’)

to

 (1 ¼ ‘’)

Floor - Concrete

Wall - Concrete

or Concrete Block

A/D FIREBARRIER Intumescent

Sealant

_____________

Foam backer rod (optional)

Min. 13mm (½”) thick within annulus flush with top of floor or both surfaces of wall

_____________

Min. 89mm (3½”) thick packed into opening (wall both sides)

C-AJ-7124

cUL

457mm x 152mm

(18“ X 6”)

min. 28 gauge or heavier

2

25mm

(1’’)

Floor - Concrete

Wall - Concrete

or Concrete Block

A/D FIREBARRIER Intumescent

Sealant

_____________

A/D FIREBARRIER Mineral Wool

Min. 25mm (1”) thick within annulus flush with top of floor or both surfaces of wall

_____________

Min. 25mm (1”) thick packed into opening (wall both sides)

C-AJ-7125

cUL

457mm x 965mm

 (18” x 38”)

2

0

to 5mm

(0 to 2”)

Wall - Concrete

or Concrete Block

A/D FIREBARRIER

Silicone

Min. 6mm (¼”)  bead on each leg of steel angle and compressed between angle and duct and angle and wall.

SP988

305mm x 305mm

(12" X 12")

2

25mm

(1”)  

Wall  -Concrete or Concrete Block

A/D FIREBARRIER

Silicone

Min. 16mm (5/8”) thick within annulus flush both surfaces of wall

SP987

GYPSUM WALL BOARD CONSTRUCTION

457mm x 965mm

 (18” x 38”)

1 & 2

0 to 51mm (0 to 2”)

Wall -Gypsum

Board

A/D FIREBARRIER

Silicone

Min. 6mm (¼”)  bead on each leg of steel angle and compressed between angle and duct and angle and wall.

SP986

305mm x 305mm

 (12" X 12")

1 & 2

25mm (1’)

Wall -Gypsum

Board

A/D FIREBARRIER

Silicone

Min. 16mm (5/8”) thick within annulus flush both surfaces of wall

SP985

WOOD  CONSTRUCTION

Round

100mm (4’’)

2

25mm (1’’)

annulus

Floor – Lumber

Ceiling- Gypsum

Boards

A/D FIREBARRIER

Intumescent Sealant

Min. 16mm (5/8”) to match gypsum board, then shape to form a crown bead.

Backer Rod forming Optional

F-C-7044

cUL

*** Specific Notes:

Proprietary Duct Construction or Regular Duct with Duct Blanket Wrapping Required. See Designs for Details.