HORIZON METAL SYSTEM DBA DDK NWSM
Building Products Listing Program
- HORIZON METAL SYSTEM DBA DDK NWSM
- Firestopping - Penetration Firestopping
- Mission, British Columbia
- B1135-1
- B1135-1 Edition 2
- May 10, 2022
- June 14, 2024
- N/A
-
CAN/ULC S115 Standard Method of Fire Tests of Firestop Systems
ASTM E814 Standard Test Method for Fire Tests of Penetration Firestop Systems -
Sheet metal In-Slab Ventilation Duct Systems
-
Labels are applied to finished products to ensure visibility on the jobsite:
1. Manufacturers name or trademark
2. ASTM E814 and CAN/ULC S115 ratings (as applicable)
3. QAI Listing No. B1135-1
4. QAI Logo with ‘C’ and ‘US’ indicator shown below:
-
The below outlines membrane penetration ratings of NWSM- DDK 2022 ventilation products determined in accordance with ASTM E814 / CAN//ULC S115:
Horizon Metal System DBA DDK NWSM In-Slab System – Fire-Stop Resistance Ratings
Design Listing
Fitting Type
Maximum
Inlet Size
(in2)
Duct Height
(in)
Minimum Slab Thickness (in)
Intumescent pad
F, FH Rating (min)
T, FTH
Rating (min)
Fire stopped Inlet boot
49
1-3/4
6
1 layer
120
90
Fire stopped Inlet boot
49
1-3/4
6-1/4
1 layer
120
120
Fire stopped Inlet boot
49
1-3/4
6
2 layers
120
120
Dual fire stopped inlet boot
98
1-3/4
6
2 layers
120
90
Fire stopped Inlet boot
49
1-3/4
8
2 layers
180
180
Standard Inlet boot
49
1-3/4
8
None
180
120
Dual Fire Stopped Inlet Boot
98
2
7
2 Layers
120
90
Fire Stopped Inlet Boot
49
2
7
2 Layers
120
120
The materials, products or systems listed in this directory have been qualified to bear the QAI Listing Mark under the conditions stated with each Listing. Only those products bearing the QAI Listing Mark are considered to be listed by QAI.
The standard herein listed is the currently accepted version within the relevant certification scheme, code or other requirements unless otherwise noted. Transition periods may apply. Upon request, QAI will provide information about the validity of any of its certifications.
No warrantee is expressed or implied, and no guarantee is provided that any jurisdictional authority will accept the Listing found herein. The appropriate authorities should be contacted regarding the acceptability of any given Listing.
Visit the QAI Online Listing Directory located at www.qai.org for the most up to date version of this Listing and to validate that this QAI Listing is active. Questions regarding this listing may be directed to info@qai.org. Please include the listing number in the request.
USA 
Canada 
Europe 
China 
S Korea