DDK Ventilation Products Ltd.
Building Products Listing Program
- DDK Ventilation Products Ltd.
- Firestopping - Penetration Firestopping
- Coquitlam, BC
- April 18, 2019
- April 18, 2019
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
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) B1121-1A 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 Fire stopped 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
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