Product Covered:
Therma Tru Corporation - Category H & J Gaskets
Product Description:
Gasket Models below for installation with Listed Steel or Wood Door Frames and Listed Steel or Wood or Fiberglass Faced Fire Doors. Listed Category "H" or "J" Gaskets for use on kerfed frames between door and frame interface.
Note: All other requirments and limitations specified in the door or frame listing still apply.
Model
- Therma Tru Corporation's 650 Gasket
- Therma Tru Corporation's 740 Gasket
- Therma Tru Corporation's 928 Gasket
Configuration Maximum Size
Single Swing 4'0" wide x 10'0" high
Pairs 8'0" wide x 10'0" high
Air Leakage Ratings
| Pressure (inches H2O) |
Maximum Leakage Rate
(scfm/ft2)
Ambient temperature* |
Maximum Leakage Rate
(scfm/ft2)
Elevated temperature
(400°F)* |
| 0.05 |
0.18 |
0.16 |
| 0.10 |
0.33 |
0.34 |
| 0.20 |
0.60 |
0.63 |
| 0.30 |
0.73 |
0.73 |
*The door assemblies may be installed without a gasket or seal at the bottom of the assembly except where the assembly is installed where pressurization is provided to control smoke movement. The gap between the bottom of the assembly and the finished floor shall be a maximum of 3/8 in., based on the requirements for fire resistance applications.
| Standard/Code Section |
Property |
Results |
| UL 1784 |
Max. air leakage at 0.3 in. of w.c. pressure differential at ambient and elevated (400°F) |
<3.0/cfmft2 |
2018, 2015 & 2012 IBC Section 710.5.2.2,
2009 IBC Section 711.5.2 |
Max. air leakage: < 3 cfm per sq.ft. of opening at 0.1 in. of w.c. pressure differential at ambient temperature and elevated (400 degrees F.) |
Complies |
Evaluated to the following:
Doors constructed as described in this procedure meet the requirements for both positive and neutral pressure fire tests, UL 10C, NFPA 252 and CAN/ULC S104 with hose stream and certified to UL 1784 for air leakage.
