PROVEN SAFE & PREDICTABLE
UNIVERSITY OREGON - CLT PASSES 2HOUR FIRE TEST
TEST 1 OF 5
100 Percent Gypsum Wall Board Coverage - 3 HOURS
The mass timber structure was fully sheathed in a double layer of 5/8” Type X gypsum wall board in a large furnishings and contents fire. The test was terminated after three hours without significant wood charring.
TEST 2 OF 5
Thirty percent of the CLT ceiling surface areas in the living room and bedroom was left exposed. The test was terminated after four hours. The exposed CLT stopped burning after char formation on the exposed CLT ceiling surface areas. For more information on Tall Wood Buildings
TEST 3 OF 5
TWO WALLS EXPOSED
Parallel CLT Walls Exposed. One in the living room and one in the bedroom. Once the apartment furnishings and contents were consumed, the mass timber structure stopped burning after char formation.
TEST 4 OF 5
AUTOMATIC SPRINKLER PROTECTION ACTIVATED NO COVERAGE
Active Sprinkler Protection with No Gypsum Wall Board Coverage - Two sprinkler tests examined the effects of 100 percent exposed mass timber in the living room and bedroom. Test 4 demonstrated the effect of a single automatic sprinkler (it easily contained the fire).
TEST 5 OF 5
DELAYED SPRINKLER ACTIVATION
Active Sprinkler Protection with No Gypsum Wall Board Coverage - Two sprinkler tests examined the effects of 100 percent exposed mass timber in the living room and bedroom. In Test 5, the fire was allowed to freely burn for 23 minutes before the sprinkler was activated. The fire was quickly controlled.