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.

Contact: 

crawford@guardianstructures.ca                519-831-9989

josh@guardianstructures.ca                        226-971-2981

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