Deck 44

Question 1

SB 85 Gypsum Roof DeckingWhat are two different ways to build a gypsum roof?2.1.1, 2.2.1-2.2.2

Answer 1

Planks- 2 inches thick, 2 ft wide and 8 feet long, each weighs approx 135lbsGypsum concrete poured over foamboards and wire mesh, in areas 1/2 inch thick, 32 inches wide with a length a max of 12 ft. weighing apprx 17.5 lbs per sq. ftBoth systems are layed on a subperlin system welded at right angles to each other.

Question 2

If a member attems to cut and a whitle powdery residue come out what should he do? 3.2.4

Answer 2

Notify the IC and evacuate the roof,Dunn adds a notification to the Roof Sector supervisor

Question 3

Once a gypsum roof deck has been identified how should an interior attack comence? 3.2.3

Answer 3

Interior firefighting operations shall be conducted from areas of safety due to the weight of such decking material, hose streams shall be operated well in advance of members.