SB 85 GYPSUM ROOF DECKING

Question 0

UN- Protected lightweight open web steel joists are vulnerable to high temperatures and may collapse within

Answer 0

5 to 10 minutes in a HEAVY fire situation

Question 1

Open web steel joists are found in modern commercial buildings. They are used to span long distances

Answer 1

Up to 60 Feet

Question 2

The failure of a truss may have serious consequences

Answer 2

Far from the point where initial failure occurs

Question 3

Gypsum plank roof decking

Answer 3

2 inches thick
2 Feet wide
8 Feet long 
Each plank weighs 135 pounds
Gypsum planks can come in other sizes

Question 4

Gypsum plank and concrete decking drawback is that it is

Answer 4

Extremely vulnerable to moisture causing a deterioration of the system
No members are to be committed to roof operations

Question 5

Interior firefighting operations shall be conducted from

Answer 5

Areas of safety. Hose stream shall be operated well in advance of members