Roof Ops Flashcards
1
Q
WHY do we ventilate?
A
- To create a viable atmosphere for possible victims
- To control the direction and removal of smoke,
- To increase visibility for safer advancement for hose teams
2
Q
HOW do we horizontally ventilate?
A
- Simply open doors/windows closest to the source for smoke removal
- Positive pressure ventilation
- Negative pressure ventilation
3
Q
WHERE (as in location of structure) do we vertically ventilate?
A
- Scuttle hatch covers or skylights
- Anticipate fire spread potential
- On peaked roofs, closest to top ridge
4
Q
WHEN do we vertically ventilate?
A
- Early before fire has weakened supportive roof structure
- To stop fire spread in roofs or attics
- Only when sufficient resources are committed
5
Q
WHAT type of structure do we vertically ventilate?
A
- Warehouses
- Apartment buildings
- Strip malls or other retail occupancies
- Residences BUT proceed with caution! Horizontal ventilation is usually sufficient EXCEPT when large homes have ceilings so high hooks cannot reach.
6
Q
Roof support system:
A
Wood or steel beams or joists
7
Q
Modern lightweight
trusses are held together with
A
glue or with pressed gusset plates!
8
Q
What are we looking for?
A
- Obvious hazards, i.e. HVAC’s, patch-jobs, visible smoke/fire, bubbling of tar, sway, etc
- Egress options
9
Q
Right tools for the right job:
A
- Saw
- Spare blades, tools to change out those blades
- Roof hooks
- The Irons
- Rope bag
- Roof ladder and sledge if manpower permits
10
Q
As You advance on a roof you should
A
sound the roof
11
Q
strongest parts of the roofs
A
ridge lines
12
Q
Triangle inspection cut provides valuable information with regards to
A
roof construction material, depth and decking, smoke and fire conditions
