Truck Co. Std 2 - 8 Cut Vertical Ventilation 2 Person
ROHNERT PARK FIRE DIVISION
TRUCK COMPANY STANDARDS
Title: 8 Cut Vertical Ventilation - Residential
Standard Number: 2 Time Standard: N/A
TOPIC: Vertical Ventilation (Residential) 3 Person
GIVEN: Truck Company, extension ladder, 2 axes in belts, 1 rubbish hook, and 1
chain saw
PERFORMANCE: Create a 4’X 8’ opening in a roof for vertical ventilation
STANDARD: Using the proper cut sequence in a safe manner
REFERENCES: Truck Company Operations, John Mittendorf; Orange County
Fire Authority, Truck Company Operations
MATERIALS: Roof prop, PPE (including SCBA) extension ladder, axes in belts,
rubbish hook, and chain saw
PREPARATION: Residential vent is essential to safe and effective interior fire
attack. Having consistency and proficiency in this performance is essential to
maintaining a professional workforce.
PRESENTATION
OPERATION: KEY POINTS:
1. Starting from the truck, ladder the 1a. Wearing all PPE
building 1b. Either utilizing the truck or ground
ladders
1c. Place secondary ladder
2. Retrieve tools needed to perform vent 2a. 1 chain saw, 1 rubbish hook, axes in belts
3. Sounds roof 3a. Before getting onto roof to assure
structural stability
ROHNERT PARK FIRE DIVISION
TRUCK COMPANY STANDARDS
Title: 8 Cut Vertical Ventilation - Residential
Standard Number: 2 Time Standard: N/A
4. Crew walks along structurally stable 4a. Top plates, Valleys, Beams, Ridges
building elements 4b. To location hole is to be cut
5. Cut 1 5a. ID Cut
5b. Using bottom of bar
5c. Bump rafter 1
5d. Remove bar from kerf
6. Cut 2 6a. Insert bar in the kerf to cut opposite ID cut
6b. Make a head cut
6c. Roll three rafters
6d. Bump the fourth
7. Cut 3 7a. Down cut on the inside of rafter 1
8. Cut 4 8a. Down cut on the inside of rafter 3
9. Cut 5 9a. Down cut on the outside of rafter 3
10. Cut 6 10a. Down cut on the inside of rafter 5
11. Cut 7 11a. Bottom cut 4’ below head cut
11b. Start inside rafter 1
11c. Roll rafter 2
11d. Bump rafter 3
12. Cut 8 12a. Bottom cut 4’ below head cut
12b. Start outside rafter 3
12c. Roll rafter 4
12d. Bump rafter 5
13. Open the first hole 13a. Louver over rafter 2
13b. Punch through sheetrock below
14. Open the second hole 14a. Louver over rafter 4
14b. Punch through sheetrock below
15. If conditions require a larger opening 15a. Extend down cuts on each hole
ROHNERT PARK FIRE DIVISION
TRUCK COMPANY STANDARDS
Title: 8 Cut Vertical Ventilation - Residential
Standard Number: 2 Time Standard: N/A
15b. Louver over rafter 2
15c. Punch through sheetrock below
15d. Louver over rafter 4
15e. Punch through sheetrock below
16. Exit Roof 16a. Sounder in front of the crew to egress
roof and sound for structural stability