| Function: |
| ROOF
FINISH |
VOID
VENTS |
| Felt |
OFT/1F |
|
| Free
Vent Area: |
110
Ø = 8400mm²
166 Ø = 20000mm² |
| Roof
Finish: |
Built-up
Felt. |
| Colour: |
Black. |
| Components: |
|
Size
Type
|
Diameter
(mm)
|
Height
Above Roof (mm)
|
Flange
Diameter (mm)
|
Depth
Below Flange (mm)
|
|
OFT/3F
|
110
|
250
|
330
|
50
|
|
|
166
|
300
|
363
|
50
|
|
| Features: |
OFT/3–
Void vents |
|
Pack Information: |
|
