Flat Roof Terminal -OFT 1 - Felt & Asphalt 110mm

OFT 1 Flat Roof Vent/Terminal

Product features and benefits:
*Large free vent area/Low Pa resistance

Application:
Allows termination through a flat roof to ducting up to 110mm, With the spigot cut to 50mm allows ventilation into a flat roof to meet the requirements of Material Per Roof Type

This is the version suitable for an a Felt or Asphalt flat roof, which is 169931 on the data sheet. This consists of a main pipe (black) and an aluminium flange. Versions for other roof types will also have a ring of material around that flange.
The pipe dimensions are external.

Other versions for other types of roof material available: (Please ask for details)
Felt & Asphalt roofs: OFT-1 constructed with Polyethylene/Aluminium
EPDM roofs: OFT-1 constructed with Polyethylene/Aluminium/EPDM
Bitumen roofs: OFT-1 constructed with Polyethylene/Aluminium/Bitumen
PVC roofs: OFT-1 constructed with Polyethylene/Aluminium/PVC
The polyethylene material is fire retardant .

Colours:
*Black (Stack section only)

These are uninsulated, for insulated versions see the OFT-5.
The 110mm external diameter size is normal 'soil pipe' size and has an internal diameter of 100mm.