| Description | Unit |
|---|---|
|
Black Telescopic Vent (use with combination airbrick) |
each |
|
Underfloor Duct Adapter to 100mm Pipe |
each |
|
Vertical Extension Sleeve
|
each |
Underfloor Ventilation
Used in conjunction with the combination airbrick to achieve approximately 6600mm of free airflow (which complies with the latest building regulations 1985 C4 and the recommendations of the NHBC). Installed in normal brickwork below the DPC and adjusted to three of four courses as required, or it may be cut down to two courses.
Underfloor ventilation accessories listed below
