Plastics airbrick and optional associated accessories for cavity walls.
Airbrick 1201 is used with appropriate associated accessories in external walls to provide underfloor ventilation below suspended ground floors, or ventilation to the building interior.
Air brick - UV stabilized polypropylene
Accessories and external cowls - polypropylene
Use with single air brick to provide 6170 mm² (maximum) equivalent area.
Use with two stacked air bricks to provide 12340 mm² (maximum) equivalent area.
Use with three stacked air bricks to provide 18510 mm² (maximum) equivalent area.
As shown on drawings
225 x 150 mm, colour Rustic red.
225 x 150 mm, colour Buff sand.
225 x 150 mm, colour Rustic brown.
300 x 300 mm, colour Brown.
300 x 300 mm, colour White.
|Standard product features|
Free air area and equivalent areas:
1201 - Telescopic cranked underfloor vent, features:
1202-1/ 1202-2 and 1202-3 - Cavity sleeves, features:
1203 - Horizontal front extension sleeve, features:
1204 - Vertical extension sleeve, features:
Installed between the upper and lower halves of the cranked vent to accommodate a vertical step of more than 5 brick courses (375 mm). The addition of multiple units provides rises as follows:
Colour - black.
1205 - Duct adaptor, features:
1206 - Horizontal rear extension sleeve, features:
External cowls, features:
Installed over airbricks to help reduce draughts caused by wind blasts.