Wall, Cavity & Underfloor Ventilation

The telescopic underfloor vent is designed to be used where the external vent aperture is required to be at a higher level than the underfloor void. The telescopic design gives adjustment from 3 to 5 course height of brickwork (down to 2 if trimmed). Product Code HD 9600M Optional components HD

The vertical extension sleeve is a two course vertical extension sleeve for the HD 9600M. It can be used in multiples to achieve any desired height. Product Code HD 9610/2 Downloads Datasheet For more info on this product visit our Downloads page

Designed to extend the reach of the underfloor vent for varying cavity and wall leaf widths. Top Extension Sleeve Product Code: HD 9660T 140mm long for an outer leaf width of up to 170mm Bottom Extension Sleeve Product Code: HD 9660M 155mm long for an

The  brick vents come in standard brick size and permit high levels of ventilation through walls whilst also protecting from driving rain and large insect ingress. When used with the HD 9600M, they provide entry of air into underfloor voids of suspended floors. The bricks can

The square to round adapter is designed to fit the telescopic vent to enable standard 110mm plastic pipes to be connected to allow ventilation to remote underfloor voids. The adapter has an asymmetric design, suitable for use immediately below pre-cast concrete floors. Product Code HD 9620 Downloads Datasheet For more info on this

The semi rigid airbrick vent sleeve is designed to ventilate through a standard cavity wall. Accommodates the ‘clip-together’ facility of the HD 9300 air brick to achieve one, two or three brick fitting to suit the application. Product Code and Options HD 9350/1: Single HD 9350/2: Double HD 9350/3: Triple Additional Dimensions HD

The weep vent and lintel stop ends range combine to prevent moisture build up in cavities. Designed for use in traditional and timber framed construction. All of the products are made from polypropylene to ensure durability and peace of mind. The lintel stop end is used at

The weep vent and lintel stop ends range combine to prevent moisture build up in cavities. Designed for use in traditional and timber framed construction. All of the products are made from polypropylene to ensure durability and peace of mind. The weep vents provide ventilating air into the

The weep vent and lintel stop ends range combine to prevent moisture build up in cavities. Designed for use in traditional and timber framed construction. All of the products are made from polypropylene to ensure durability and peace of mind. Product Code HD 9100 Downloads Datasheet For

The weep vent and lintel stop ends range combine to prevent moisture build up in cavities. Designed for use in traditional and timber framed construction. All of the products are made from polypropylene to ensure durability and peace of mind. The perp weep extension clips to the