Packs consisting of one or more airbricks, a cross cavity duct/ sleeve, an internal grille and a DPC cavity tray.
Provides ventilation to habitable rooms and combustion air to rooms containing a boiler.
Packs comprising one or more Cavibricks (airbricks), a cross cavity duct/ sleeve, an internal grille and damp proof course cavity tray providing a choice of three air flow rates.
Features and benefits:
Standard/ default colour. Other colours require special order.
Unplasticized polyvinyl chloride.
75 x 225 mm.
Single brick size, airflow rate 6700 mm².
150 x 225 mm.
Two brick size, airflow rate 13 700 mm².
225 x 225 mm.
Three brick size, airflow rate 20 700 mm².
F30/17 Ventilation ducts in external walling
F30/171 Ventilation ducts in external walling
Unplasticized polyvinyl chloride (PVC-U) and polypropylene.
Installing ventilation ducts in external walling.
Ventilation pack number
Single brick size (75 x 225 mm); airflow rate 6700 mm².
Two brick size (150 x 225 mm), airflow rate 13 700 mm².
Three brick size (225 x 225 mm), airflow rate 20 700 mm².
Internal grille colour.
Duct/ sleeve and Cavitray colour.
Length of duct/ sleeve.