Rytons 9×6 Cowled Ventilation Set with Hit & Miss Ventilator TC18HCWL
Rytons 9″ x 6″ cowled ventilation set with hit and miss ventilator and telescopic cavity liner set with external cowl for background room ventilation. Cavity liner contains an internal baffle to reduce light and draughts.
External cowl protects against excessive weather conditions and alleviates air blasts through the cavity.
Equivalent area: 180cm²
WARNING: Not suitable for use in external walls in high-rise buildings with a storey 18m or more above ground level due to Regulation 7(2) and Building Regulations Approved Document B.
Not suitable for use in external walls in buildings with a storey 11m or more above ground level due to Building (Scotland) technical handbook 2019: domestic and non-domestic, 2.7.