Black Combination Air Brick Vents 9" x 3" for Air Flow Ventilation access_doors_panels The telescopic feature enables it

The telescopic feature enables it to be adjusted between 3 and 5 brick courses

Width: 75mm

The SmartVerge Ambidextrous dry verge system provides an attractive finish to the verge detail of a roof for most makes and profiles of interlocking tiles laid between a batten gauge of 255mm to 345mm

Timloc loft access doors contain polystyrene insulation with a Thermal Conductivity of 0

Black Combination Air Brick Vents 9" x 3" for Air Flow Ventilation access_doors_panels The telescopic feature enables itProduct Description Black 9" x 3" Air Brick Vents Plastic interlocking air brick ventilator. Clip together facility provides a choice of ventilation sizes. Can be stacked together to create 9" x 6" and 9" x 9" combinations. Moulded in mortar key ensures secure adhesion to the building fabric. Meets NHBC requirements for the control of condensation in buildings. Manufactured to BS 493: 1995 + A1: 2010. Other colours and ventilation fittings for this