DUAL EXTENSION UNDERFLOOR VENT BLACK 320MM SQUARE PLASTIC COVER &

320MM SQUARE PLASTIC COVER & FRAME

Can be used to strengthen inside corners and is less conspicuous compared to those mounted on the face

C guidelines

10mm Max Tightening Torque 40Nm Anchor Length 130mm Washer Size 10mm Min Hole Depth 55mm

Used to drain lintels

DUAL EXTENSION UNDERFLOOR VENT BLACK 320MM SQUARE PLASTIC COVER &Packed: 1 Designed to provide a clear airflow passage to a void beneath an insulated suspended floor 8,000mm airflow Current and future requirements of Part L of the Building Regulations along with other standards and regulations have led to an increase in the depth of thermal insulation in suspended floors along with an increase in cavity widths to accommodate greater amounts of cavity wall insulation This has meant that clear access to an underfloor