Manthorpe Telescopic Underfloor Vents

 

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Designed to provide a clear airflow passage to the void underneath a suspended floor.

Provides 6,600mm² of airflow.

Meets NHBC requirements for the control of condensation in buildings.

 

 

G960 Telescopic Underfloor Vents

The G960 Telescopic underfloor vent is designed to provide a clear 6,600mm² airflow passage to the void underneath a suspended floor. 
The telescopic feature enables the ventilator to adjust vertically between three and five brick courses.
The right airflow can be achieved when the ventilator is used with a Manthorpe G930 airbrick.

 

     

 

 

G961 Extension Sleeve

The G961 Vertical extension sleeve has been designed for use with the Manthorpe telescopic underfloor ventilator (G960).                                                                                                                   Each unit extends the under floor ventilator a further 150mm vertically or 185mm horizontally.
Each extension sleeve allows the vent to reach a further two brick courses vertically. The sleeve can also be fitted to the base of the G960 to provide horizontal extension through larger cavities. 

 

     

 

 

G935 Cavity Extension Sleeve

The G935 Combination cavity Sleeve fits into the back of Manthorpe’s G930 airbrick to ventilate through a standard cavity or solid brick wall. Can also be used for front extensions to the G960 telescopic vent.
The unit can be stacked to create a 9 x 6 and 9 x 9 alternative, and telescopes to fit cavity widths of 50mm to 100mm, with further extension possible through the addition of extra product units.
The G935 also includes an integral wind baffle.                                                                           Each pair of extension sleeves adds on a extra 120 - 280mm to the airbrick.

 

     

 

 

G962 Remote Void Vent

The G962 remote void ventilator is designed to connect the G930 airbrick or G960 underfloor vent to a 4” round pipe or alternatively Manthorpe’s GRPA/1 flexible pipe.
The adapter fits directly onto the bottom of the G960 under floor Vent and can be easily cut down between the pre moulded cut lines to fit the G930 airbrick.

 

     

 

 

G930 Airbrick

The 9" x 3" airbrick incorporates a front mounted grille with water deflectors. A mortar key around the edge of the airbrick ensures it can be securely fixed to the building fabric and a clip together facility provides a choice of ventilation sizes. Clip together facility provides a choice of ventilation sizes. Can be stacked together to create 9" x 6" and 9" x 9" combinations.

 

   

 

 

Regulations & Standards

BRE Digest 17.

BRE Digest 262.

Building Regulations C4.

NHBC Standards 5.2.

BS 5250:2011 Control of Condensation in Building.