G960 Telescopic Under Floor Void Ventilator

Injection moulded polypropylene telescopic underfloor ventilator. The G960 telescopic underfloor ventilator is designed to provide a clear airflow passage to the void beneath a suspended floor.

Features and benefits:

• The telescopic feature enables the G960 to adjust vertically between three and five brick courses; although a G961 vertical extension sleeve is also available for further multiples of two course adjustment as required.
• The rear of the vent features a rodent grille consisting of evenly spaced slots specifically sized to prohibit entry of rodents and building debris that could block the vent.
• The front aperture is able to take a G930 airbrick to achieve correct airflow requirements.
• The aperture can also accept a standard clay airbrick, albeit with a reduced airflow.
• The G960 ventilator should be installed during the normal course of bricklaying. If fitted above the DPC, a suitable cavity tray should be provided.
• The ventilator should be fitted in at least two opposing walls to create a through-flow of air: NHBC recommendations state 'Ventilators should be placed at maximum two metre centres and within 450 mm of each end of the wall'.
• Bricklaying should then be completed as normal, although care should be taken to keep the air passage clear of mortar droppings.
• The G960 should be used in conjunction with other Manthorpe products to provide a complete through wall ventilation system.