Brick Vents, Periscope Brick Vents

Underfloor Periscope Vent

Features & Benefits

• Telescopic and adjustable for a step of 3,4 or 5 brick course height
• Horizontal and vertical extension accessories available
• Lightweight and easy to handle
• Durable and totally resistant to decay
• Equivalent ventilation of 6000mm2 per unit
• Suitable for new build or Retro-fit
• Special grille included to prevent entry of vermin
• Easy installation with interlocking components

Installation

1. To be used in conjunction with ICON airbricks
2. The airbrick and upper front of the telescopic underfloor ventilator must be positioned above the finished external ground level—usually at the same level as ground DPC
3. The lower rear opening of the product must project down to the level of the underfloor void and must not be obstructed by the floor construction. A vertical extension sleeve is available if additional depth is required.
4. Building regulations require a fee airflow below suspended ground floors of at least 1500mm2 per metre run of wall. However, such a wide spacing is not recommended as stagnant air pockets could form in the underfloor void. A spacing of not more than 2m centres is recommended and not more than 450mm from end of wall.
5. Ventilators should be positioned down two opposite sides of the building to create a cross ventilation action. In complex designs or voids with dividing walls, it may be necessary to position around the full perimeter of the building.

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