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Internal Plastic Grilles

Internal white plastic grill and louvre vents for sustaining airflow and reducing drafts

  • available in 6x3", 9x3", 9x6" and 9x9" sizes
  • to cover the inner opening on through walll cavity sleeve ventilators.

All grilles, including the adjustable (hit & miss), feature the same attractive louvred design.

View product range & add to quote

Features & Benefits

  • Aesthetically pleasing
  • Simple screw fixing
  • Excellent airflow properties
  • Durable and totally resistant to decay
  • Compatible with Timloc Through Wall Cavity Sleeve Ventilators

Applications

  • To cover the internal opening on a through wall cavity wall sleeve
  • Into walls and doors to provide free air flow

Technical Information

Plastic louvre grilles:

  • permanently open vent with no flyscreen or closing method
  • with visible airflow marking to comply with the requirements of BS5440 Part 2 and BSEN13141-1
  • suitable for gas appliance ventilation.

Louvred grilles with flyscreen:

  • are a permanently open louvre with an integral flyscreen
  • with no airflow indication
  • not suitable for gas appliance ventilation.

Adjustable (hit & miss) grilles:

  • can be opened or closed
  • with an integral flyscreen
  • not suitable for gas appliance ventilation.

Installation Advice

If there is any doubt regarding the correct method of installation please don’t hesitate to contact the Timloc Technical Team for further advice.

  • Internal grilles should be positioned over the internal opening of the cavity sleeve and fixed to the wall using screws and wall plugs
  • External cowls are positioned over the face of the airbrick and fixed to the wall using screws and wall plugs
  • The opening of the cowl should face down towards the ground
  • Never block or restrict the flow of air through these ventilators
  • The louvre grilles have no insect screen fitted - in order to comply with British Gas requirements
  • Use open louvre grilles when ventilating a gas or heat producing appliance - never use hit & miss grilles in such situations

How to Order

  • State the grille or cowl size, and whether louvre, flyscreen or hit & miss grilles are required
  • Important:  Only open louvre grilles are suitable for ventilating a gas or heat producing appliance - never use hit & miss grilles in such situations.

Quality and Standards

  • Manufactured to BS EN ISO 9001 Quality Management System
  • Manufactured to BS EN ISO 14001 Quality Management System
  • Satisfies all NHBC requirements
  • Complies with all relevant Building Regulations
  • Meets all relevant British Standards

Material and Colour

  • Manufactured by injection moulding in ABS/HIPS
  • Available in white only
  • nbs plus
  • riba

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