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Mousemesh and Airflow: Technical Data

Mousemesh are conscious that airbricks are designed to allow air flow into buildings and have commissioned a testing programme to measure the air flow through an airbrick over which a Mousemesh grille had been secured.

The following results were obtained by L & F Solutions:

The equivalent area calculation for Mousemesh are:

  • Single ventilator grill equivalent area:: 10,380 square millimetres- 77% free air flow
  • Medium ventilator grill equivalent area: 20,780 square millimetres - 77% free air flow
  • Large ventilator grill equivalent area: 31,470 square millimetres - 77% free air flow

Mousemesh will not interrupt air flow, even with atmospheric conditions taken into consideration any perceived interruption is negligible. It is, however, advisable to maintain Mousemesh grilles once fitted by using a small brush to clear any obstacles such as the build up of dust, leaves etc.

L & F Solutions are members of the Air Tightness Testing Association (ATA) and they may be contacted at:

L & F Solutions
Unit 3 Beech Farm Offices
Lymm Road
01925 758999

Visit the L & F web site

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