Mousemesh and Airflow: Technical Data

At Mousemesh we have commissioned a testing programme to measure the air flow through an airbrick over which a Mousemesh grille had been secured. This is to ensure that airflow in not significantly affected by our Air Brick grills.

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
Thelwall
Werrington
WA4 2TG
01925 758999

Visit the L & F web site

All members of ATA have been accredited by UKAS to ISO/IEC 17025, with a scope covering air tightness testing to ATA technical standard 1 and BS EN:13829 (2001). This third party accreditation demonstrates the technical competence of ATA members in carrying out air tightness testing, including calibration of equipment used and training of staff carrying out the test.