We offer full consultation for air tightness

We do the full range of consultation, testing, research and renovation proposals to get your trouble with draught, heat loss, dampness or mould solved.

This service is suitable for new building projects an existing houses.

Please find some images about our work down below.

Please feel free to contact us, if you want to get your issues solved instantly.

Air Tightness Testing

We provide the full range of air tightness testing, according to EN 13829 (which will be replaced by ISO 9972 soon).

 

To ensure a good official testing result, we recommend a pre-test for the building during the construction stage. Because of the fact that the final test (official test according to Part L of the building regulations) has to be made at the very end of the construction phase, the options to eliminate possible existing leakages are very limited.

 

The maximum value for passing an air tight test here in Ireland is 7. We are not happy about this value because it allows an air exchange of up to 7 times per hour on a wind speed of 5 (Beaufort) or 9 m/s.

A comparison to the German regulations will easily explain how good (or poor) the minimum Irish value for air tightness is.

In Germany, you have to achieve a value of 3 or better for new houses without mechanical heat recovery ventilation and 1.5 or better for houses with MHVR.

There is one small difference between the Irish and the German regulation. Whilst we´re calculate the ratio between Air Flow and Building Envelope here in Ireland, to achieve the so-called q(50) value, the most other European countries are measuring the ratio between Air Flow and Internal Building Volume. They state their results as n(50). Depending on the shape of the building, the q(50) value can be almost equivalent to the n(50) or up to 25% higher.