Air Tightness Testing N.I.
WHY TEST ?
Reducing Carbon Emissions : Part F is a vital part of the Government’s strategy towards achieving the UK’s carbon emissions reduction targets. Air leakage accounts for a large proportion of the energy wasted in buildings.
Reducing Energy & Plant Costs : Reduced air-leakage is in the interests of building's owners and/or occupiers as substantial savings in both heating and cooling costs could result.
Protecting the Building Fabric : If warm, moist air is allowed to leak into the external wall cavities of a building, it will tend to cool and form interstitial condensation. This builds up over time leading to breakdown of insulation, damp patches and deterioration of the fabric,
Increased Comfort : A reduction of draughts leads to a warmer house hence more comfort for its occupants.
Typical air leakage paths
A typical air test involves a number of steps:
In the event of a building failing its air permeability test, the priority becomes finding the sites of excess leakage to enable remedial works to take place.
Localised Smoke Testing
While this procedure is the more laborious and time consuming diagnostic technique, we believe it to be the most effective as it pin-points the individual leakages sites, where they need to be addressed - inside the building