What happens if the Air Test fails?
Should a dwelling fail to meet the required standards of air permeability, then the weakness should be identified (there are a number of particularly common areas). Remedial work should be carried out on the dwelling, then a new test conducted on that dwelling until it achieves the limit value in the TER. In addition, a further dwelling of the same dwelling type should be tested, thereby increasing the overall sample size. In addition to the remeadial work on a dwelling that failed the initial test, other dwellings of the same dwelling type that have not been tested should be examined and, where appropriate, similar remedial measures applied.
