On April 7 2006 the new Part L1A Building Regulations came into effect, Then 1st October 2010 changes came into effect. It concentrates on the conservation of fuel & power within new dwellings. All new dwellings will require an Air tightness test, or 50% or 3 of each new dwelling type* whichever is smaller, to show the Building Control officer or Accredited Inspector that each dwelling will comply with regulations.
An Air tightness test consists of a computerised fan being fitted to a main entrance or suitable doorway. The fan blows large amounts of air into the building. Gauges are used to measure pressure temperature and air flow within the building. This will calculate for us the amount of building leakage.
If the building fails we can assist in identifying and isolating the problem/s and finding a solution to achieve a Pass.
A report which includes a BINDT numbered certificate is then issued for submission to building control.
If we have also done your SAP Calculations we can use measurements from the drawings to calculate the envelope area, but we can also do this on site if required.
All testing is carried out by ANC or UKAS Accredited personnel.
Call us for more information or to book your Air pressure test today.
*At least 3 dwellings or 50% of every type within a residential development must undergo Air pressure testing to ensure the assumed level of permeability used in SAP Calculations has been achieved.