Air Tightness/Pressure Testing in UK | Southern Assessors

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Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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Air Testing - Domestic Commercial Testing
Air Tightness testing also known as Pressure
Testing is a mandatory requirement for newly
built homes and Commercial buildings under Part
L1 of the Building Regulations. The test measures
the air leakage which is the uncontrolled flow of
air through gaps and cracks in the fabric of the
building.  This is not to be confused with
ventilation which is the controlled flow of air
through purpose built ventilators which are
required for the comfort and the safety of the
occupants.It is necessary for any kind of newly
building structures to comply with the stringent
features under Part L1 of the Building
Regulations for performance evaluation. One of
the mandatory requirements of building
regulations is to reach the apt and sustainable
air tightness in building and also essential to
have good ventilation for the comfort of the
occupants. We perform air testing in all parts of
the UK, among the major cities are Air Testing
sussex , Air Testing London , Air Testing
Dorset , Air Testing East sussex .
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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Our Air Tightness Testing Services

• Experienced Accredited Engineers
• Pre-test check list sent upon booking covering
  typical areas of leakage and what preparation is
  required before the test in order to pass
• In the event of a failure- The engineer will
  locate the air leakage free of charge, as long as
  the areas can be rectified whilst on site by the
  clients work force a FREE RE-TEST will be
  carried out.
• Results provided whilst on site.
• Professional and reliable service
• We will beat any like for like quotation

Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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What is the impact of Air Leakage Test?

• Checking substantial amount of air tightness in
  newly constructed building is critical for
  evaluating the performance of a building
  structure under Part L1 of the Building
  Regulations. Air leakage is an uncontrolled flow
  of air in the cracks and some parts of the
  building that can accumulate large amount of
  moisture in the fabric of the buildings and harm
  the occupants health in the long run. It also
  has an impact on energy efficiency, sound control
  and fire control.The air testing is the most
  considered concept in the building structures as
  it can be controlled or filtered unlike
  ventilation.
• The real impact of air leakage in building
  structures cause
• It finds ways to reduce heat loss with
  significant infiltration as ventilation in
  building structure for its basic quality of
  uncontrolled flow.
• Air leakage of few building can be sometimes
  better than ventilation and air-conditioning
  (HVAC) systems during extreme conditions.
• Excessive Air leakage leads to difficult
  situations while controlling ventilation systems.
• To reduce noise transfer through leakage paths.

Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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Why should we do air leakage testing?
Air Leakage Testing is necessary for all
buildings to reach the targets under Part L of
the Building Regulations. We find gaps and cracks
often in building fabrics, but not all can be
detected by simple visual inspection that can
cause air leakage in the fabric of building as a
whole.  In order to maintain air tightness, Air
Leakage testing is compulsory. Air tightness can
be measured to quantify Air permeability. Air
leakage can cause storage of excess moisture
which can cause harm to the occupants of
buildings.
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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How we do Air Testing
The Leakage of air is measured with a door blower
fan system which is placed at outermost entrance
of the dwelling. When the Equipment is fixed and
ready to test, then all of the ventilations in
the building have been completely closed as per
the Pre-Test checklist conditions. Once all is
done properly the fan will De-pressurize the
whole building to supply the Air
PermeabilityThe test measurement is determined
by the leakage of air (m3/hour) in or out of the
building per square meter of the buildings inner
envelope with a considerable pressure of 50
Pascals with a difference of inside and outside
of the building. To get the Successful Air
tightness / Pressure test results, the result
must be less than or equivalent to the Design Air
Permeability as per the SAP Calculations.
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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Contact Us
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk