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SERVICES

Wightairtight have been providing Air Permeability Testing and Building Regulation Approved Document Part L compliance calculations since 2004. We offer a highly professional and flexible service to suit individual needs. For more information simply contact us and we will be happy to help.
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Air Permeability Testing

Air Tightness Testing (also referred to as Air Permeability, Air Pressure and Air Leakage Testing) is a means to quantify the extent to which buildings ‘leak’ air through their envelopes. Air leakage is a vehicle for energy wastage, resulting from the increased loads placed on the space heating and/or cooling systems. Improving air tightness is an important factor in reducing carbon emissions in buildings. The requirement for Air Leakage Testing of buildings in the UK is driven by the Building Regulations Part L – Conservation of Heat & Power.



We have successfully completed in excess of 1000 tests and are able to provide you with all the guidance to achieve the required compliance. Simply CONTACT US for more details.

SAP Calculations
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The SAP (Standard Assessment Procedure) calculation is used to demonstrate compliance with Building Regulations Approved Document L Conservation of fuel and power



The SAP is the UK’s standard method of measuring the overall efficiency of a property and is the Government’s recommended system for producing a home energy rating. It is used to calculate the Target Emissions Rate (TER) and the Dwelling Emissions Rate (DER).



The DER on your dwellings must be equal to or better than the TER to show compliance.



We not only undertake the calculations for you but provide you with help and advice as to how best achieve the compliance specific to your requirements. CONTACT US for more details.

One Stop Shop
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We provide a complete end-to-end service, so you don't need to deal with multiple companies for your building regulations compliance. Wightairtight can guide you through the often complex process of Part L building regulations, carry out your SAP calculation, undertake your Air Permeability Test and provide your EPC at both design and built stages.



If you are at pre-build stage on your development, it's advisable to consider the nature and timing of your SAP calculation and air testing requirements well in advance.



We will help you implement the specific measures required to pass Part L. We will also help you create a full testing plan, and tell you how many of each type of dwelling must be tested.



From your project plan, we can also advise on the most cost effective timing for your tests, so that site disruption can be kept to a minimum. We will also provide specific recommendations on the steps you need to take to ensure a PASS - at no extra cost.



CONTACT US for more help and advice for your project.

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