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By building to air tightness standards and being aware of building a tighter property, building standards will improve, giving a better end product for the client, and the overall running costs and efficiency of the property will improve. 

The better the final air tightness test result, the better the energy calculation, which in turn means the final EPC (Energy Performance Certificate) will have a higher rating. 

Not only will your EPC have a higher rating, but your building will also run more efficiently, your heating and lighting costs should be less, and the energy efficiency will be better. 

Air tightness testing is a mandatory requirement of Part L of the building regulations for a new build property, whether residential or commercial. All new build buildings must be tested.  

The air tightness test of a building is guided by a set target within the energy calculation (SAP or SBEM). The overall calculation determines the target figure. The better the air test result, the less leaky or draughty your property will be. As a minimum, the target figure must be met or bettered to pass the air tightness test. 

You must provide a copy of the air test certificate and EPC to sign off your building upon completion of the build. Once provided, building control can sign off the build. 

The building should be tested as soon as it is complete, as all the final finish has been completed and the best chance of a successful result is possible. Once the property becomes occupied and lived in, the fabric of the building will change.  

The more advanced the build and final finish, the better the result will be. Most leakage points will be sealed, the better the finish, the better the result. 

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"A very prompt and efficient service that dealt with every aspect of my requirements in a professional way. If you're in need of any testing requirements to meet building regulations I'd recommend ATSPACE every time."

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"Thank you for the Smoke shaft Air Pressure Test. The whole experience with ATSPACE has been a pleasure from the start and we are looking forward to working with you on the next job.”

Brian Keane, C.E.O, Cameron Ventures Group

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"Just a note to thank ATSPACE for the excellent service received on this most recent project. Your engineer put himself out to ensure that the Smoke shaft Air Pressure Test was carried out with the minimum of fuss (in a very tricky environment) and was a pleasure to have on site."

Olly Wigg Director, Bowson Leeway Homes

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