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Manchester - Air Testing - 0161 403 0129

What Air Permeability Rating Do I Need?

A dwelling in Manchester must receive an air permeability result of 10 m³/(h.m²) to successfully pass an air leakage test. However, in the design stage SAP, the APR will often produce a more accurate and realistic target. Should your air test fail, the dwelling may need re-testing following some potentially costly revisions - that's why it's always a good idea to seek advice early. To restore confidence with Manchester Building Control, you may also need to test further properties in your group, where applicable.

Our air testing consultants offer constructive advice on the best way to reach your target rating.

Do I Need An Air Leakage Test?

Domestic properties and commercial buildings over a certain size must have a passing air leakage certificate before the property can be handed over following a sale. All new buildings in England and Wales have had this requirement since 2006 and in Scotland this has been mandatory since 2010.

On a large plot of new houses that are built to a similar specification, only a sample of the houses will need to be air tested. This was outlined in Part L of the aforementioned regulations.

We offer air leakage testing throughout Manchester and the surrounding areas where our experienced assessors will be happy to offer advice on the best ways to gain your air permeability rating. Planning your test in advance will help us determine how many test you'll need ahead of time per property and we always ensure we agree with the Building Control air testing regime.

We provide air testing for Manchester - stated on the table below are the number of air tests you may require.

Our accredited consultants can help you comply with EPBD Article 9 and the Energy Performance of Buildings Regulations.

No. of Dwelling Type Instances No. of Tests Per Type
4 or less One test of each type
Greater than 4, but equal or less than 40 Two tests of each type
More than 40 At least 5% of each type, unless the first 5 units pass, when the frequency can be reduced to 2%

We have expert consultants that will undertake an assessment of the efficiency of your air conditioning system, reviewing sizing / capacity and offering advice on any improvements or alternative solutions. These solutions, if implemented, can in many instances reduce costs and thus pays for the inspection in the first year.

We will seal all of the intentional leakage areas in the house prior to testing. These include:

  • Fireplaces
  • Extractor fans
  • Exhaust fans
  • Trickle vents
  • The odd uninstalled component

Everything else will have to stay 'as is' in the property.

To carry out such a test with accurate results, we require some general requirements to be made available at the time of the test: SAP Design air pressure test figure, an electricity supply and a water supply to enable traps to be filled.

Envelope

Area (m2)

Leakage Rates (m3/hr at 50Pa)
5 7.5 10 15 20 25
2000 0.51 0.76 1.01 1.52 2.03 2.54
5000 1.27 1.90 2.54 3.80 5.07 6.34
7500 90 2.85 3.80 5.71 7.61 9.51
10000 2.54 3.80 5.07 7.61 10.14 12.68
12500 3.17 4.75 6.34 9.51 12.68 15.85
15000 3.80 5.71 7.61 11.41 15.21 19.02
20000 5.07 7.61 10.14 15.21 20.29 25.36

It is a requirement under the Building Regulations 2006 Part L that new dwellings in Manchester must pass an air test prior to occupation; this test certificate must be produced for the dwelling to be signed off by local Manchester building control.

The report has all the details required by the regulations to indicate that a valid test has been performed.

For a quote or for more information, call our Manchester air tightness / pressure testing consultant on 0161 403 0129 or email query@air-testing-manchester.co.uk.

Towns in the Manchester area we cover include:
Accrington, Adlington, Aigburth, Aintree, Alderley Edge, Allerton, Alsager, Altincham, Anfield, Ashton in Makerfield, Ashton Under Lyne, Atherton, Bacup, Bamber Bridge, Barnoldswick, Bebington, Birkenhead, Blackburn, Blackpool, Bollington, Bolton, Bolton le Sands, Bootle, Brierfield, Burnley, Burscough, Bury, Cadishead, Carnforth, Chadderton, Cheadle, Chester, Childwall, Chorley, Cleveleys, Clitheroe, Colne, Congleton, Crewe, Crosby, Croston, Darwen, Denton, Dingle, Douglas, Droylsden, Dukinfield, Eccles, Eccleston, Ellesmere Port, Everton, Failsworth, Farnworth, Fazakerly, Fleetwood, Formby, Frodsham, Garston, Golborne, Grassendale, Halewood, Handforth, Haslingden, Haydock, Hazel Grove, Heswall, Heysham, Heywood, Hindley, Holmes Chapel, Horwich, Hoylake, Huntscross, Huyton, Hyde, Ince-in-Makerfield, Irlam, Kearsley, Kirkby, Kirkdale, Kirkham, Knotty Ash, Knutsford, Lancaster, Leigh, Leyland, Litherland, Littleborough, Liverpool, Longridge, Lymm, Lytham St Anne's, Macclesfield, Maghull, Malpas, Middleton, Middlewich, Milnrow, Morecambe, Mossley, Nantwich, Nelson, Neston, Newton le Willows, Northwich, Oldham, Ormskirk, Oswaldtwistle, Padiham, Parbold, Peel, Pendlebury, Penwortham, Port Sunlight, Poulton le Fylde, Poynton, Prenton, Prescot, Prestbury, Preston, Radcliffe, Rainford, Ramsbottom, Rawtenstall, Roby, Rochdale, Rossendale, Royton, Runcorn, Sale, Salford, Sandbach, Seaforth, Sefton, Skelmersdale, Southport, Speke, St. Helens, Stalybridge, Stockport, Swindon, Swinton, Tarporley, Thornton-Clevelyes, Trafford Park, Tyldesley, Urmston, Walkden, Wallasey, Warrington, Waterloo, Weaverham, West Derby, West Houghton, West Kirby, Westhoughton, Whitefield, Whitworth, Widnes, Wigan, Wilmslow, Winsford, Wirral, Worsley