MVHR Commissioning | Part F Certification | Air-Permeability Test | Extract Fan Testing | MEV Balancing | Heat Recovery Ventilation
We are BPEC qualified to commission MVHR systems, MEV systems and Mechanical Extract Fans. We are ATTMA accredited to complete air leakage testing (air permeability / air pressure) in new dwellings
Part F of the Building Regulations requires that domestic ventilation is notifiable work, ie. passed by Building Control. This means all domestic ventilation systems must be installed, tested and commissioned correctly before a Part F certificate is issued.
If you have an MVHR (Mechanical Ventilation with Heat Recovery) system or MEV (Continuous Mechanical Extract Ventilation) installed, not only will you require the system to be balanced and commissioned but Building Control will also request a Part F Certificate to ensure the MVHR or MEV system is balanced and working correctly. If you have standard Mechanical Extract Fans you will also be asked to provide recorded flow rates to meet Part F ventilation rates.
MVHR commissioning involves adjusting the fan speed in line with the air valves to make sure the air-flow is as good as possible. We take airflow readings using an anemometer, and carefully adjust each valve’s performance combined with the fan speed of the MVHR unit until we can record the correct flow rates. Ideally, you want the MVHR unit itself to run on the lowest setting possible. It should be set to run at its most energy efficient while meeting the air-flow requirements regulations and providing the perfect level of comfort. The lower the setting, the quieter the MVHR unit will be. It’ll also use less electricity and enjoy a longer lifespan.
Once we’ve commissioned your ventilation system whether it is a whole house MVHR system, MEV system or standard Extractor Fans we will provide you with a Part F certificate which you give to Building Control.
We have extensive experience and knowledge of commissioning all manufacturer's ventilation systems so if you require balancing, commissioning and a Part F certificate for your ventilation system anywhere in the UK then please contact us for a quotation.
Air-Permeability testing is a requirement to meet Part L1a. We are ATTMA (Air Tightness Testing & Measurement Association) qualified to undertake air-leakage testing on new residential dwellings.
Our non destructive test is usually carried out at the end of the construction process and we can arrange to fit in the test around you, give advice on how to prepare, provide advice on how to pass and provide feedback directly after the test have been completed.
Air-tightness of a building is also known as 'air permeability' and when measured is referred to as the buildings air leakage rate. Air leakage can occur through gaps, holes and cracks in the fabric of the building envelope (service penetrations, wall and roof junctions etc), which are not always visible.
Following the air-leakage test we will provide you with an ATTMA (Air Tightness Testing and Measurement Association) test measurement certificate which will be required by Building Control. The SAP assessor will also require a copy of the air test certificate in order to finalise the as-built SAP calculations and lodge the final EPC (Energy Performance Certificate).
Please contact us by email or call us to discuss your requirements further or to arrange a test.
Office 01892 506940 / 01444 657756 or mobile 07999 987269