All Navitus BER Assessors are registered with the Sustainable Energy Authority Ireland (SEAI) and are fully insured.
We have a full range of assessors who are able to offer the following services:

Air-Tightness Tests Instead of using default values of up to 0.63 air changes per hour (ac/h), an approved air-tightness test for your building will indicate the actual number of air changes in your building. This is beneficial for efficiently built and refurbished buildings, as a lower air change rate will raise your rating.

A Building Energy Rating (BER) is a certificate indicating the energy rating of a building. It is clearly shown in different "bands", A1 being the best and most efficient through to G being the least efficient.

The calculation includes building fabric, ventilation, space and water heating, and lighting. These values coupled with measurements provide the building energy rating. Domestic BER

The scheme is a requirement under the EU Energy Performance of Buildings Directive and since January 1 2009 a BER certificate is legally required by anyone selling or renting a property in all EU countries.

This certificate is valid for 10 years provided that no substantive work is carried out on the property in the mean time in which case a new cert should be issued.

The BER will offer tangible benefits to the prospective occupier of the building, whether residential or commercial, by allowing them to compare the performance of different buildings on a common and consistent basis.

An advisory report will accompany each BER certificate providing information on a range of actions which can be taken to improve the energy efficiency of the property. These actions are not mandatory and can be carried out at the discretion of the owner.

The Sustainable Energy Authority of Ireland (SEAI) has been designated as the issuing authority with responsibility for the registration of BER assessors, logging of BER assessments and the overall administration of the BER scheme.

Factors influencing the BER rating:
  • Size of Building
  • Construction Materials
  • Wall and roof insulation
  • Quality of External Doors and Windows
  • Ventilation Systems
  • Heating System
  • Fuels used to heat the building & water
  • Alternative Energy Technologies in place
For further information please contact NAVITUS today


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