The energy qualification of a property is determined considering several factors. Among them, it is important to point out for its influence in the final result the composition of the closures and the characteristics of the installations. When preparing an energy certificate, information about these aspects is essential.

The more information you provide to the certifier, the more he/she will be able to fine-tune the energy ranking of your property. You must keep in mind that if there is no available data about those aspects, the authorised official programmes employedfor the calculations use conservative “default values” which will penalise the grading. That is, the less data is provided and the more “default values” are used, the worst the result will be, being possible to lose up to two grades by lack of information.

That is why, in order to obtain the best possible grading for your property, it is very convenient to provide the certifier with all the available information relating to: 

- The type and thickness of the insulating material of walls, floors and roofs.
- The window’s characteristics (thermal bridge brake, low emissivity glasses, etc.)
- The installation’s characteristics (power rating, efficiency, insulation, etc.)

For homes, data about the existing installations of heating, water heating and cooling systems, renewable energies (solar power, etc.) or cogeneration should be provided. For other type of properties, in addition to the existing installations, information about lighting conditions, primary air, ventilation and pumping should be supplied.

It will be worth it to dedicate some time to finding the documents containing that information, such as the construction project of the property, the instructions or manuals of the different installations, etc. Please keep in mind that providing the mentioned information you could easily help you obtain an improvement of two grades in your energy certificate.

It is also necessary to supply the property’s cadastral reference, since regulations oblige to include it in the certificate. You may find this reference in your IBI (Impuesto sobre Bienes Inmuebles, property tax) invoice or consulting the cadastral web page. Our technicians could consult it for you if the exact address is given when ordering the certificate. Ideally, the technician would have the cadastral reference before the visit in order to corroborate it and also helping him to better locate the property.

Finally, it is very convenient to provide the property’s plans (speeding up the certifying process) and the invoices of the energy consumption for the last 12 months (helping to fine-tune the energy performance improvement measures proposed in the certificate).