Frequently asked questions

Responses to doubts and questions about the Noise Insulation Schemes.

What is the acoustic footprint?

The acoustic footprint is the sphere of action of the Noise Insulation Schemes.

What actions are underway for the Noise Insulation Schemes?

For correct execution of the Noise Insulation Plans the following must be completed:

  • Definition of the sphere of action (acoustic footprint of airport).
  • Drawing up a survey and type of dwelling affected.
  • Presentation by interested parties of request for acoustic insulation acts.
  • Noise measurements from the interior of the houses for determining possible soundproofing acts.
  • Proposal of soundproofing measures and creation of insulation projects for dwellings.
  • Planning and execution of necessary works for correct insulation of housing and buildings for sensitive use.
  • Checking the effectiveness of the action by measuring noise reduction and customer satisfaction following the completed action.

Aena notifies the Committee created for monitoring the corresponding Noise Insulation Plans about all these actions.

What are the requirements for sound-proofing?

The Requirements for a building to be included in the Noise Insulation Plan and receive soundproofing are:

  1. It must be located in the acoustic footprint of the airport.
  2. It must have a building licence before the Environmental Impact Statement applicable to it.
  3. Buildings must be for residential or sensitive use (teaching, healthcare or cultural requiring special protection from noise pollution).
  4. After noise measurements have been carried out inside the buildings, a need was found for acoustic insulation, to meet the noise quality objectives set out in table B of Annex II of R.D. 1367/2007, 19 October RD/1367.

What are the main insulation actions?

These include acoustic insulation of gaps in housing by better quality work, maintaining the aesthetic conditions of the buildings and their integration in the landscape.

However, the actions depend on the noise level of each house, generally defined by the isophone curve at night, which is least favourable.

In exceptional cases there may be the need to perform work on roofs and façades.

After buildings in the Noise Insulation Scheme are sound-proofed, what acoustic levels must they meet?

The soundproofing is intended to reach the noise quality levels of table B in Annex II of R.D. 1367/2007, 19 October. These are:

Noise quality objectives
Use of building Type of site Noise rating
Ld Le Ln
Housing or residential use Rooms 45 45 35
Bedrooms 40 40 30
Hospital Rooms 45 45 35
Bedrooms 40 40 30
Education or cultural Classrooms 40 40 40
Reading rooms 35 35 35