/, Contextual, Cooling, Envelope, Heating, Long term, Owners, Physical environmental, Psychological/2.1.3 Adding insulation in air chambers of walls through injection

2.1.3 Adding insulation in air chambers of walls through injection

2.1.3 Adding insulation in air chambers of walls through injection

Description

In the case of the existence of air chambers in the thermal envelope of the building to retrofit, it is possible to fill these chambers with thermal insulation. The most common methods are the injection of polyurethane (PUR) foam and cellulose.

Benefits

  • Ease of execution without scaffolding

  • Conservation of the outside appearance of the façade

  • Preservation of the useful surface of the housing

  • Minimum replacement of the original works

  • This solution can be used when other possibilities of insulation implementation are discarded

Limitations

  • Inability to effectively control foam expansion due to the frequency with which the cameras have interruptions

  • It cannot be used when the camera has as an end wall ventilation

  • The degree of control over the end result efficiency is low (auxiliary means needed: thermographic camera)

  • The application of these solutions involves the creation of numerous thermal bridges

  • Require special attention, both for the assessment of their suitability as for execution

  • Waterproofing of the enclosure cannot be guaranteed in any case with this system.

Economic assessment

Initial investment: low around 7 €/m2

References and best practices

Image gallery

CHARACTERIZATION

Environment or playable world:

  • Residential

  • Academic

  • Offices

  • All

Carried out by:

  • Public building users

  • Owners

  • Operators

  • All

Reduce consumption of:

  • Heating

  • Cooling

  • DHW

  • Lighting

  • Electric devices


Type of driver:

  • Physical environmental

  • Contextual

  • Psychological

  • Physiological

  • Social

Time framework:

  • Short term
  • Long term

Type of measure:

  • Envelope
  • HVAC
  • DHW
  • Lighting
  • Electrical devices
  • Other
Print to PDF
Print this page
2018-01-22T09:07:17+00:00