/, Contextual, Cooling, Envelope, Heating, Long term, Owners, Physical environmental, Psychological, Social/2.1.9 Installation of efficient windows (double glazing with aluminium frames with thermal break)

2.1.9 Installation of efficient windows (double glazing with aluminium frames with thermal break)

2.1.9 Installation of efficient windows (double glazing with aluminium frames with thermal break)

Description

This measure consists in the replacement of inefficient windows (e.g. aluminium frame without thermal brake and single glazing) for an efficient one with double glazing and aluminium frames with thermal brake. A typical transmittance of this type of windows is between U=2.2  W/m2K and U=3.5  W/m2K compared to the transmittance of inefficient windows which typical is higher than 4 W/m2K

Benefits

  • Airtightness improved

  • Limited condensation

  • Sound insulation

  • Safety

  • Reduce heat losses

  • Easy cleaning

  • The aluminum frame is available in various colors

  • Aluminum is a strong and rigid material, its properties do not change with the weather and its rigidity is ensured at high and low temperatures

Limitations

  • The energy consumption for aluminium manufacturing is high.

  • Double glazing cannot be repaired

  • During the summer months, trapping heat inside glass panes can lead to a stuffy and uncomfortable room

  • The most common complaint of this frame is that in winter the aluminum sweat

  • It is a cooler material than the wood and PVC

  • Over time, the aluminum can become corroded

Economic assessment

Initial investment: high. It can be estimated an average cost of about 1500€ for each window, but this price vary greatly, depending on the size of the window and manufacturers. Energy costs are reduced.

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
2018-01-22T09:11:01+00:00