2.1.11 Installation of efficient windows (double glazing with PVC frames)
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 PVC frames. A typical transmittance of this type of windows is between U=1.7 W/m2K and U=2.9 W/m2K, better performance than inefficient windows which have a typical transmittance higher than 4 W/m2K.
Benefits
Airtightness improved
Limited condensation
Reduce heat losses
It allows a perfect soundproofing and it reduces noise pollution
It is a durable and resistant to cold and air material, very suitable for cold areas
It does not need any special treatment for its conservation, just wash it with soap and water without risk of rot or damage to the material
There is a wide range of colors, although white is the most widely used color, there are imitation wood, without a too high price
Limitations
Double glazing cannot be repaired
During the summer months, trapping heat inside glass panes can lead to a suffocating and uncomfortable room
PVC frame is more expensive than the rest
PVC with high temperatures can be deformed
PVC is a polluting material
Economic assessment
Energy costs are reduced.
References and best practices
- Thermal convection in double glazed windows with structured gap:
www.sciencedirect.com/science/article/pii/S0378778811001551 - Low heat loss double-glazed windows:
www.sciencedirect.com/science/article/pii/0360544287900429 Carbon footprint versus performance of aluminum, plastic, and wood window frames from cradle to gate: www.mdpi.com/2075-5309/2/4/542/pdf
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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
