Double or triple glazing in Switzerland?
Triple glazing generally reduces heat transfer through the glass more, but it is not automatically the best option for every renovation. Compare complete-window Uw, solar g-value, orientation, weight, building condition and installation. A reliable quotation identifies the glazing build-up and calculated dimensions.
Quick comparison
Pane count does not describe the complete window. Glass, frame, spacer and dimensions determine Uw together, while the g-value describes solar gains.
| Criterion | Double | Triple |
|---|---|---|
| Glass insulation | Usually higher Ug | Usually lower Ug |
| Weight | Lighter | Heavier |
| Solar gains | Depends on build-up and g-value | Depends on build-up and g-value |
| Renovation | May suit the project goal | Check frame, hardware and support |
When triple glazing makes sense
It is often relevant for ambitious energy targets, exposed elevations or demanding building standards. The complete window and summer comfort still need project-specific assessment.
When double glazing may remain coherent
In partial renovations, weight, compatibility with an existing frame, solar gains or an otherwise poorly insulated envelope may influence the decision. This requires project analysis rather than a universal rule.
Examples from our supplier systems
Kömmerling 88 accommodates triple or functional glazing up to 58 mm. Aluprof MB-86N provides a wide infill range and can support triple, acoustic or security glazing. Aliplast Genesis 75 variants also accept insulating and acoustic glass. Final compatibility always depends on the profile, sash, dimensions, weight and ordered configuration.
What the quotation should state
Request Ug, Uw, g-value, glazing build-up, spacer, thickness, weight and calculation dimensions.
- Compare identical sizes and openings
- Check complete-window Uw
- Assess solar g-value and orientation
- Confirm hardware capacity for the weight
- Coordinate installation and ventilation
Related guidance
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Request a free quoteFrequently asked questions
Quick answers
Does triple glazing always insulate better?
The glazing generally has a lower Ug, but complete-window performance also depends on the frame, spacer, dimensions and installation.
Does triple glazing reduce solar gains?
That depends on its build-up and g-value. Compare the declarations for the actual glazing offered.
Can triple glazing be fitted to an old frame?
Not always. Weight, thickness, glazing beads, hardware and frame condition must be checked.
Which glazing suits a renovation?
The answer depends on the energy target, existing envelope, orientation, comfort, dimensions and budget.