Glass options for aluminium window frames
The type of glass largely determines the comfort, safety and energy consumption of your home. At Aluwdoors, we work with laminated safety glass as standard and recommend the optimal combination of insulation, solar control and sound comfort for each project.

| 19-05-2026 | |
| Reading time: 2 minutes | |
| Materials, glass and colour |

HR++ glass - the reliable standard
✔ Good insulation
✔ Affordable
✔ Widely applicable
✔ Lighter weight
✖ Less insulating than triple with large windows
HR++ (triple) glass - maximum insulation
✔ Best insulation value
✔ High living comfort
✔ Less cold trap
✔ Better sound insulation
✖ Heavier and higher investment
Laminated safety glass - standard with Aluwdoors
✔ Extra burglar-resistant
✔ Safe in case of breakage
✔ Noise reduction
✔ Suitable for RC2/RC3
✔ Applied as standard to all our window frames
Solar control glass - comfort in summer
✔ Less heating of the home
✔ Less need for air conditioning or blinds
✔ Protects interior against discolouration
✔ Ideal for large south-facing facades
✖ Slightly lower light transmission
Comparison of HR++ and HR++
| Feature | HR++ | HR++ (triple) |
| Insulation value Ug | ± 1.1 | ± 0.6 (better) |
| Heat loss in winter | Low | Very low |
| Comfort | Good | Very high |
| Sound insulation | Good | Better |
| Weight | Lighter | Heavier |
| Price | € | €€€ |
| Application | Standard homes | BEN / low-energy / large façades |
Comparing glass options (comfort summer & safety)
| Feature | HR++ | Triple | Sun protection (combi) |
| Keeping heat out | Average | Good | Excellent |
| Daylight | High | High | Slightly lower |
| Sound insulation | Good | Better | Good |
| Security (layered) | Yes | Yes | Yes |
| Comfort summer | Average | Good | Very high |
| Best application | General | Energy-efficient | South/west facades |
Which choice suits you?
- Renovation or standard house → HR++
- New construction or low-energy housing → Triple
- Large windows on sunny side → Triple + solar protection
- Additional safety or children → Laminated (standard with Aluwdoors)
- Busy area → Additional soundproof glass
Advice: Our advisers will be happy to help you put together the right glazing for your situation.

| 19-05-2026 | |
| Reading time: 2 minutes | |
| Materials, glass and colour |




