Glass options for aluminium window frames

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.