Glass options for aluminium window frames

HR++ glass – the reliable standard

✔ Good insulation
✔ Affordable
✔ Widely applicable
✔ Lighter weight
✖ Less insulating than triple glazing for large patio doors

HR+++ (triple) glazing – maximum insulation

✔ Best insulation value
✔ High living comfort
✔ Fewer cold draughts
✔ Better sound insulation
✖ Heavier and higher investment

Laminated safety glass – standard on the Aluwdoors

✔ Extra burglary-resistant
✔ Safe if broken
✔ Noise reduction
✔ Suitable for RC2/RC3
✔ Fitted as standard to all our window frames

Solar control glass – comfort in the summer

✔ Less heating up of the home
✔ Less need for air conditioning or blinds
✔ Protects interior against fading
✔ Ideal for large south-facing facades
✖ Slightly lower light transmittance

Comparison of HR++ and HR+++

Property	HR++	HR+++ (triple)
Ug insulation value	± 1.1	± 0.6 (better)
Heat loss winter	Low	Very low
Comfort	Good	Very high
Soundproofing	Good	Better
Weight	Lights	Heavier
Price	€	€€€
Application	Standard houses	Nearly Zero-Energy / energy-efficient / large glass facades

Comparison of glass options (summer comfort & safety)

Property	HR++	Triple	Solar shading (combi)
Keep the heat out	On average	Good	Excellent
Daylight	High	High	A bit lower
Soundproofing	Good	Better	Good
Security (layered)	Yes	Yes	Yes
Summer comfort	On average	Good	Very high
Best application	General	Energy-efficient	South/west facades

Which choice suits you?

• Renovation or standard home → HR++ glazing
• New-build or low-energy home → Triple glazing
• Large glass fronts on the sunny side → Triple glazing + solar control glass
• Extra safety for children → Layered (standard on Aluwdoors)
• Busy environment → Extra soundproof glazing

Advice: Our advisors are happy to help you put together the right glazing for your situation.