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This site is filled with demo data: texts, photos, projects and prices are examples. Photo credits

ALT W72

Thermally broken window system: sashes up to 1600 × 2500 mm and 150 kg, infills up to 58 mm.

Stepped corner of a glass facade with white horizontal bands

Technical data

Main parameters
ParameterValue
Maximum infill thickness58 mm
Thermal breakYes
Maximum sash width1,600 mm
Maximum sash height2,500 mm
Maximum sash weight150 kg
Sound insulation, Rw41 dB
Water tightness classE1200
Performance
ParameterValue
Air permeabilityclass 4 (600 Pa), EN 12207
Wind load resistanceCE2400 (2400 Pa; 1/300), EN 12210
Burglar resistancePAS 24:2016 (class W)
Thermal insulation
ParameterValue
Uw (EN ISO 12567-1)0.84 W/(m²·K)
Demo data
ParameterValue
Parameter sources
Data statusDEMO: parameters taken from the manufacturer's public page (see sources); prices are TEST.

About the system

ALT W72 is a thermally broken window system for residential, office and commercial buildings with high energy-efficiency requirements, combinable with the same maker's door, sliding and façade systems.

We will configure it for your project

Send us the sizes or drawings — a manager will configure the system, glazing and colour and prepare a price estimate.