Windows
ALT W72W Window
Up to 2 500 mm
Max sash height
Up to 1 600 mm
Max sash width
58 mm
Max infill unit thickness
Up to 150 kg
Max sash weight
1,05 W/m2*K
Thermal insulation, Uw (EN ISO 12567-1:2011)
PAS 24:2016 (class W)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class E1200 (1200 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class C5 (2000 Pa; 1/300)
Wind load resistance (EN 12211:2000, EN 12210:1999)
up to 49dB
Acoustic insulation (EN ISO 10140-2:2011, EN ISO 10140-4:2011)
ALT W72HS Hidden sash window
Up to 2 450 mm
Max sash height
Up to 1 600 mm
Max sash width
50 mm
Max infill unit thicknesss
Up to 150 kg
Max sash weight
>=1,05 W/m2*K
Thermal insulation, Uw (EN ISO 12567-1:2011)
PAS 24:2016 (class W)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class E1200 (1200 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class C5 (2000 Pa; 1/300)
Wind load resistance (EN 12211:2000, EN 12210:1999)
up to 49dB
Acoustic insulation (EN ISO 10140-2:2011, EN ISO 10140-4:2011)
ALT W72VS Ventilation sash
Up to 3 000 mm
Max sash height
180 and 280 mm
Vent width
ALT W62W Window
Up to 2 500 mm
Max sash height
Up to 1 600 mm
Max sash width
54 mm
Max infill unit thickness
Up to 150 kg
Max sash weight
1.3 W/m2*K
Thermal insulation, Uw (EN ISO 12567-1:2011)
PAS 24:2016 (class W)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class E1500 (1500 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class B5 (2000 Pa; 1/200)
Wind load resistance (EN 12211:2000, EN 12210:1999)
up to 36 dB
Acoustic insulation (EN ISO 10140-2:2011, EN ISO 10140-4:2011)
ALT W62HS Hidden sash window
Up to 2 500 mm
Max sash height
Up to 1 600 mm
Max sash width
54 mm
Max infill unit thickness
Up to 150 kg
Max sash weight
1,3 W/m2*K
Thermal insulation, Uw (EN ISO 12567-1:2011)
PAS 24:2016 (class W)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class E1500 (1500 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class B5 (2000 Pa; 1/200)
Wind load resistance (EN 12211:2000, EN 12210:1999)
up to 36 dB
Acoustic insulation (EN ISO 10140-2:2011, EN ISO 10140-4:2011)
ALT W62VS Ventilation sash
Up to 3 000 mm
Max sash height
180 and 280 mm
Sash width
ALT W73CW Casement window
Up to 2 200 mm
Max sash height
Up to 1 700 mm
Max sash width
48 mm
Max infill unit thickness
Up to 180 kg
Max sash weight
Uw>=1.4 W/m²·K
Thermal insulation, Uf (EN ISO 12567-1:2011)
PAS 24:2016 (class W)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
side hung - class 8A (450 Pa), top hung - class E1500 (1500 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
side hung - class C5 (2000 Pa; 1/300), top hung - class CE2400 (2400 Pa; 1/300)
Wind load resistance (EN 12211:2000, EN 12210:1999)
ALT W72CW Casement window
Up to 2 200 mm
Max sash height
Up to 2 200 mm
Max sash width
54 mm
Max infill unit thickness
Up to 180 kg
Max sash weight
Uf>=1,9 W/m2*K
Thermal insulation (EN ISO 12567-1:2011)
PAS 24:2016 (class W)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class E1500 (1500 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class CE2400 (2400 Pa;1/300)
Wind load resistance (EN 12211:2000, EN 12210:1999)
ALT W72R Renovation
Up to 2 500 mm
Max sash height
Up to 1 600 mm
Max sash width
58 mm
Max infill unit thickness
Up to 150 kg
Max sash weight
1,05 W/m2*K
Thermal insulation, Uw (EN ISO 12567-1:2011)
PAS 24:2016 (class W)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class E1200 (1200 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class C5 (2000 Pa; 1/300)
Wind load resistance (EN 12211:2000, EN 12210:1999)
up to 49dB
Acoustic insulation (EN ISO 10140-2:2011, EN ISO 10140-4:2011)
ALT W72 Receiptor
Up to 2 500 mm
Max sash height
Up to 1 600 mm
Max sash width
58 mm
Max infill unit thickness
Up to 150 kg
Max sash weight
1,05 W/m2*K
Thermal insulation, Uw (EN ISO 12567-1:2011)
PAS 24:2016 (class W)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class E1200 (1200 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class C5 (2000 Pa; 1/300)
Wind load resistance (EN 12211:2000, EN 12210:1999)
up to 49dB
Acoustic insulation (EN ISO 10140-2:2011, EN ISO 10140-4:2011)
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About BFRC rating
The BFRC is the UKs most widely used rating council for energy performance in windows and doors. The ‘rainbow’ labels are visible proof of invisible performance, showing our product has been independently verified by experts to perform as promised.