Sliding & Folding Doors
ALT SL130 Lift and Slide doors
up to 3 385 mm
Max. sash height
up to 3 285 mm
Max. sash width
up to 420 kg
Max. sash weight
42 mm
Max. infill unit thickness
Ud >= 1.6 W/(m²K)
Thermal insulation in accordance with EN ISO 10077-1:2007, EN ISO 10077-2:2012
PAS 24:2016 (class D)
Burglar resistance
50 mm (Slim Interlock), 100 mm
Interlock options
Е900 (900 Pa)
Water tightness class in accordance with EN 1027:2000, EN 12208:1999
class 4 (600 Pa)
Air tightness in accordance with EN 1026:2000, EN 12207:1999
class C5 (2000 Pa)
Wind load resistance in accordance with EN 12211:2000, EN 12210:1999
class 5
Impact resistance in accordance with EN 13049:2003
up to 36 dB
Acoustic performance in accordance with 10140–2:2011, EN ISO 10140–4:2011
concealed hardware kit, Comfort Close, Gas Lift Handle
Hardware options
ALT SL160 Lift-and-Slide Patio
Up to 3 385 mm
Max leaf height
Up to 3 235 mm
Max leaf width
54 mm
Max infill unit thickness
Up to 440 kg
Max leaf weight
Ud>=1,3 W/m2*K
Thermal insulation (EN ISO 10077-1:2007, EN ISO 10077-2:2012)
PAS 24:2016 (class D)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class E900 (900 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class C5 (2000 Pa; 1/300)
Wind load resistance (EN 12211:2000, EN 12210:1999)
class 5
Impact resistance (EN 13049:2003)
up to 36dB
Acoustic insulation
ALT BF73 Bi-folding Doors
Up to 3 000 mm
Max leaf height
Up to 1 200 mm
Max leaf width
44 mm
Max infill unit thickness
Up to 120 kg
Max leaf weight
1,2 W/m2*K (DSER of 'B' rating)
Triple glazed door
1,6 W/m2*K (DSER of 'C' rating)
Double glazed door
PAS 24:2016 (class D)
Burglar resistance
class 4 (600 Pa)
Air permeability (EN 1026:2000, EN12207:1999)
class 9A (600 Pa)
Water tightness (EN 1027:2000, EN 12208:1999)
class A3 (1200; 1/150)
Wind load resistance (EN 12211:2000, EN 12210:1999)
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.