See us at 21-24 November 2026 · Eurasia Window Door Fair, TÜYAP Istanbul — Hall 4 / 414AEurasia Window Door, 21-24 Nov 15-19 February 2027 · R+T Stuttgart — Hall 3A / 72R+T Stuttgart, 15-19 Feb Get an invitation →
Opening Systems Comparison
LineaRossa

Opening Systems Comparison

Two non-insulated series for interiors and economical work; insulated LR-5100 and Grande GLR-53 for energy performance on the facade.

Feature LR-4100 Uninsulated Opening System LR-4100 Uninsulated Opening System Is the simple answer for doors and windows that need no thermal break. View LR-4500 Uninsulated Opening System LR-4500 Uninsulated Opening System Gives a large glass surface in an economical casement system. View LR-5100 Insulated Opening System LR-5100 Insulated Opening System Delivers energy-efficient windows and doors with a 24 mm thermal break. View GLR-53 Insulated Opening System GLR-53 Insulated Opening System Comes close to passive-house level at Uw 0.90. View
Class
Series Standard Standard Standard Grande
Thermal insulation None None 24 mm thermal break 33 mm thermal break
Thermal transmittance — — — Uw 0.90 W/m²K
Profile
Frame dimensions 45 / 50 mm 55 / 63,7 mm 72 mm 76 mm
Leaf dimensions 52 / 64,1 mm 62 / 74,3 mm 72 mm (minimum height 90 mm) 87 mm (leaf and frame together, minimum 113 mm)
Profile wall thickness 1,4–1,6 mm 1,6–2,0 mm — —
Sealing Three-stage gasket Three-stage gasket — Advanced sealing
Glass and capacity
Glass thickness Up to 32 mm Up to 40 mm 16–42 mm 40–62 mm
Load capacity 80 kg of glass 130 kg of glass 120–200 kg leaf 120–200 kg leaf
Where Doors and windows with no need for a thermal break Economical casement with a large glass surface Energy-efficient windows and doors Facades close to passive-house level