Modern uPVC
Windows / Doors

Efficient, durable, and low-maintenance solutions

Excellent Value for Money

A cost-effective solution that combines performance, durability, and low maintenance over the full lifecycle.

Multi-chamber profiles combined with modern locking systems provide reliable security and strong resistance against forced entry.

uPVC systems offer very good thermal insulation, helping to reduce energy consumption for cooling and heating in all climate zones.

The profile structure and glazing options provide noticeable reduction of outside noise, improving indoor comfort in urban and high-traffic areas.

uPVC is resistant to moisture, UV exposure, and corrosion, making it suitable for coastal regions and harsh weather conditions.

No painting or special treatment required. uPVC windows are easy to clean and available in a wide range of styles and finishes.

KF 734 S

Exterior:
PVC

Interior:
PVC

Sealing:
Central seal

Hardware system:
Tilt-and-turn
Visible hinge side

Thermal insulation:
Standard: 1.2 W/m²K
Optional: up to 0.75
W/m²K

Sound insulation:
Up to 47 dB

Airtightness:
Class 4

Watertightness:
Up to class 9A

Frame depth:
80 mm

Visible width:
117 mm

Maximum glass thickness:
Standard: 24 mm
Optional: up to 51 mm

Shapes:
Windows with arches and
angled edges possible

Colours:

White or foiled surfaces according to
KNEER-SÜDFENSTER colour chart

Burglary protection:

Standard: with 2 mushroom-head
locking pins & security striker plates
Optional: RC3 resistance