H.O. SCHLÜTER CLASSIC
Our standard window system fulfills all the requirements of a modern window and combines excellent thermal and sound insulation properties.
Using slender profile sightlines and a narrow installation depth, it can be easy used in new building and renovation projects.
The thermal insulation U-value on a standard window is between 0.21 - 0.23 Btu/hr-sq ft-°F but values as low as 0.13 Btu/hr-sq ft-°F are reached if the frame and sash are filled with ProEnergyTec insulation foam. It can take modern triple glazing or special functional glazing up to 50 mm thick and has sound insulation up to 46 dB.
Different U-values are possible depending on the frame/sash combination, glass, and steel insert. Contact us for more details.
Features and Benefits
Thermal insulation U-value on standard window of 0.21 - 0.23 Btu/hr-sq ft-°F
Steel-reinforced chambers for effective protection against unwanted intruders.
Excellent sound reduction properties.
Easy care and maintenance thanks to robust and weather-resistant surfaces.
Made from high-quality uPVC - Will not rot, corrode, fade, discolor or deform when exposed to moisture or damp conditions.
Available in Parallel or Tilt Turn opening for maximum ventilation and security.
Color Options and Finishes
All of our windows are covered with a high-performance laminate film, especially designed and formulated for harsh radiation, freezing temperatures, and tropical conditions found in North America.
This high-performance film retains its beauty throughout its service life and is highly ultraviolet, pollution, and salt-air resistant. The material’s low surface tension makes it inherently dirt-repellent and therefore easy to clean, even graffiti can easily be removed with a special cleaner. Because of this excellent performance, all of our surface finishes come with a North American Warranty for up to 20 years!
Min. U-Value (1230 x 1480 mm window)
Fire Resistance (ASTM E84)
Air Leakage Resistance (ASTM E283-04)
Water Penetration Resistance (ASTM E547)
Performance Class (NAFS 08-11)
Performance Grade (NAFS 08-11)
Burglar Resistance (ASTM F588)
Sound Transmission Class (ASTM E413-16)
OITC (ASTM E1332-16)
Volatile Organic Compounds (AgBB)
0.13 Btu/hr-sq ft-°F
Pass - PG 100
LC, CW, AW
Grade 20 / 40
Minimum Frame Length
Maximum Frame Length
Minimum Glass Thickness
Maximum Glass Thickness
Minimum Sash Width
Maximum Sash Width
Minimum Divider Width
Minimum Sash + Frame Sightline
Sash + Floating Mullion Sightline