KBE 88: a reliable profile for a modern home

KBE 88: a reliable profile for a modern home

The KBE 88 profile is a modern PVC window system with an 88 mm installation depth designed for energy-efficient and comfortable homes. It delivers improved thermal and acoustic insulation, supports a range of glazing options, and provides strong resistance to weathering. This article covers the main features of KBE 88, its benefits, practical selection tips, and installation recommendations.

Technical features and construction

• Installation depth: 88 mm — allows for thicker insulating glass units and enhanced chamber architecture.
• Chamber design: typically 7 chambers in the frame and sash, increasing thermal performance.
• Glazing compatibility: supports double- and triple-glazed units, low-E coatings and inert gas fills (argon).
• Reinforcement: steel or optimized reinforcements for structural stability.
• Seals: dual or triple gasket systems made from durable elastomers for reliable air and water tightness.

Thermal and acoustic performance

KBE 88 is engineered to minimize heat loss. The larger profile depth means installers can use wider, more efficient glazing units, reducing heating costs. The multi-chamber design also helps reduce external noise transmission when paired with appropriate IGUs (insulating glass units), making it suitable for urban environments and busy streets.

Safety and durability

High-quality PVC compounds make the profile resistant to deformation and fading over time. The system allows for multi-point locking mechanisms and reinforced sections for increased burglar resistance. KBE 88 is compatible with a wide range of hardware — tilt-and-turn, casement, fixed and combination window types.

Design and finishes

KBE 88 is available in classic white and a broad palette of laminated finishes that mimic wood or solid colors. Slim sightlines and contemporary frame shapes increase daylight penetration and visually enlarge the opening, which is important for modern interior design.

Installation and compatibility

Correct installation is essential to achieving the advertised thermal and acoustic performance. Key recommendations:

• Maintain correct installation gaps and perform professional thermal and moisture sealing;
• Install appropriate sills and drip edges;
• Use certified hardware and glazing units of the correct thickness;
• Adjust sashes after installation and check all seals.

KBE 88 pairs well with energy-efficient building envelopes and is used in high-performance and passive house projects when combined with correct glazing and installation techniques.

Maintenance and service

Maintenance is straightforward: wash frames with warm water and mild detergent, lubricate hardware once or twice a year, check seals and replace them if needed. Avoid abrasive cleaners and harsh solvents to preserve the surface and seals.

When to choose KBE 88

• You want to reduce heating costs with improved thermal protection.
• You need higher sound insulation in a city or near busy roads.
• You look for a durable system with many design options and good long-term performance.

Drawbacks and limitations

• Higher cost compared to 60–70 mm basic profiles.
• To realize full benefits, careful selection of glazing and professional installation are necessary.

Frequently Asked Questions

Q: Is KBE 88 suitable for cold climates?
A: Yes — its deep frame and multi-chamber design significantly improve thermal insulation, especially when combined with triple glazing and argon filling.

Q: Can blinds or roller shades be installed with KBE 88?
A: Yes — the profile is compatible with most internal and external shading solutions; confirm mounting dimensions with your supplier.

Q: How demanding is maintenance?
A: Low — routine cleaning and periodic lubrication of hardware are sufficient for decades of reliable service.

Q: Do large windows need special reinforcement?
A: For large spans, reinforced profiles are recommended to ensure stability and safety.

Q: What glazing provides the best noise reduction?
A: Using different glass thicknesses and a wide gap (44–48 mm) with acoustic interlayers yields the best sound insulation results.

KBE 88 is a strong choice for homeowners seeking energy savings, improved comfort, and modern aesthetics. With proper design and high-quality installation it becomes a long-lasting, efficient element of your home.