When choosing aluminium windows, design is only half the story. At GREFET, we focus on how windows perform in real-world conditions. Performance parameters define how well a window system handles air, water, heat, sound, and structural loads over time. Let’s break down the key performance parameters that truly matter.
1. Air Tightness: Keeping the Outside Where It Belongs
Air leakage directly impacts indoor comfort and energy efficiency. Poorly designed windows allow unwanted drafts, dust, and pollution inside.
At GREFET, we ensure:
- Precision-engineered profiles for minimal gaps
- Multi-point locking systems for uniform sealing
- High-quality EPDM gaskets for long-term durability
Better air tightness means better climate control and reduced energy bills.
2. Water Tightness: Protection Against Heavy Rain
Water leakage is a common issue in conventional windows, especially during Indian monsoons.
Key factors that improve water tightness:
- Advanced drainage systems within the frame
- Multi-layer sealing with gaskets and sealants
- Pressure-equalized design to resist wind-driven rain
Our systems are tested to withstand high rainfall conditions without seepage.
3. Wind Load Resistance: Strength Under Pressure
Wind pressure varies based on building height and location. Windows must withstand these forces without bending or failing.
GREFET systems offer:
- Profiles designed for specific span and load conditions
- Reinforced sections for high-rise applications
- Tested performance under simulated wind pressures
This ensures structural stability even in extreme weather.
4. Thermal Insulation: Controlling Heat Transfer
Aluminium is a conductor, but system design makes all the difference.
We improve thermal performance through:
- Thermal insulation
- Double Glazed Units (DGU) for insulation
- Optimized glazing pockets to reduce heat transfer
This helps maintain indoor temperatures and reduces reliance on air conditioning.
5. Acoustic Performance: A Quieter Indoor Environment
Noise pollution is a growing concern in urban areas. Window systems play a major role in sound insulation.
Our approach includes:
- Airtight sealing to block sound leaks
- Double or laminated glazing options
- Engineered profile design to reduce vibration transfer
The result is a noticeable reduction in external noise.
6. Structural Integrity & Durability
Performance isn’t just about day one. It’s about consistency over years of use.
GREFET ensures durability through:
- Corrosion-resistant aluminium alloys
- High-performance surface finishes
- Hardware tested for repeated usage cycles
This guarantees long-term reliability with minimal maintenance.
7. Ease of Operation: Smooth Functionality
A high-performance window should also feel effortless to use.
We focus on:
- Precision rollers and hinges
- Balanced sash weight distribution
- Consistent alignment over time
This ensures smooth sliding or opening without wear and tear.
Conclusion: Performance Defines Value
At GREFET, we don’t treat windows as just design elements. We engineer them as performance systems. Each parameter — air, water, wind, thermal, acoustic — works together to deliver a complete solution. Choosing the right aluminium window isn’t about what looks good today. It’s about what performs consistently for years.
