28/09/25

How PVC Windows Withstand Wind Loads

Basic Protection Mechanisms

Structural Strength is ensured by a complex of technical solutions that allow windows to withstand significant wind loads.

Design Features

Reinforcing Frame serves as the foundation of window strength. A metal insert 1.5-2 mm thick is placed inside the profile to take the main load.

Profile Thickness plays a crucial role. Increased thickness of external walls and presence of stiffeners provide additional resistance to deformation.

Technical Solutions

Size Optimization helps reduce window sail area. Large structures are divided into sections using mullions or multiple sashes.

Glazing Unit Reinforcement includes:

• Use of thick glass
• Application of reinforcing film
• Proper calculation of glass thickness

Installation and Mounting

Fixing System is critical:

• Use of special fasteners
• Reinforced anchoring in the opening
• Proper installation technology

Additional Protection Measures

Wind Protection Elements may include:

• Shutters
• Roller blinds
• Special protective structures

Influencing Factors

Installation Height significantly affects load:

• Up to 8 meters — minimal load class
• Above 100 meters — maximum load class

Geographical Location determines design parameters:

• Wind frequency in the region
• Cardinal direction
• Local development features

Consequences of Insufficient Protection

If resistance to wind is insufficient, the following may occur:

• De-pressurization of the structure
• Moisture penetration
• Reduced energy efficiency
• Mechanical damage

Modern PVC windows are capable of effectively resisting strong winds thanks to their thoughtful design and quality materials. Proper calculation of all parameters during design and installation ensures reliable protection against wind loads throughout the entire service life.