Causes of Glass-to-Glass Contact in Frameless Shower Screens Over Time.

Why Contact Can Occur Over Time

Although uncommon, glass-to-glass contact can develop due to a combination of small changes rather than a single failure. These may include:

• Minor building movement

  All structures naturally move over time due to settlement, temperature changes, and material behaviour. Even very small movements can alter clearances in precision glass installations.

• Normal operational wear

  Repeated opening and closing of the door can, over time, introduce slight changes in alignment.

• Hinge settling or glass movement within hinges

  Frameless doors are secured using mechanical clamping hinges. Over time, and with regular use, there can be very slight movement of the glass within the hinge assembly or minor settling of components.

Individually these changes are minimal, but combined, they can reduce the original clearances and lead to light contact or rubbing between the door and inline panel.

Typical Behaviour

At installation:

• The door is aligned and operates freely
• Clearances between glass panels are set within specification

After a period of use:

• The door may begin to lightly touch or rub the adjacent panel
• Operation may feel slightly tighter or less consistent

This type of change generally develops gradually rather than suddenly.

Nature of the Issue

Where this condition arises over time, it is typically considered:

• A result of normal building and product movement
• A function of long-term use and settling of components
• Not indicative of defective materials or workmanship

Frameless systems, by design, have fine tolerances and do not incorporate flexible framing to absorb these minor changes.

Rectification

In most cases, the issue can be addressed through a straightforward service adjustment, such as:

• Hinge adjustment and realignment
• Resetting clearances within allowable tolerances

Where movement or change exceeds the available adjustment range, further rectification may be required. This can include:

• Reworking or resizing glass components to suit the adjusted opening

This is generally only necessary in less common situations where cumulative movement has altered the original geometry beyond what can be corrected through adjustment alone.

Service vs Warranty

Adjustments or modifications required due to movement, settling, or long-term use are considered maintenance/service items rather than a product fault.

Accordingly:

• These works are typically carried out as a service call
• They do not fall under warranty for defective materials or workmanship

Summary

• Glass-to-glass contact developing over time is not common, but can occur
• It is usually caused by minor cumulative changes, not a single defect
• Frameless systems are sensitive to small shifts in alignment
• The issue is generally easily rectified through adjustment
• In less common cases, further modification (including glass resizing) may be required
• Such works are considered routine service rather than warranty