Glass is amongst the hardest of common construction materials currently being used.
However, even though glass is very hard it is susceptible to damage from a variety of sources and requires care and regular maintenance to retain the original appearance. Since the primary purpose of glass is to be viewed through, damage to the glass can easily detract from its original condition and clarity of vision. Great care is taken to prevent glass damage during manufacture, processing, storage and delivery to site.
It is therefore worthwhile taking precautions to prevent possible contamination and damage to glass during installation and through the remaining phases of construction. Preventative measures are often faster and more effective than subsequent ordinary cleaning techniques available.
Handling and storage
Delivery, handling and site storage methods must be agreed for each site. Upon delivery of the glass check marks and labels on the packing or glass to ensure compliance with the specification. Edges and corners of glass are particularly vulnerable to damage during handling, storage and installation. Inspect the cut edges of the glass for excessive flaws such as large shells that may compromise the strength and performance of the glass. Check all surfaces for any signs of damage. If in doubt seek advice from the manufacturer.
Glass should not be stored or stacked horizontally. Store panels on edge at an angle of 3° to 6° from the vertical, with sufficient lateral support to prevent bowing, in a clean dry, ventilated place, avoiding direct sunshine and other sources of heat. Factory applied protection such as cork pads or shrink-wrapping should not be removed until the glass is ready for installation. When the packaging has been removed it is advisable to cover the remaining glass to prevent ingress of dust and grit that may cause subsequent scratching.
If any moisture or condensation is apparent between the panes of stacked glass, separate immediately and dry thoroughly, otherwise permanent staining may result. If water is allowed to remain in contact with the glass for an extended period it can form a concentrated alkaline solution and will attack the glass surface causing permanent damage and in extreme cases even “welding” the sheets together. Carefully inspect all glass before installation.