Roof Glazing

Using glass in the roof is a popular way of introducing light to central areas of a building.  In addition to the normal considerations of thermal and solar control, sloping glazing is overhead glazing and we need to choose glass that is safe.  If the glass forms part of an accessible roof area then it may need to be treated as a glass floor. 

The regulations allow the use of tempered glass overhead; however, if toughened glass is used as the lower pane then a safety glass must be used in the upper pane. 

When tempered glass breaks it breaks safe into small particles.  When it is overhead the particles can come down locked together forming a mass of glass that may cause injury.  To reduce the risk of injury we recommend that the thickness and height above floor level is limited to reduce the risk of injury.  For heights up to 5m above  floor level tempered can be considered if the other glass products cannot be used.  Between 5m and 13m above floor level restrict the tempered thickness to 6mm and 3m2 in one pane.  Over 13m above floor level tempered is not recommended.

• Pilkington Arctic Blue™
  
• Pilkington EverGreen™
  
• Pilkington Optifloat™ Tinted Glass
  
• Pilkington SuperGrey™
  

• Pilkington Activ™
  

• Pilkington Planar™