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What is a setting block?

  • Blocks made of neoprene, EPDM, silicone, polypropylene or other elastomeric material, used to support the bottom edge of a pane of glass when glazing it into a frame.

Principle functions of settings blocks:

  • Provide a cushion to support a glass pane’s dead load
  • Provide the proper glass bite at the cill
  • Prevent glass edges from touching the frame thereby preventing damage to the glass
  • Prevent glass edges from being immersed in water and facilitate drainage and drying

Important notes when installing setting blocks:

  • Glass-to-metal contact must be avoided at all times by using setting and location blocks having a hardness of 50⁰ to 90⁰ shore A durometer.
  • Only use blocks made of neoprene, EPDM, silicone, polypropylene or other elastomeric material.
  • Setting blocks should have a minimum thickness of 3mm and be at least 27mm in length per square metre of
    glass area.
  • When glazing laminated glass and/or sealed insulated glass units, drainage should be provided to prevent the glass edge being submerged.
  • Two or more 7mm diameter holes or 5mm x 9mm slotted holes, or larger, should be equally spaced in the c i l l s e c tion of s a sh or fr ame to a l low for ventilation/drainage of the cill section.

 

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