6.9 Curtain walling and cladding

6.9.13 Glazing, gaskets and sealants

Glazing shall be carried out in accordance with relevant standards. Materials used for glazing, gaskets and sealants shall provide satisfactory performance.

Glazing, including insulating glass units, should be in accordance with Chapter 6.7 ‘Doors, windows and glazing’. Extruded rubber gaskets should comply with BS 4255 or assessed in accordance with Technical Requirement R3.

Sealant and tapes should be selected and applied in accordance with:

  • BS 6213
  • BS EN ISO 11600.

Sealant used in locations where differential movement may be expected, eg interfaces between the façade and the structure, should be one of the following:

  • one or two part polysulphide
  • one part silicone
  • one or two part polyurethane
  • materials assessed in accordance with Technical Requirement R3.

Last updated: 2nd January 2024

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