Fireplaces, chimneys and flues


Flashings and trays shall be capable of adequately resisting the entry of moisture into the building.

Suitable materials for flashings and trays include:

  • milled sheet lead (minimum code 4) to BS EN 12588
  • „zinc alloy complying to BS EN 988 and 0.6mm thick
  • proprietary materials assessed in accordance with Technical Requirement R3.