Signs of Damage
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Signs of Damage

You should regularly check your church windows for damage. Look for the following signs:

  • water droplets on the glass
  • a greenish layer of algae growing on the glass
  • pitting and discolouration of the glass surface
  • loss of colour and flaking off from painted areas of glass
  • loose or rattling glass
  • any bowing or bulging of the glass
  • rusting of the window's iron framework (known as the ferramenta)
  • cracks or white, powdery deposits on the lead dividers (known as the leading)
  • water staining to the stone, mortar or brickwork around the window
  • moss, algae or mould growing around the window inside or outside
  • damaged and crumbling stone, mortar or brickwork around the window