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Re-roofing and building regulations

You need building regulations approval to carry out repairs on or if you re-cover more than 25 per cent of a roof

You must get approval even if the new roof covering is a like-for-like swap. This applies to both pitched and flat roofs.


The rules aim to improve:

  • roof insulation and energy efficiency
  • loading
  • fire resistance
  • resistance to moisture

You can go to the Planning Portal to find out more about the regulations on:

Other guidance on roofing work

You can download and read our guides about: