This tool has been designed primarily for specifiers who require National Building Specification clauses (NBS), for sections:

  • H60 'Plain roof tiling'
  • H61 'Fibre cement slates'
  • H65 'Single lap roof tiles'

The tool enables you to produce instant NBS clauses that meet the recommendations of British Standards and Codes of Practices for the Marley range of tiles, slates, fittings and accessories.