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Sandtoft BritLock Double Slate

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The BritLock Double Slate from Sandtoft is made from 80% recycled natural slate, sourced from UK quarries and simulates the look of natural slate. The single-lap design and covering capacity of 11.7m2 offers savings through faster, easier fixing, reduced roof loadings and fewer tiles required per m2.

BritLock can be laid at pitches as low as 17.5 degrees, leading to its specification on some major projects as diverse as churches, hotels, schools, leisure centres, apartment blocks and townhouses, and traditional residential developments.

Features & Benefits: Sandtoft BritLock Double Slate

  • A quality interlocking slate with an authentic slate appearance
  • Rated 'A' under the Building Research Establishment's (BRE) Green Guide to Specification
  • Available in 2 colours
  • Sustainable
  • Made from 80% recycled natural slate

Unlike conventional slate, BritLock does not have to be graded and holed on-site, and thanks to its ingenious interlocking design, there is no need to install the tile double-lapped, thus offering significant savings in material and time.

Product Specification

  • Length: 360mm
  • Width: 340mm
  • Minimum Pitch: 17.5 Degrees
  • Maximum Pitch: 90 Degrees
  • Colour: Graphite or Lakeland Green
  • Material: Recycled Slate

Standards & Certification

  • BritLock and BritSlates are certified by the BBA.
  • Agrement Certificate no. 97/3351 applies manufactured under quality management system BS EN ISO 9001 and meet the requirements of BS 5534.


Length 360mm Width 340mm


Colour Graphite
Lakeland Green
Material Recycled Slate Minimum Pitch 17.5 Degrees Maximum Pitch 90 Degrees


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Sandtoft BritLock Double Slate

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