SIGA 13s is a smooth, dark blue grey Commercial slate. Sourced from amongst the finest slate seams available in Spain, it combines excellent durability with outstanding workability. SIGA 13s is commonly used in the North of England and the East Midlands, and is popular with housebuilders and self builders alike. The texture and appearance is typical of a La Bana Hebra slate, with a fine vertical grain.

Region Used:

North West, North East, East Midlands

Product Types:

New Build, Self Build, Conversion/Refurbishment, National Parks, Housing Developments


La Bana Region, Spain


Dark Blue Grey





Sizes Available:

500 x 250mm*Other sizes may be available to special order. Please contact us for details.


30 Years

Product Specifications


Samples have been tested in accordance with, and comply with, the relevant sections of EN12326-1:2014.

  • Thermal Cycling T1
  • Exposure S02 S1
  • Water Absorption W1 (≤ 0,6%)
  • Meets the requirements of NHBC Standards

Additional Information

SIGA warranties are backed by SIG Roofing, the UK’s largest distributor of roofing materials. The performance of the slate is warranted for the stated period, subject to installation in accordance with prevailing British Standards and good roofing practice.

Registered Office: SIG Trading Limited, Adsetts House, 16 Europa View, Sheffield Business Park, Sheffield, S9 1XH. Registered in England No. 01451007 VAT No. GB 487 01733