One of our most popular slates from the Commercial Range, SIGA 37 is a reasonably uniform second selection of our best-selling SIGA 39. An affordable W1 (≤ 0,6%) T1, S1 slate, it will require sorting on site, but provides a distinctly natural look to the roof. Aesthetically and technically well suited to new build and refurbishment projects in both the residential and commercial sectors.

Region Used:

Scotland, London, North West, North East, Yorkshire, East Midlands, West Midlands, East Anglia, South West, South East, Wales, Northern Ireland

Product Types:

New Build, Heritage, Self Build, Conversion/Refurbishment, Housing Developments


Villarmartin de Valdeorras, Orense, Spain


Blue Grey




5mm, 7mm

Sizes Available:

500 x 250mm, 400 x 250mm, 400 x 200mm

*Other sizes may be available to special order. Please contact us for details.


30 Years


Samples of SIGA 37 have been tested in accordance with and comply with, the relevant sections of EN12326-1:2014

  • Thermal cycling T 1
  • Exposure S02 S1
  • Water Absorption W1
  • 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.