You are viewing content for United Kingdom.

Choose a country to see content for your location. Changing region will navigate you to the homepage.

NBS Source
I'm a manufacturer
Compare variants

Natural Slate SIGA 31S

Verified by manufacturer 5 days ago

250 x 400 mm - 10748628

SIGA Natural Slate Variant:
Product certifications:
  • UK Conformity Assessed (UKCA)

    UK Conformity Assessed (UKCA)

    Certificate type

SIGA 31S is a textured, blue/ black slate, sourced from Spain.

Jump to:
Request BIM
01480 302500 Website

Application

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

Description

SIGA 31S is a textured, blue/black slate, sourced from Spain. Worked from a different seam to the SIGA 67ATG, the SIGA 31S has a slightly smoother finish.

Part of the SIGA Commercial Range

Region Used: National.

Product Application: Heritage, Self Build, Conversion/Refurbishment, Housing Developments.

Source: North West Spain.

Colour: Blue Black.

Texture: Textured.

Warranty: 75 Year Warranty, T&C’s apply. Must be registered for within 4 weeks of installation.

Features and benefits:

  • Full technical support and guidance is available.
  • Meets the requirements of NHBC Standards.
  • Conform to BS EN 12326-1:2014 – T1/S1/W1.

General information

Color

Blue

Black

Finish

Textured

Material

Slate

Shape

Rectangle

Length

400 mm

500 mm

Width

250 mm

375 mm

Height

5 mm

Warranty description

75 year

Guidance for specification option:

T&C’s apply. Must be registered for within 4 weeks of installation.

Uniclass

Pr_25_93_72_56 Natural slatesPrimary

CAWS

H62/10 Vertical slating

H62/120 Vertical slating

H62/3 Roof slating

H62/105 Roof slating

SKU Code

10748628

Specification data - Natural slates

Classification data

Slate type

-

Source

Spanish.

Colour

Blue black.

Slate size

-

Length (minimum)

400 mm.

Width (minimum)

250 mm.

Standards

-

Product specification

To BS EN 12326-1.

Methods of test

To BS EN 12326-2.

Properties

-

Type

Normal.

Dimensional tolerances

Deviations from declared length, width, edge straightness, rectangularity, and flatness are not to exceed values specified in BS EN 12326-1, clause 5.12.

Nominal thickness and individual thickness variation

5 mm +/-35%.

Characteristic modulus of rupture (Transverse)

39 N/mm².

Characteristic modulus of rupture (Longitudinal)

39 N/mm².

Water absorption

Code W1.

Freeze-thaw resistance

No test required.

Thermal cycle test

Code T1.

Carbonate content

Less than 20%.

Sulfur dioxide exposure test

Code S1.

Non-carbonate carbon content (maximum)

0.5%.

Reaction to fire

Class A1 (EC decision 96/ 603/ EC as amended).

Sustainability data

Contains Red List materials

No

Country of material origin

Spain

Country of product manufacture

Spain

Material

Slate

Recyclability

Undamaged slates are salvaged and reused.

Product certifications

UK Conformity Assessed (UKCA)

Declaration of Performance - Natural Slate SIGA 67ATG & 31S

Literature

SIGA 31S PDS Sept 2025 V2

SIGA 31S PDS Sept 2025 V2

SIG Roofing Natural Slate Guide

SIG Roofing Natural Slate Guide

SIGA Slate standard details combined PDF's

SIGA Slate standard details combined PDF's

Similar products from SIGA Natural Slate

Natural Slate Galiza Graphite

Natural Slate Galiza Graphite

Natural Slate Galiza Grey/Green

Natural Slate Galiza Grey/Green

Natural Slate Gallegas by CUPA 35 Heavy - Spanish natural roof slate

Natural Slate Gallegas by CUPA 35 Heavy - Spanish natural roof slate

Natural Slate Gallegas by CUPA 37

Natural Slate Gallegas by CUPA 37

Natural Slate GALLEGAS by CUPA 39

Natural Slate GALLEGAS by CUPA 39

Natural Slate Gallegas by CUPA 65

Natural Slate Gallegas by CUPA 65

Natural Slate SIGA 112S

Natural Slate SIGA 112S

Natural Slate SIGA 120

Natural Slate SIGA 120

Natural Slate SIGA 13S

Natural Slate SIGA 13S

Natural Slate SIGA 140

Natural Slate SIGA 140