SIGA 37 Natural Slate

As low as
From  £1.06  inc VAT
From  £0.88  ex VAT
In stock
As low as
From  £1.06  inc VAT
From  £0.88  ex VAT
Product Description
SIGA 37 is a reasonably uniform second selection of best-selling SIGA 39. An affordable slate, it will require sorting on site, but provides a distinctly natural look to roof. Aesthetically and technically well suited to new build and refurbishment projects in both residential and commercial sectors. SIGA 37 Natural Slate, available for delivery across the UK. Buy online now.

Currently items are not orderable due to Covid-19. However at this difficult time, our roofing experts are available for technical and product assistance if you have roofing questions or an urgent issue – please e-mail us at [email protected].

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The SIGA 37 is a reasonably uniform second selection of the best-selling SIGA 39. An affordable T1S1W1 (≤0.6%) 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.


Key features:

Source: Villarmartin de Valdeorras, Orense, Spain

Colour:Blue Grey

Thickness: 5mm.

Sizes Available: 400 x 250mm, 400 x 375mm, 500 x 250mm, 500 x 375mm.

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

Representative Performance: Thermal cycling T1, Exposure S02 S1, Water Absorption W(≤0.6%)

Meets requirements of NHBC.

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.

Additional product information:

Declaration of performance available   here.  

Product Data Sheet available here.

Additional product information is available here.

Recommended nail size is 38mm x 3.35mm (in Copper or Aluminium).


Orders and Delivery

Delivery Information

Roof Stores offer free delivery on orders over £250.00 ex VAT, below this, a £15.00 ex VAT delivery charge applies. 

We hold the majority of our products in stock however due to our extensive product range, a small range of products are sent directly from the manufacturers, these products may incur different delivery charges.

  • Delivery costs may be subject to change should stock not be available locally or when stock is offered in made to measure
  • Due to the recent Nationwide concrete and clay products shortage some products may carry a lead time, please contact us to check stock in your area before placing an order
  • Orders placed before midday Mon to Fri (excluding bank holidays) will be processed same day. Orders received after midday will be processed the following working day, at which point our 2-3 working day delivery lead-time begins
  • We aim to deliver orders to UK Mainland in 2-3 working days and will contact you via email or telephone to confirm an exact delivery date once your order has been processed
  • We are unable to deliver on our own vehicles to the Scottish Highlands & Islands but are happy to deliver to a shipping forwarding company on your behalf
  • Our delivery vehicles include articulated lorries, please advise us in the comments section when placing your order if there are potential access restrictions to the delivery address(es)
  • A signature will be required on delivery of goods. If this is an issue please let us know in advance
Returns and Refunds

Returns and Refunds

In the unlikely event that you need to return an item, please contact our team within 14 days of accepting delivery of the item. We cannot accept returns on special orders, if you are unsure if your item is a special order, please contact us prior to placing the order.

Please call us on 0330 123 1885 or email us at [email protected] if you have any delivery or stock questions or queries, a member of our team will be happy to help

Free delivery on orders over £250! Free delivery on orders over £250 Terms and conditions apply

As seen on Channel 4's Grand Designs,
Eco Slate is a unique 100% recycled and
recyclable slate, able to perform on pitches as low as 10o.  

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