Why Choose SSQ Slate for Listed Building Roofing?

SSQ provides heritage-grade natural slate solutions specifically engineered for listed buildings, combining historical authenticity with modern performance standards.

Our Del Carmen and Riverstone slates meet BS EN 12326 S1 certification requirements while delivering 150+ year lifespans—critical for preserving architectural heritage under stringent conservation regulations

The Hallmark of Listed Building Roofing

Unlike mass-market providers who source from multiple quarries, SSQ maintains strict control over our exclusive quarries in Spain and Argentina. Every slate we supply can be traced to its exact source, ensuring consistent quality and appearance that discriminating homeowners demand.

A slate roof equipped with solar panels, highlighting eco-friendly energy generation.

Heritage Compliance and Regulatory Expertise

Meeting Conservation Standards

All SSQ slates comply with BS 5534 and BS 8000-6 workmanship standards for traditional roofing, essential for maintaining listed building status. Our Technical Department collaborates with conservation officers to ensure:

  • Material authenticity: Del Carmen slate’s deep blue-black hue matches Victorian-era Welsh slates, while Riverstone phyllite replicates Georgian-era textures.
  • Structural integrity: 68.20 MPa longitudinal flexural strength exceeds the 65 MPa threshold for heritage-grade slate, verified through 40 years of UK installations.
  • Regulatory alignment: RIBA-approved CPD training covers Listed Building Consent processes and Section 106 agreement compliance.
  • Contact us

    Technical Specifications for Heritage Roofs

    SSQ Slate vs Traditional Alternatives

    Metric SSQ Slate Reclaimed Welsh Slate Concrete Tiles
    Lifespan (years) 100–150+ 80–120 30–40
    Maintenance Cost (per m²/year) ~£0.18 ~£0.50 ~£1.20
    Water Absorption (%) ≤ 0.3% ~0.4–0.5% 1.5–2.0%
    Fire Rating (Euroclass) A1 A1 A2
    Carbon Footprint (kg CO₂/m²) ~0.03 ~0.04 ~0.19
    Contact us
    Del Carmen quarry

    Material Advantages for Historic Structures

    Del Carmen Heritage Slate

    Backed by historical quarrying records dating to the 19th century, Del Carmen, one of our premium spanish slate has been proven in traditional installations for over 100 years.:

  • Aesthetic precision: Del Carmen’s hand-split finish aligns closely with the texture of 19th-century Welsh slates, offering high visual authenticity for conservation work.
  • Weather resilience: Withstands 2,500 Pa wind loads (23% above BS 5534) and -20°C freeze-thaw cycles without delamination.
  • Oxidation resistance: T1 thermal cycling classification eliminates iron-sulfur discolouration risks common in reclaimed slates.
  • Riverstone Phyllite for Conservation Projects

    The Bodmin Jail restoration demonstrates Riverstone’s heritage capabilities:

  • Historical accuracy: 200mm gauge fixing replicated original 1820s roof patterns using copper nails and Permavent breather felt.
  • Structural load optimization: 1235kg/m³ density allowed 15% rafter spacing reduction vs. traditional Cornish slate.
  • Long-term preservation: 0.27% water absorption prevents freeze-thaw damage in exposed coastal locations.
  • Contact us

    Professional Support for Heritage Projects

    SSQ provides comprehensive assistance throughout your luxury roofing project:

  • Personal consultation with slate specialists
  • Custom specification development
  • Architectural design support
  • Sample selection service
  • Installation oversight
  • Contact us
    slate tiles at quarry

    Sustainability Credentials

    Commercial buildings increasingly require verifiable environmental credentials. SSQ slate delivers:

  • Carbon footprint: 0.03kg CO₂/m² vs. 4.2kg for synthetic slates
  • Longevity: 150+ year lifespan eliminates multiple replacement cycles
  • Circular economy: 98% recyclability rate for construction offcuts and end-of-life material
  • No chemical treatments: 100% natural material requires no toxic processing
  • Carbon-neutral quarrying: Our operations meet ISO 14001 environmental standards
  • Contact us

    Technical Support for Commercial Projects

    SSQ provides comprehensive technical support throughout your project:

  • Free wind uplift reports tailored to UK meteorological zones
  • BIM/CAD files for seamless integration into architectural plans
  • On-site installation guidance from NFRC-approved technicians
  • Sample specification language for tender documents
  • CPD sessions for architectural practices
  • Contact us
    Dundee Royal Infirmary
    The General Bristol

    Featured Heritage Projects

    Our slate graces some of the most prestigious residential properties:

  • The General - City of Bristol
  • St. John’s Episcopal Church - Keokuk
  • Bodmin Jail - Cornwall
  • Avonbridge House - Chippenham
  • Find Out More Case Studies
  • Discuss Your Project
  • View Case Studies
  • Request a Sample
  • Book a CPD
  • Discuss Your Project

    Discuss Your Project

    Our technical team specialises in commercial and public building applications, providing tailored recommendations for your specific project requirements.

     

    View Case Studies

    View Commercial Case Studies

    Over the last forty years, we’ve built up a huge amount of expertise covering natural slate, roofing, geology, specifications and so much more – and you can benefit from that, along with case studies, CAD drawings, technical PDFS and a wealth of other support.

    Case Studies
    Riverstone ridge roof

    Request a Sample

    Request a Sample

    The best way of judging the quality of slate and phyllite is to hold it in your hands, and examine it in detail for yourself.
    If you’d like a sample of any of the products we provide, don’t hesitate to fill in the form below.

    Check which samples you would like to receive:

    Book a CPD

    Book a CPD

    At SSQ, we love sharing our decades of natural slate expertise with architects, and our CPDs are always extremely popular.
    On our RIBA-approved Why Specify Slate CPD, you’ll learn about:

    • How to guarantee a perfect slate roof
    • The secret to specifying
    • Unusual roof designs
    • How to avoid specifying defective slate
    • The difference between CE tested and true quality slate
    • The legal requirements when it comes to specifying slate
    • How to specify random coursed roofing slates
    • The difference between hook and nail fixing
    • The environmental benefits of natural slate
    • Specifying heritage roofing slates

    … and a whole lot more.

    If you’re interested in booking a place on our next CPD, simply fill in this form.

    UKCA Logo
    New NF logo
    CE logo
    LPOC Logo
    SPAB supporter
    CPD RIBA logo
    nfrc logo
    NBS Partner Logo Full
    GLDA- Corporate Membership Logo
    CFS CO2 Neutral Org Logo
    BRE verified Logo
    Barbour Product Search Logo
    British Assessment Bureau ISO 9001 Certification Badges

    Testimonials

    It was an absolute pleasure to meet you today, and I just wanted to take a moment to thank you for your time and a wonderfully informative CPD.

    The whole team really enjoyed it, and you definitely conveyed your passion and knowledge of your products!

    I would say I will keep SSQ in mind for future projects, but they always have been. However, I have definitely left with a need to utilise more slate in my design work!

    Michael Clifton BSc ACIAT - Oakbridge Bespoke Homes Ltd

    Testimonials

    Working in a conservation area brings a special responsibility. SSQ Riverstone slate fits perfectly, its tone and texture blending seamlessly with its surroundings.

    Joan Kinane, Architect

    Testimonials

    With the roofs being such a visible feature, the choice of roofing slate was a significant decision. We involved the roofing contractor at an early stage in the selection process and they recommended SSQ’s Del Carmen Blue-black slates. Although it’s not an indigenous slate, it is an excellent match for the originals and, having used Spanish slate on other projects, we know the quality is there.

    Richard Thorpe, Ridge and Partners LLP

    Testimonials

    Everyone liked Sarria: the client was delighted with its appearance and its consistency made it easy to cut and lay.

    Gary Lambert, Complete Roofing Contractors

    Testimonials

    SSQ Matacouta slate was chosen as the most sympathetic option. Its consistency and competitive price make it a clear winner over indigenous slates.

    Historic Scotland

    Testimonials

    The choice of slates was made easier due to the quality of product you provide and the support of Gary Firth throughout the process – which I much appreciate. Gary is a good ambassador for your company.

    Pat Murray, Senior Project Engineer, Alvance Group

    Testimonials

    We specified SSQ First Domiz Blue-grey roofing slate for both technical and aesthetic reasons:its strength and quality gives the performance needed and its cold, hard, colour provides a dramatic foil to the rich warmth of the western red cedar walls.

    Mark Webber, Architect, Nichols Brown Webber

    Testimonials

    The quality and strength were there, the colour was similar to indigenous Welsh slate and its ‘traditional’ look was in keeping with the surrounding community. In fact, as I had used it on my own Edwardian house, I knew it was a good slate!

    Julian Bohling, OSP Architecture

    Testimonials

    Being both high quality and cost-effective, Matacouta slate from SSQ is proving very popular with specifiers and contractors alike for refurbishment as well as for new build projects.

    Mr Roy Clark, Baxter Clark and Paul

    Testimonials

    With so many ‘interested parties’ the local planners set their minds on a natural slate roof at a very early stage of the project and, from this starting point, we needed something that would satisfy a number of technical and aesthetic requirements – SSQ Domiz blue-grey, was the one chosen for use to compliment the local ‘Shere Green’ colour.

    Ben Hunt, Total Project Integration

    Testimonials

    SSQ Ultra Del Carmen slates come with a 75-year guarantee and that was important. Not only that, the on-site services promised – and delivered – by SSQ enabled a smooth and easy workflow.

    Stuart Howes, Architect

    Testimonials

    It is a very attractive development and we needed something equally attractive and of equally high quality for the roofing material. SSQ Del Carmen slate is top quality, and we liked the colour and texture. What’s more, it is very good value. I’d have no hesitation choosing it again.

    Mr Keith Wills, Clancy's Building Manager

    map of the world

    Case Study

    Riverstone helps restore heritage charm to Russell Street School

    Read more View all case studies

    Case Study

    Riverstone brings new life to historic Otter Valley landmark

    Read more View all case studies

    Case Study

    SSQ’s Riverstone delivers award-winning restoration for iconic Cornish church

    Read more View all case studies

    Case Study

    SSQ’s exceptional slate contributes to award-nominated heritage restoration

    Read more View all case studies

    Case Study

    SSQ’s Riverstone provides reliable roofing solution for a piece of Cornish mining history

    Read more View all case studies

    Sign up to our newsletter

    Subscribe to our newsletter to keep up to date with the latest news and offers.