Phyllite: 560 million years in the making

Phyllite is a type of metamorphic rock, that forms when shale is subjected to incredible heat and pressure for hundreds of millions of years underground. The resulting material is an outstanding natural stone that’s perfectly suited to roofing, flooring, cladding and much more.

Harder, denser and stronger than slate, or any of its other competitor materials, phyllite nevertheless splits easily during processing, and the mica particles on its surface give it an unmistakable ‘phyllitic sheen’.

Find Out More

Phyllite thrives under pressure

Phyllite is the result of similar geological processes to the ones that produce other natural materials like slate – except phyllite undergoes even higher temperatures and greater pressures. That causes the clay present in the material to break down and form mica, which is responsible for phyllite’s satin-like lustre.

University of Bristol
University of Bristol

The finest phyllite, sourced from South America

Phyllite is extremely rare – much more so than slate. But at SSQ, we’re lucky enough to own one of the finest phyllite quarries in the world – San Luis, in La Repressa, Argentina.

It’s here that we source our exclusive Riverstone phyllite, put the extracted material through the most rigorous quality checks, before distributing the very best of it to customers all around the world.

Contact us

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

SSQ Rocaber Blue-grey slate was actually chosen at the initial design-concept stage. A natural slate roof was in keeping with the traditional local architecture.

Tom Ewan, Architect at Model Developments

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

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

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

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

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 SSQ Del Carmen was made easier after confirmation that it had gained approval for use in the Welsh National Parks as an alternative to indigenous materials. We were also pleased with the level of technical, design and on-site support we received from SSQ.

The Hafod Renewal Office

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

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

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

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

Case Study

Del Carmen and NRA Roofing rise to challenge on complex school installation

Read more View all case studies

Case Study

Christ’s College

Read more View all case studies

Case Study

Kresen Kernow

Read more View all case studies

Case Study

Broad Meadow

Read more View all case studies

Case Study

The Cowyards

Read more View all case studies