Welsh Slate Roofing Information for Architects and Specifiers
Welsh Slate’s unrivalled technical team can guide you through the process from design and sampling through to the installation on site.
Our team’s experience is available to you either virtually or in person. We are happy to undertake site inspections to help offer the best choice of slates to match in with or replace an existing roof. From detailed technical advice to providing both CAD and BIM detailing, even a bespoke specification for your project.
Our technical team will work with you to find the best solutions to any roofing challenges in the design.
CLICK HERE TO ARRANGE A RIBA APPROVED CPD SEMINAR AND/OR A CPD FACTORY TOUR
*Welsh Slate RIBA certified Factory tour and seminar both earn double points towards your CPD time
Working with Architects and Specifiers
- Penrhyn® Slate has been designated as Global Heritage Stone Resource, an indication of Welsh Slate’s importance to building heritage Worldwide
- Welsh Slate implement a fully quality assured production process to deliver the best natural roofing slate available
- When selecting the correct size of Welsh Slates for a project there are several factors to consider; these include location, roof pitch as well as the desired aesthetics
Providing digital, virtual and face-to-face support on everthing Welsh Slate
Within this section of our website we have numerous resources to support you in designing and specifying Welsh Slate within your project.
Here's a quick resume and links to the relevant information:
- Digital Roofing Brochure providing a comprehensive technical guide and required Standards
- Certification & Data Sheets
- Slate roofing terminology
- UK annual driving rain index
- Slate sizes and weights
- Slate headlap tables for Natural Slate BS5534
- Slate coverage formula
- Battening and holing gauges tables
Welsh Slate Roofing Products on NBS Source
Welsh Slate has partnered with NBS to provide a single source for all product information.
This platform brings together the NBS BIM Library, NBS Plus and Product Selector which means all our products can be specified directly into projects by importing the enhanced product data directly from NBS Source using the NBS Chorus cloud-based specification writing platform.
Below is an overview from NBS Source offering the full Roofing product range all authored to both CAWS and Uniclass 2015 standards. Simply select the relevant Welsh Slate product(s) and highlight the relevant items to match your product and project requirements.
Certification & Data Sheet Downloads
This area of our roofing information for Architects and Specifiers provides an additional level of enhanced product data, in a consistent, structured format to help you save time chasing product information.
ISO 9001 2015
ISO 9001 2015 Penrhyn Quarry
ISO 9001 2015 Cwt-y-Bugail Quarry
ISO 9001 2015 Blaenau Ffestiniog Quarry
ISO 14001 2015
ISO 14001 2015 Penrhyn Quarry
ISO 14001 2015 Cwt-y-Bugail Quarry
ISO 14001 2015 Blaenau Ffestiniog Quarry
Cwt-y-Bugail Roofing
Capital Roofing Slate DECLARATION OF PERFORMANCE
County Roofing Slate DECLARATION OF PERFORMANCE
Celtic Roofing Slate DECLARATION OF PERFORMANCE
Capital Roofing SLATE Commercial document
County Roofing SLATE Commercial document
Celtic Roofing SLATE Commercial document
Penrhyn Roofing
Capital Roofing Slate DECLARATION OF PERFORMANCE
County Roofing Slate DECLARATION OF PERFORMANCE
Celtic Roofing Slate DECLARATION OF PERFORMANCE
Capital Roofing SLATE Commercial document
County Roofing SLATE Commercial document
Celtic Roofing SLATE Commercial document
Roofing ATG Certificate
Download this Roofing Brochure for a Comprehensive Guide to the Technical Requirements and Standards
Download Brochure
Latest News and Case Studies
Roofing
WELSH SLATE TOPS AN HONOURABLE RESTORATION AT LINCOLN'S INN
Penrhyn Heather Blue slates from Welsh Slate feature on Lincoln’s Inn’s Great Hall, one of London’s most unique buildings
Roofing
WELSH SLATE TOPS A SUSTAINABILITY EXEMPLAR
Roofing slates from Welsh Slate feature on the Duchy of Cornwall’s Nansledan development.
Roofing
WELSH SLATE HELPS DOVER MANSION BLOCK FROM ITS WATERLOO
An unusual double-mansard roof on a Grade II listed seafront mansion block is enjoying a new lease of life, thanks to Welsh Slate.
Roofing
WELSH SLATE WEIGHBRIDGE CHRISTMAS 2021 OPENING HOURS
Final Roofing & Architectural collections Monday 20 December by 4:00pm Final Aggregate collections Monday 20 December by 4:30pm
Roofing
WELSH SLATE HEADS UP SARAH BEENY'S NEW HOME
Roofing slates by Welsh Slate were the material of choice for TV property expert Sarah Beeny’s own home.
Roofing
WELSH SLATE PROVES JUST THE TOPPING FOR QUEEN'S LACE
Cwt-Y-Bugail roof slates feature on a £5 million new-build private house.
Roofing
SPRINGFIELD HOUSE GETS A HEALTHY NEW ROOF, THANKS TO WELSH SLATE
Hospital building gets a new lease of life from Welsh Slate and Stoic Roofing.
Roofing
"RARE" REROOF USING WELSH SLATE WINS CONTRACTOR A NATIONAL AWARD
The renovation of a 17th Century listed café in the Snowdonia National Park, which incorporated some “rare” roofing methods using Welsh Slate.
Roofing
WELSH SLATE HELPS ATTLEYS CATCH A CURVE BALL AT COAL DROPS YARD
Some 92,000 Cwt Y Bugail slates feature on a ground-breaking new/old roof.
Roofing
THE LIFE OF A WELSH SLATER DOWN UNDER
The UK versus Australia according to Nigel Carter.
Roofing
WELSH SLATE TOPS A GROUNDBREAKING LUXURY APARTMENT BLOCK
A total of more than 1,000m2 of Welsh Slate’s Penrhyn Heather Blues feature on the mansard roofs of four new storeys of luxury penthouse apartments priced between £17 million and £38 million at a former diplomatic building.
Roofing
IRISH EMBASSY
The £2.5 million re-roof of the Grade II listed Irish Embassy in London, with more than 10,000 Penrhyn Heather Blue slates from Welsh Slate, has required its own exceptional levels of diplomacy.