Choose from our two styles of slate

Why is it unique?

Low Pitch

43% Less Slate

Natural Slates

Extremely high performance

As low as 10° pitch
(5-7mm slate thickness)

Excellent kerbside appeal

Looks identical to a traditionally laid slate roof


ArmouredSlate roof 20kg/m²
Average slate roof 36kg/m²

Easy to install

Using tried and tested materials

Excellent comparable fire rated properties   

Eliminates ‘kickers’ 

Shorter slates have far less twist

Available with  

Fully vented, dry fix natural slate ridge. 

bre armouredslate testing rig

Best performance

Tested by the BRE with outstanding performance as low as 7.5° pitch on wind driven rain tests.

When tested against BS PD CEN/TR 15601 it was shown that the ArmouredSlate far outperformed any other natural slate roofing system available, with outstanding weatherproofing performance even at 7.5° degrees.

*Although tested as low as 7.5° Mayan only recommend installation at 10° to allow for contingency. 

Read the full case study on our testing with the BRE here:

Mayan Case Study 

43% less slate used


The Mayan ArmouredSlate system changes the way slate is installed. Our specially formed and patented GRP plate and weather system replaces the double lap that is normally required when slating, using our unique weathering bar and capillary strip.

When using the ArmouredSlate system, the roof is lighter, the performance is better, the installation time is quicker as well as saving 43% of the amount of slate that would normally be required.

armouredslate closeup

High-end aesthetics

The new Mayan ArmouredSlate system provides the aesthetics of a traditional slate roof. It is not possible to tell the difference between ArmouredSlate and a normal slate roof.

By using much shorter slates, twist and kickers are no longer a problem, resulting in a much more uniform installation.

ArmouredSlate is colour matched to the slates in a unique UV stabilised matt finish.

The Whole Range

Complete the whole system with the Mayan RealRidge, including block and hip ends, as well as our groundbreaking Heritage valley.

Our slate, stone, ridge and valley systems provide the best performance available, and offer unsurpassed aesthetics.  

Mayan have reinvented roofing to provide complete solutions for a modern roof with traditional looks. 

The ArmouredSlate roofing system dramatically improves the overall performance of a slate roof. 

How does it work?

The double lap layers used in standard slating are replaced by our ArmouredSlate, which is made from high performance GRP, with its excellent proven track record in roofing applications. 

The front of the ArmouredSlate uses a forward weather seal to prevent rain blowing under the slates and stop them from rattling. Our unique weathering bar then provides a second barrier preventing any wind driven or capillary driven rain from tracking up the slate.

See the full installation guide here:  Installation guide

*ArmouredSlate is colour matched to the slates in Squirrel Grey, the white in the above illustration is only to show how it works. 


Our standard ‘S’ type ArmouredSlate hooks over the batten.

The ‘P’ type ArmouredSlate is easily fixed directly to close boarding applications- Please contact us for more information. 

Batten gauge can be adjusted in the usual way to accommodate the rafter run.

The slates are pre-holed to allow for additional peripheral fixing.

Choose from two slate styles, with our complete Mayan ArmouredSlate roofing system.

Our technology - Single lap slate system

ArmouredSlate is made from well-known, tried and tested GRP, that has been used for over 40 years in roofing applications with consistent high-performance, long life and stability.

The GRP plate is positioned just below the slates to provide a resilient and completely waterproof layer, offering total protection against the very worst of the elements.

Straightenend Armouredslate Technology

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