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Ultra

The Stoneleaf Ultra is a top quality blue black slate from Spain.

At the top end of our range of imported slates the Stoneleaf Ultra is a slate of premium quality. Approximately 5-6mm thick with a distinctive riven texture, the regular thickness and flatness make it popular with both roofers and specifiers.

Technical Advice

Specification

Source:
Spain
Approx Thickness:
5mm - 6mm
Colour:
Blue / Black
Texture:
Smooth
Sizes Available:
500x250mm
Grades:
Best
Pre-Holing 500x250mm:
90mm lap
Coverage at 90mm lap:
19.5 per M2
Slate and a half:
Available un-holed
Strength:
Good flexural strength both transversely and longitudinally. A recommended 5% breakage allowance should be applied.
Approx Weight:
32kg/M2 based on 500x250mm laid to 90mm lap

Guarantee: 75 year site specific guarantee available upon request

BS EN 12326-1:1:2004 Test Results: Water Absorption A1, Thermal Cycle T1, Sulphur Dioxide Exposure S1

Interested? 01277 841 555 | sales@stoneleafslates.co.uk