The Stoneleaf Duero

The Stoneleaf Duero is a natural roof slate which has a riven surface and heavily dressed edges due to being hand split. This gives a traditional look to the roof due to its heavier thickness.

The Stoneleaf Duero, sourced from La Baña, the most prestigious area in Spain for natural slate, is an excellent choice as a roof covering.

The textured surface and heavier thickness appeals to roofers as well as specifiers and developers. With a 100 year guarantee you can be sure that this slate will outlast the lifetime of the building.

Specification:

Source:
La Baña, Leon, Spain

Approx. Thickness:
400 x 25mm 10mm
500 x 250mm 7mm

Colour:
Blue Black

Texture:
Slightly Riven

Sizes Available:
400 x 250mm, 500 x 250mm

Grades:
First Mix

Coverage per M2:
400mm at 80mm lap: 25 slates
500mm at 90mm lap: 19.5 slates

Slate and a Half:
Available

Preholing 400 x 250mm
80-95mm Headlap

Preholing 500 x 250mm
90-105mm headlap

Approx. Weight:
400 x 250mm 55kg
500 x 250mm 42kg

Strength:
Good flexural strength both transversely and longitudinally. A recommended 5% breakage allowance should be applied.

Guarantee:
100 year site specific guarantee available upon request

BS EN 12326-1:2014 Test Results:
Water Absorption A1, Thermal Cycle T1, Sulphur Dioxide Exposure S1

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