The Duero is a natural roof slate which is slightly textured and gives a traditional look to the roof due to it’s heavier thickness. It appeals to roofers as well as specifiers and developers.
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.
This roofing slate complies with all relevant British and European standard BS EN 12326 and the test results show that this slate is A1, T1 and S1.
Source:
Spain
Approx. Thickness:
9-10mm
Colour:
Blue Black
Texture:
Riven
Sizes Available:
400x250mm, 500 x 250mm
Grades:
First Mix
Pre-Holing 500 x 250mm:
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% wastage allowance should be applied.
Approx. Weight:
44 kg / M2 based on 500 x 250mm laid to 90mm lap
Guarantee:
75 year site specific guarantee available upon request
BS EN 12326-1:2014 Test Results:
Water Absorption A1, Thermal Cycle T1, Sulphur Dioxide Exposure S1