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Old Quarried Cotswold Roof

Old Quarried Stone

Old Quarried.
Collyweston Style

Old Quarried stones are man-made cast pieces that mimic the square-cut, thick slabs of the Collyweston style, creating an oversized look with a strong horizontal shadow line.  Old Quarried is a perfect option for thick slate and blue stone materials.  They are cast from a large inventory of moulds to prevent any repeating details on the roof.   Old Quarried can be installed on battens or directly to the deck using a graduated installation method.


Old quarried is perfect for Modern, Contemporary, Nordic, or Urban designs; our stones work with almost any design style.

Old Quarried display
Old Quarried Stone: About

Technical Details


Old Quarried is available in weathered gray buff and the new lichen green for an instantly aged look.  Stone color is a natural random process created during the mixing and casting process. All stones are color, though.

*Custom color commissions considered on application.



Installation down to 6/12, stones can be installed directly to the deck or on battens in high snow load areas. Roof pitch below 6/12 should use additional waterproofing steps. Stones can be fastened with screws or nails. No sorting or grading is required pre-installation; a roof guide covering the graduations for each section is provided for quick installation. Installed weight can be up to 2200 Lbs Per SQ ( 100SQft), depending on the final blend.

* Batten installation is recommended for additional ventilation. 


Certification & Testing

All materials are manufactured in Great Britain, and all testing is completed at US labs to ensure quality and longevity in harsh climates.  All materials meet and exceed the requirements for ASTM Grade 1.


Manufactured in the UK by Bradstone ( Aggregate Industries ) at a state-of-the-art factory. Old Quaried stones are cast from moulds taken from natural stone pieces.  Once cured, the pieces are inspected by hand before being crated for shipping. 


Old Quarried is 100% green; 100% of the materials can be repurposed or recycled when they come to their end life.

Download our PDF brochure to learn more about our products.

Old Quarried Stone: Text

Project Gallery

Old Quarried Stone: Text
Old Quarried Stone: Text
Old Quarried Stone: Pro Gallery
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