Slate Offerdal Slate
Mixed1 linked source
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Slate
Offerdal Slate
Metamorphic slate
A mixed, verify from supplier slate with a documented natural-stone character. The recorded appearance includes natural variation; verify slab photos and quarry selection. Recorded applications include roofing, flooring, walling and paving.
Stone familySlate
Primary colourMixed
Low-Medium verification · Reference STN-0005545
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Specification snapshot
Indicative catalogue data. Verify the exact stone, finish, thickness and current test certificates before specification.
Mohs hardness3-4
Water absorption0.2-1.0 %
Compressive strength80-160 MPa
Flexural strength20-45 MPa
Density2600-2800 kg/m³
PorosityNot reported
Material profile
Character & application
- Common finishes
- Natural cleft, honed, brushed
- Typical uses
- Roofing, flooring, walling, paving
- Exterior suitability
- Good
- Frost resistance
- Generally good
- Recorded colour palette
- Mixed, Verify From Supplier