WeatherProof
Uncoated
Natural light grey mineral surface. No separate facing, adhesive or composite layer.
What it is
Homogeneous, non-asbestos autoclaved cellulose fibre cement board developed as a mineral wind barrier behind façade systems. Completely uncoated, natural light grey. Not intended as a permanently exposed finished façade surface.
Expressions
Colour
Natural light grey
No decorative colour collection. The board sits behind the final façade.
The board
WeatherProof
The finish strip stays in place. The turnable board loads only after you open it. It shows face, thickness and edge from that strip. It is not a CAD model.
Finish strip from the 2026 image set. Not a CAD model. The thickness is a geometric study, not a measured sample.
Formats
The sheets on the record.
- 1200 × 2700 mm
- 1200 × 3000 mm
These are the sizes the calculator is allowed to count. Not an installation layout.
Pictures
What we still need.
Full façadesRGB JPG or WebP · 2400 × 1600 px · 3:2 · no watermark
Surface close-upsRGB JPG or WebP · 1600 × 1600 px · 1:1 · no watermark
Face and edgesRGB JPG or WebP · 1600 × 2000 px · 4:5 · no watermark
FactorysRGB JPG or WebP · 2400 × 1600 px · 3:2 · no watermark
Reserved frames are empty on purpose. The finish strips already delivered are not requested again. Send a new photograph in sRGB, as JPG or WebP, at the size named on the frame, with no watermark. Vivid, Rough and Heavy-Duty still need a face photograph. Skanfas confirms the rights before a picture is published.
Specification
The figures that decide.
- Reaction to fire
- A1
Full technical data
- 4.5 mm
- 1200 × 2700 mm · 1200 × 3000 mm · 5.99 kg/m²
- 9.0 mm
- 1200 × 2700 mm · 1200 × 3000 mm · 11.97 kg/m²
- Other thicknesses
- 3.2–20 mm manufacturing range, confirmed per order
- Technical standard
- EN 12467:2012 + A2:2018
- Reaction to fire
- A1
- Fire classification
- BRE Global 292606-2
- Classified density
- 1.33–1.42 g/cm³
- Dry density, minimum
- 1330 kg/m³
- Dry density, average
- 1420 kg/m³
- Dimensional variation
- Level I
- Sound reduction
- Rw 34 dB · Rw + C 32 dB
- Air permeability
- 0.0075 m³/m²·h·Pa
The A1 classification applies to the homogeneous, uncoated board within the field of BRE Global 292606-2. A coated, faced or otherwise modified product needs the fire classification of that finished system. WeatherProof does not replace project waterproofing, air-tightness or flashing.
Use
Where it is specified
Wind barrier behind a designed façade system, in new construction and renovation.
Interior and exterior wall assemblies, subject to system design and local requirements.
Not a permanently exposed finished façade.
Fabrication
Factory cut-to-size, drilling and machining are available.
Fabrication
Site cutting requires suitable fibre-cement tooling and dust extraction.
Fabrication
Fastener type, centres, edge distances and joint treatment come from the project design, not from a generic diagram.
Documents
For the specification.
Ask Skanfas for the current file.
Fire classification BRE Global 292606-2
Referenced in the 2026 datasheet. File not in this package.
Request document
Request documentEN 12467 documentation
Applicable manufacturer / Skanfas documents supplied per project.
Request document
Request documentInstallation guidance
Project-specific guidance on request. No invented detail drawings.
Coming later
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