Fire-rated WPC cladding should be specified by the exact tested product, not by the words "fireproof WPC."
For a commercial facade, we first identify the required local fire classification. We then match that requirement to the WPC profile, formulation, test report and wall build-up.
Selected Vocana exterior facade systems are available with EN 13501-1 Class B-s1,d0 evidence. Before project approval, we verify that the report applies to the product being proposed.
Selected system option. Reaction-to-fire classification under EN 13501-1. Availability and report scope must be confirmed for the selected profile and formulation.
Before Specification B-s1,d0 Material & Production Facade Build-Up Report Review Project Submittal FAQ
What Must Be Confirmed Before Fire-Rated WPC Is Specified?
Which fire standard and classification does the project require?
Which profile, core and surface formulation will actually be supplied?
Does the report identify the same product or specimen?
Does the facade assembly need an additional system-level review?
For a deeper comparison of EN 13501-1 and other fire-test references, see our WPC cladding fire-ratings guide.
What Does B-s1,d0 Tell the Project Team?
What Still Needs Checking?
Building height, occupancy, cavity, insulation, weather barrier, subframe, cavity barriers and local facade rules can affect the final approval route.
Our working rule: we do not use one test result as proof for every Vocana WPC profile. The test report must stay connected to the exact tested sample.
(Vocana WPC Panels Laboratory & Testing Equipment)
How Does Vocana Build Fire Performance Into the WPC Material?
Fire performance begins with formulation. We do not use the same resin, fiber, filler and additive package for every WPC application.
Fire-Sensitive Production Needs a Stable Reference
A commercial facade with a fire requirement is handled differently from ordinary decking or an indoor decorative profile.
The material, approved sample, production specification and test evidence need to stay connected.
A fire-sensitive commercial facade is treated differently from ordinary decking or an interior decorative profile.
Mineral fillers and flame-retardant additives can be included where the target formulation requires them.
Material identity, moisture or contamination risk, pigment ratio and batch consistency are checked against the approved production reference.
Profile geometry, wall thickness, unit weight, rib condition, surface and color are monitored during production rather than only at final inspection.
What Performance Data Is Available for Selected Fire-Rated Systems?
Current Vocana published information includes references for selected commercial facade configurations. Final tender documents should use the TDS and laboratory report for the exact product being ordered.
| Engineering Item | Published Reference | Project Use |
|---|---|---|
| Reaction to fire | EN 13501-1 - B-s1,d0 option | Confirm product identity and report scope before submittal. |
| Water absorption | <1.0% after 24-hour test for selected exterior system | Use with correct cavity drainage and ventilation. |
| Flexural strength | >30 MPa for selected fire-rated facade configuration | Confirm the exact profile and applicable test report. |
| Accelerated weathering | 2,000-hour QUV reference for selected exterior system | Review surface, color and formulation covered by the test. |
Available reports and company documents can also be reviewed through our Vocana testing and certificate information.
Why Does the Facade Build-Up Still Matter After the Panel Passes a Fire Test?
The WPC cladding is the visible exterior finish. It is not the complete wall.
Concrete, masonry or framed construction provides the main building support.
Their material and position can affect the complete facade design.
The cavity manages drainage and drying but may also form part of the fire strategy.
Rail spacing, anchors and connections are designed for the selected profile, wind and substrate.
The tested panel remains the exterior architectural finish, not the whole wall.
Rainwater that reaches the rear of the cladding needs a clear path down and out.
Rear airflow helps moisture leave the cavity instead of staying around panels, rails and fixing points.
WPC changes length with temperature. Historical Vocana guidance accounts for approximately 2‰ length movement in one established system.
Historical guidance uses aluminum or galvanized-steel rails at about 400–600 mm for selected profiles. Final spacing depends on the real wall and wind design.
Installation teams can continue with our exterior WPC cladding installation guide.
(Vocana WPC Cladding installation)
How Do We Check a Fire Test Report Before Project Submission?
One of the most useful parts of our project experience is knowing when a report should not be used.
Shows who submitted the tested material.
Connects the report to the tested profile or formulation.
Shows which method and report version the result belongs to.
Must match the requirement written into the project specification.
Helps the consultant understand what was actually tested.
Prevents a report for one product being applied to another product without review.
Where Does Fire-Rated WPC Cladding Fit Best?
Hotels and Resorts
Exterior elevations, entrance zones, villa facades and feature walls where fire review, UV exposure and maintenance access all matter.
Offices and Mixed-Use Buildings
Facade areas where the architect needs repeatable color, technical documentation and a defined metal subframe system.
Schools and Civic Buildings
Projects where material identification, fire documentation, installation drawings and later maintenance need to remain traceable.
What Does Vocana Prepare for a Fire-Sensitive Facade Submittal?
For architects, contractors and developers, we organize the technical file around the actual product rather than a general WPC brochure.
Product drawing, dimensions, material description, finish and approved sample reference.
Applicable laboratory report with the product identity and test standard clearly shown.
Subframe, fixing points, joints, drainage, ventilation and finishing details.
Model-level dimensional or inspection requirements linked to the approved order.
A clear submittal reduces repeated questions between design, procurement and site teams and gives everyone one approved technical reference before mass production starts.
(Vocana WPC Panels QC & Batch Inspection)
What Should You Send Us Before We Recommend Fire-Rated WPC Cladding?
Building Information
- Project country, city and building type
- Building height
- Facade application area
- Architectural elevation
- Wall build-up if available
Technical Information
- Required fire standard and classification
- Preferred WPC profile and color
- Board direction
- Estimated quantity
- Project schedule
- Required reports and submittal deadline
FAQ: Fire-Rated WPC Cladding
Is fire-rated WPC cladding non-combustible?
No. A reaction-to-fire classification such as EN 13501-1 B-s1,d0 should not be described as non-combustible. The project should use the exact classification shown in the applicable report.
Can the same EN 13501-1 report be used for every Vocana WPC profile?
No. We check the tested specimen, formulation, profile and report scope before using a fire classification for a project submittal.
Does B-s1,d0 mean the wall has 60 minutes of fire resistance?
No. B-s1,d0 is a reaction-to-fire classification. A fire-resistance period for a wall is a different performance requirement and needs its own applicable evidence.
Can Vocana support project-specific fire testing?
Where existing evidence does not match the required product or local classification, the testing requirement can be reviewed with the project team before mass production.
Need to Match WPC Cladding to a Fire Requirement?
Send us the required standard, building location, facade drawing, selected profile and estimated quantity. We can review the product, formulation, available fire evidence, installation system and project-submittal requirements before the order is released.
Check My Fire-Rated Facade Requirements