| Standard scope | Field determination of water penetration through masonry wall surfaces. | Product standard for fibre-cement flat sheets used for external and internal applications. | The two standards address different evidence levels: installed wall performance versus factory product performance. | Use the standard that matches the construction stage and the actual wall product. |
| Main moisture question | Can the constructed wall surface resist water penetration under a defined field exposure? | Does the fibre-cement sheet demonstrate water impermeability and durability under specified laboratory conditioning? | A moisture-resistant panel can still fail if joints, flashings, fasteners, or substrates are poorly detailed. | Require both product documentation and project-level envelope verification where exposure is severe. |
| Test environment | On-site test performed on a completed or representative masonry wall surface. | Laboratory testing of representative fibre-cement specimens according to the selected EN 12467 test procedure. | Field exposure includes real joints and installation conditions; laboratory testing provides controlled product comparison. | Do not treat a laboratory pass as proof that the entire installed façade is watertight. |
| Reported result | Water penetration or leakage observations recorded from the field test, together with test conditions and wall location. | A conformity result for the applicable requirement, including water impermeability where specified by the product standard. | Results must be traceable to the exact wall assembly, sheet type, thickness, finish, and test method. | Reject reports that omit specimen identification, conditioning, test date, or applicable acceptance criteria. |
| Relevant moisture mechanisms | Wind-driven rain and water entry through the installed wall surface, joints, interfaces, and construction details. | Water impermeability plus durability-related exposure such as warm-water, soak-dry, and freeze-thaw testing when applicable. | Different climates create different risks: tropical rainfall, coastal humidity, freeze-thaw cycles, or rapid wetting and drying. | Select tests according to the project climate, façade orientation, drainage design, and maintenance plan. |
| Best-fit wall systems | Masonry wall surfaces and compatible installed wall assemblies where field water penetration is the concern. | Fibre-cement flat sheets, including decorative panels when they fall within the standard’s product scope. | Ceramic tile, metal panels, HPL, natural stone, and other products may require different product-specific standards. | Confirm applicability before comparing test results from different material categories. |
| Joint and installation sensitivity | High; workmanship, joint design, sealants, flashings, penetrations, and substrate conditions directly influence the result. | Primarily evaluates the sheet product; the complete façade installation is not represented unless separately tested. | Decorative finishes do not compensate for open joints, inadequate drainage, or incompatible backing systems. | Approve the panel and the installation details as separate design controls. |
| Recommended project evidence | Field test record, wall location, weather or exposure conditions, test configuration, observations, and corrective-action history. | Independent laboratory report or declaration showing the applicable EN 12467 requirements and product classification. | Clear documentation reduces the risk of substituting an attractive but unsuitable finish. | Use project-specific evidence for approval rather than relying only on marketing claims. |
| Global project suitability | Useful for verifying installed façade performance in the actual project location. | Useful for qualifying fibre-cement sheet products consistently across markets that recognize the European product standard. | International projects often combine different codes, climates, substrates, and installation practices. | Build a compliance matrix covering local regulations, product standards, and site-specific water-management requirements. |