Aluminium guttering and downpipes must adhere to stringent British and European standards to ensure performance, durability, and safety in UK construction projects. These standards cover design, materials, manufacturing processes, and testing. At Alugutter, all systems are manufactured in-house using high-grade aluminium, meeting or exceeding these requirements. This article outlines the principal BS EN standards applicable to aluminium rainwater systems, including those for extrusions, castings, and alloys. It also addresses standards relevant to related products such as aluminium fascia, soffits, and wall copings where applicable.
CE Marking is not a requirement for aluminium guttering and associated products. Under current regulation, there is no harmonised European standard and as such, these products are not permitted to carry a CE mark.
For detailed product information, view our aluminium guttering range and aluminium downpipes.
Key Standards for Aluminium Guttering and Downpipes
BS EN 12056-3: Gravity Drainage Systems Inside Buildings – Roof Drainage, Layout, and Calculation
This standard provides guidelines for calculating rainwater drainage capacity, including gutter sizing and flow rates based on UK rainfall intensities. It ensures systems handle expected water volumes without overflow. Alugutter designs incorporate these calculations for optimal performance in eaves gutter applications. Use our free online drainage calculator to ensure compliance: Gutter and Downpipe Drainage Design Calculator.
BS 9101:2017 – Steel and Aluminium Rainwater Systems – Specification
BS 9101 specifies requirements for metal rainwater goods, including strength under loads such as water, wind, snow, and pedestrian access. It applies to both gutters and downpipes, excluding seamless extruded gutters. Alugutter products comply with this standard, ensuring structural integrity and longevity.
BS EN 12206-1:2004 – Paints and Varnishes – Coating of Aluminium and Aluminium Alloys for Architectural Purposes
This standard governs powder coatings on aluminium, such as the polyester powder coating used by Alugutter. It ensures coatings provide corrosion resistance and aesthetic durability, suitable for architectural applications.
BS EN 1462:2004 Class H – Brackets for Eaves Gutters – Requirements and Testing
Class H brackets must withstand specified loads and environmental conditions. This standard is essential for gutter support systems, ensuring secure installation. Alugutter brackets meet Class H requirements for reliable fixing.
BS EN 612:2005 – Eaves Gutters and Rainwater Downpipes of Metal Sheet
This standard specifies requirements for metal sheet gutters and downpipes, including dimensions, materials, and jointing. It supersedes older versions and applies to fabricated aluminium systems.
Fire Classification: EN 13501-1 Rating A2-s1,d0
Aluminium systems achieve an A2-s1,d0 rating under EN 13501-1, indicating limited combustibility with minimal smoke and no flaming droplets. This rating means our aluminium systems are suitable for use on any project at any height. This non-combustible classification aligns with UK building regulations for fire safety.
Standards for Aluminium Alloys, Extrusions, and Castings
Alugutter utilises specific alloys to meet performance demands:
- 6063-T6 for Extrusions: Governed by BS EN 755-2 (mechanical properties) and the BS EN 755 series (extruded rod, bar, tube, and profiles). This alloy provides excellent corrosion resistance and strength for half round, deepflow, box gutters, and downpipes. Explore our half round aluminium gutters, deepflow aluminium guttering, and aluminium box gutters.
- LM6 for Castings: Specified under BS EN 1706 (castings – chemical composition and mechanical properties). Used in fittings and collars for durability in gravity-cast ogee gutters and hoppers. View our aluminium moulded ogee gutters and aluminium hoppers.
- 1050 Grade Aluminium Sheet: Complies with BS EN 573-3 (chemical composition) and BS EN 485 (sheet and plate). Employed in fascia, soffit, and coping systems for formability and weather resistance.
Standards for Aluminium Fascia, Soffits, and Wall Copings
While no dedicated BS EN standards exclusively govern aluminium fascia, soffits, and copings, these products adhere to material and coating standards such as BS EN 485, BS EN 573-3, and BS EN 12206-1. These ensure resistance to weathering and structural loads. For more, see our aluminium fascia and soffits and aluminium wall copings.
Conclusion
Adhering to these BS EN standards guarantees reliable, long-lasting aluminium rainwater systems. Alugutter manufactures all products in-house, supplying at factory prices through our website.