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BS 5534 Grade Battens

BS 5534 Grade Battens

Product catalog summary

Introduction
Roofing battens must adhere to the BS 5534 standard, which specifies requirements for species, characteristics, defects, dimensions, and grading. Non-compliance can invalidate warranties.

Specifications
BS 5534 outlines permissible characteristics such as knots, fissures, splits, and moisture content. Battens must be pre-graded and marked according to the standard, with supporting documentation.

Grading and Compliance
Factory grading is recommended for accuracy and consistency, with mechanical grading using technology like laser scanning preferred over visual grading. JB Red battens from Marley Eternit use advanced scanning for precision.

Documentation Requirements
Documentation must include the supplier's name, origin, BS 5534 compliance, basic size, and preservative type if applicable. Counter battens need not be graded unless used for specific structural purposes.

Size and Tolerances
Minimum batten sizes are specified for different applications, with tolerances of +3mm/-0mm for depth and +/-3mm for width. Battens must be at least 25mm deep, and spans over 600mm require structural calculations.

Recommendations
Guidance should be sought from roof covering or insulated sarking manufacturers. Preservative treatment is advised for counter battens used in high moisture areas.

Contact Information
For further information, contact Marley Eternit via phone, email, or visit their website.

Catalog excerpts

grade batt

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BS 5534 and roofing battens Roofing battens must comply with BS 5534: 2014. This means that all battens should be graded in accordance with BS 5534 and should have the appropriate supporting documentation. All Marley Eternit roofing battens are mechanically pre-graded and fully BS 5534 compliant. This means that you can specify and install our battens with complete confidence with less on site sorting, less time and product wastage, and minimised health and safety risk. Roofing battens Not all battens are the same. Roofing battens must meet the recommendations stated in BS 5534 in terms of their...

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Ensuring quality and consistency All documentation with a roofing batten delivery must include: • Name of supplier (the company that graded the roofing battens NOT the company that cut them) • Origin • Graded in accordance with BS 5534 • Basic size • Type of preservative (if applicable) It is important to note that counter battens need not be marked or graded where they are fully supported by the rafters. In cases where they are used to restrain insulation boards and are subject to upward bending loads they should be graded. However, if counter battens are used to provide a ventilation gap beneath...

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Call Email Or visit 01283 722588 i nfo@ marl eye tern it.co.uk www.marleyeternit.co.uk ^MarleyEternit Marley Eternit Lichfield Road Branston Burton upon Trent DE14 3HD

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