Structural use of timber. Recommendations for the calculation basis for span tables - Purlins supporting rafters Ingestion-build-223009 BS EN ISO 5529:2010 Wheat

BS EN ISO 5529:2010 Wheat

With obedience and compliance to BS EN 10025‑3

This standard is intended to be used in conjunction with EN 1090-3 ‘Technical requirements for the execution of aluminium structures’

1 specifies requirements and gives recommendations for the design

albeit that the extended or altered system might not

Structural use of timber. Recommendations for the calculation basis for span tables - Purlins supporting rafters Ingestion-build-223009 BS EN ISO 5529:2010 WheatBS 5268 7. 6: 1990 recommends a calculation basis for the permissible clear span of purlins used in traditional pitched roof construction, i. e. not including trussed rafter roofs. The method of calculation is for purlins formed from solid timber and supported by external or internal walls or by purlin struts. The major axis of the purlin is perpendicular to the rafter slope; other orientations of the purlin are not covered by this Section of BS 5268.