Structural use of timber. Recommendations for the calculation basis for span tables - Purlins supporting rafters Ingestion-build-223009 1 specifies requirements and gives

1 specifies requirements and gives recommendations for the design

With obedience and compliance to BS EN 10025‑3

- Chlorides

for their suitability for use in contact with water intended for human consumption

3 Specimen mounting and preparation

Structural use of timber. Recommendations for the calculation basis for span tables - Purlins supporting rafters Ingestion-build-223009 1 specifies requirements and givesBS 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.