The roof truss guide is intended to:
· facilitate the design and construction of roof trusses
· improve the quality of trusses
· reduce design and fabrication costs
· achieve more cost- and material-effective roof trusses
The guide is primarily addressed to contractors, builders, practising engineers and architects constructing roof structures with particular emphasis on MCR covered buildings.
The roof truss guide provides:
· hands-on advice on design and construction of roof trusses
· layout drawings and construction details for the most common timber and steel trusses
· design aids in the form of standard detailing tables
· references on more elaborate roof truss designs and construction aspects
The manual is not:
· a text book for the structural analysis of roof trusses
· a guideline for the production of roof tiles and associated issues (production management, quality control and testing, marketing)
For information on these subjects, please consult the respective Toolkit Elements (see overview inside front cover).
The Roof Truss Guide should be used in consultation with the FCR / MCR Toolkit No. 24: Roof Structure Guide.
The manual does not:
· follow a particular standard of a country or region
· give information on particular problems of specific countries (high-altitude snow or cyclone loading)
· include design aids and sample trusses for large hangars and halls with spans in excess of 15 to 20 m.
The material presented in this guide is based on general engineering practice. It is up to the readers to examine the validity of the proposed design for their application. The authors of this guide do not bear any responsibility for damage or failure of roof trusses constructed in consultation of this manual.