PITCHED ROOF STRUCTURES AND THEIR METHODS OF ASSEMBLY AND CONSTRUCTION

摘要

A method of assembly of at least one tiled pitched roof unit module 1. The method comprises making several truss units 2 off site each incorporating a floor/ceiling joist and roof rafters 6 fixed to the joist to form a support framework for a roof covering. Preferably a floor or ceiling is mounted on the joists. The module roof covering isa tiles that are fixed to the rafters. The module is transported to, and assembled/installed on the tops of the walls of a building at, a building site. Preferably several modules can be used on a single building and each module is lifted/hoisted using a releasable securing device. Also claimed is a method of assembling on the walls of a building a tiled pitched roof module by lifting the unit module at opposite ends and positioning the module on the tops of the building walls. Also claimed is a modification of the method of assembly which contains no tiles and using a releasable securing assembly to transfer the module comprising a number of trusses onto wall tops at a building site. Also claimed is a demountable support and lifting beam 92.