The Garden Guide

Book: Gardening Tools, Equipment and Buildings
Chapter: Chapter 6: Structures used in Gardening

Cast iron glazing bars

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2080. The material of fixed roofs is generally iron, as being less bulky in proportion to the strength required, most durable, and admitting, in the case of curvilinear roofs, a curvature to be formed at less expense than it could be of timber. In these roofs, in general, no other bare or opaque bearers are required than those for receiving the glass; and hence their simplicity and unity with regard to component parts, and the equal degree of transparency in every part of the surface.