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Illustrated catalogue of galvanized iron roofing and shedding, iron structures, &c. : patent portable steel railways, railway plant, iron bridges, &c. (1884)

A. & J. Main & Co. · A. & J. Main & Co. · leaf 6

An illustration from Illustrated catalogue of galvanized iron roofing and shedding, iron structures, &c. : patent portable steel railways, railway plant, iron bridges, &c., 1884, leaf 6
are used, and impart the ehief strengthto the Roof, Hence it is that the thickness or gauge of the Sheets in this class of Roofing is more a question of durability thanone affecting the strength of the Structure. Trussed Roofs may be either Ridge-shaped or Curved, and in both it is to the Raftersor… … SECTION No. 1 — Suitable for Spans of 25 to 35 feet.

Roofing · Sheet roofing · Corrugated roofing · Sheet metal · Structural iron · Ironwork

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