Elementary building construction and drawing : stage 1 (1907)
Burrell, Edward J · London : Longmans Green · leaf 154
Plumbing 143 both dressed down as close as possible to the flat. The flat nosing given in fig. 195 may be termed a seam. 108. Lap joint. — This is made by simply lapping one sheet over the other for … rials mentioned above. Fig. 195. Zmc is also employed for the same purpose, while cast-iron ridging can now be ob- tained to suit all pitches. The latter material, however, becomes eventually the most expensive on account of the frequent painting it requires. Fig. 196 shows the ridge board carried…
Building
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