This section is from the book "Modern Buildings, Their Planning, Construction And Equipment Vol2", by G. A. T. Middleton. Also available from Amazon: Modern Buildings.
The lead to be of the best description known as milled lead, to hold the full weights specified and to be free from all defects, to be laid in the best manner and well dressed down in valleys, gutters, flashings, etc., all edges to be cut straight, and to include all necessary solder, tacks, wall hooks, lead dots, welts, etc.
Lay similar back gutters to all chimney stacks, etc.
The gutters to be laid to falls of 2 inches in 10 feet, and with 2-inch drips not more than 10 feet apart.
Where sloping roofs abut against walls, stacks, skylights, etc., provide 4-lb. lead soakers, their length equal to the gauge and lap of tiling added together, and 8 inches wide, 4 inches under tiles and turned up 4 inches against walls, etc., one to each course of tiles, and to be fixed by the tiler.
Cover the upturned edges of lead gutters, etc., with 5-lb lead flashings 6 inches wide, turned into joints of brickwork or raglets in stone, and lead wedged and pointed (see Bricklayer), and where against woodwork to be close copper nailed and bedded in white lead.
Cover the upturned edges of soakers with 5-lb. stepped flashings 6 inches wide, and fixed as described to flashings.
Put to fronts of chimney stacks, skylights, etc., 5-lb. aprons 12 inches wide, fixed as described to flashings.
All flashings, aprons, etc., to lap 3 inches at joints and 6 inches at angles.
Cover the cheeks of dormers and the spandrel reveals of attic windows as shown with 5-lb. lead, copper nailed at top edges under tiles, and secured to boarding with brass screws and soldered dots, one to every superficial yard.
The lead pipes to be drawn of the best make, and to include all joints, tacks, wall hooks, bends, etc., and fixing complete.
All joints to be wiped solder.
The whole of the internal plumber's work to be in strict accordance with the regulations of the Water Company, and to their approval.
The pipes are to be of the following weights:-
Other Wastes and
Lbs. per Yard.
Lbs. per Yard.
Lbs. per Yard.
All pipes taken through roof to have 5-lb. lead slate tafted and soldered to pipe.
Line the safes with 5-lb. lead turned over rim at edges and open copper nailed; form outlet and solder on short length of 3/4-inch lead pipe taken through roof with copper flaps on end.
Take from water-waste preventers 3/4-inch lead overflows through wall, with copper flaps on ends.
Take from cisterns in roof 1 1/2-inch lead overflows through roof, with copper flaps on ends.
Put under scullery sink and lavatory basins 2-inch Dubois or Sutcliff drawn lead traps with brass cap and screw for cleaning, and take from traps 2-inch lead waste pipes through wall, and connect to main 2 1/2-inch waste carried up at least 3 feet above eaves, and connected at foot to side inlet of gulley with a brass thimble and wiped soldered joint; the waste to be fixed with lead tacks as described to soil pipe.
Provide and fix to scullery sink 2-inch brass washer and waste with movable grating.
Provide and fix from w.c.'s a main 4-inch internal diameter drawn lead soil pipe equal to 8-lb. lead fixed with cast lead tacks not more than 3 feet apart to oak plugs in brick joints with moulded headed nails, connected at foot to drain with brass thimble and wiped soldered joint, and carried up above roof as shown as vent pipe, the branches from the w.c.'s to be of similar pipe bent as required and connected to traps of w.c.'s with brass collar and flanged and bolted joint.
Take from the trap of lowest w.c. at a point 4 inches beyond the outgo a 2 1/2-inch anti-siphonage pipe secured with tacks as described to soil pipe, and connect to soil pipe 3 feet above top of highest trap; take 2 1/2-inch similar branch pipes from similar points on the traps of upper w.c.'s, and connect to main anti-siphonage pipe with soldered branch joints.
Provide and fix 1 1/4-inch lead flushing pipe from w.w.p. cisterns connected to arm of w.c. with canvas and putty joint.