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.
All timbers to be sawn die square and to hold the full sizes specified, and the work to be framed and executed in the very best manner.
Frame the roofs as shown on the drawings with the various scantlings as figured, the principal rafters to be tenoned to king-post at head and secured by 2 by 3/8-inch three-way straps, and framed at feet to the beam and secured by 2 by 3/8-inch heel strap and back-plate; the king-posts stub tenoned at feet to the tie beam, and secured by 2 by 3/8-inch straps with forged ends and keys and cotters, the whole framed together and executed in the very best manner. The common rafter to be spiked to ridges, and notched and spiked to curbs and wall-plates, and notched and spiked over purlins. The roof below the curb to be framed as a partition with quarters or rafters framed into head and sill and with posts at angles and under principals, all to scantlings figured on the drawings.
Frame the ashlering with 4 by 3-inch heads, posts and sills, and 4 by 2-inch quarters.
No rafters or quarters to be more than 12 inches apart.
All trimmers and trimmer rafters to be 1 inch thicker than the common rafters.
Provide all necessary centering and turning pieces to flat, segmental, or other soffits, including the necessary strutting.
Provide the requisite flat-boarded centering to concrete floors, to include the necessary hangers or horsing as may be required.
Provide and fix the necessary 2 by 2-inch fir bracketing and cradling to sides and soffits of steel girders for lathing or fixing joinery to, secured to 4 by 3-inch fir plates bolted through web with |-inch bolts every 3 feet, and blocked out as required.
Lay the gutters with 1-inch boards for lead on 2 1/2 by 2-inch bearers, framed where required with all necessary 2-inch deal rolls and 2-inch cross rebated drips and narrow risers, and form dished and rebated sinkings with holes for socket pipes.
Put to all lead gutters snow cradling of 1 by 1-inch sawn fir fillets secured to 2 1/2by 2-inch hollowed oak bearers not exceeding 4 feet apart, to be in lengths not exceeding 10 feet, and the whole to be twice tarred.
Cover the roof with Croggan's (or other approved) inodorous roofing felt, well lapped and nailed.
Put under cisterns 1 1/4-inch cross-tongued safes with 3 by 1 1/2 inch dovetailed rims rounded on top edge, and with dished and rebated holes for outlets.
Put to all eaves 3 by 2-inch deal splayed tilting fillets.
Fix to all eaves 1 by 7-inch wrought and beaded fascia secured to feet of rafters.
Trim ceiling for and provide and hang 1 1/4-inch, ledged trap door, size 2 feet by 2 feet, hung on a pair of 2 1/2-inch wrought-iron butts to 1 1/2-inch rebated and beaded lining, and furnished with two 6-inch iron barrel bolts.
Enclose the cisterns in roof with 1-inch V-jointed matched boarding, and two thicknesses of stout felt with a ledged top similarly made hung on a pair of 3-inch wrought iron butts, and furnished with oak turnbutton. The boarding to be fixed to 2 by 1-inch fillets with brass cups and screws. Do all boring for and fitting to pipes, etc