th the main cornice. The upper portion of the roof, whichhas usually a slight pitch, should befirst covered with what are termedsheathing-boards, and then with tin.The sheathing-boards must be well sea-soned, not less than one inch thick,narrow, securely nailed to the rafters,and invariably tongued… … DETAILS OF DOUBLE DOORS. \ 1868.]. Practical Carpentry and Joinery. 251 square joints. This portion of the roofis invariably covered with slate, when-ever such material can be obtained ; andwhere it is not procurable, shingles areoften substituted. When the form ofthe roof is curved, the slates are…
Architecture
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![An illustration from Bicknell's village builder. Elevations and plans for cottages, villas, suburban residences, farm houses [etc.] also exterior and interior details for public and private buildings, with approved forms of contracts and specifications. Containing fifty-five plates drawn to scale (1872)](https://img.insideoutlibrary.com/img/200/ia-bicknellsvillage00bick-134-111.webp)
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