Application

Builder 3&2 Volume 02 - Construction manual for building structures
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Figure 4-4.-Nailing the siding. the fresh cut ends of the siding in a water-repellent preservative before boards are roiled in place. After the siding is in place, it is helpful to use a small finger-actuated oil can to apply the water-repellent preservative to the ends and butt joints. Drop siding is installed in much the same way as lap siding except for spacing and nailing. Drop, Dolly Varden, and similar sidings have a constant exposure distance. The face width is normally 5 1/4 inches for 1- by 6-inch siding and 7 1/4 inches for 1- by 8-inch siding. Normally, one or two nails should be used at each stud, depending on the width (fig. 4-4). The length of the nail depends on the type of sheathing used, but penetration into the stud or through the wood backing should beat least 1 1/2 inches. Application There are two ways to apply nonwood siding: horizontally and vertically. Note that these are manufactured items. Make sure you follow the recommended installation procedures. HORIZONTALLY.— Horizontally applied matched paneling in narrow widths should be blind-nailed at the tongue with a corrosion-resistant finishing nail (fig. 4-4). For widths greater than 6 inches, an additional nail should be used as shown. Other materials, such as plywood, hardboard, or medium-density fiberboard, are used horizontally in widths up to 12 inches. They should be applied in the same manner as lap or drop siding, depending on the pattern. Prepackaged siding should be applied according to the manufacturer’s directions. VERTICALLY.— Vertically applied siding and sidings with interlapping joints should be nailed in the same manner as those applied horizontally. However, they should be nailed to blocking used between studs or to wood or plywood sheathing. Blocking should be spaced from 16 to 24 inches OC. With plywood or nominal 1-inch board sheathing, nails should be spaced on 16-inch centers only. When the various combinations of boards and battens are used, they should also be nailed to blocking spaced from 16 to 24 inches OC between studs, or closer for wood sheathing. The first boards or battens should be fastened with nails at each blocking to provide at least 1 1/2 inches of penetration. For wide underboards, two nails spaced about 2 inches apart maybe used rather than the single row along the center (fig. 4-2). Nails of the top board or batten should always miss the underboards and should not be nailed through them (fig. 4-2). In such applications, double nails should be spaced closely to prevent splitting if the board shrinks. It is also a good practice to use sheathing paper, such as 15-pound asphalt felt, under vertical siding. Exterior-grade plywood, paper-overlaid plywood, and similar sheet materials used for siding are usually applied vertically. The nails should be driven over the 4-5

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