Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, Comstock · leaf 393
es. Small cracks are commonly seen just above the ends of door sillsor window sills, as shown in Fig. 213. Such cracks generally appearnear the bottoms of high walls, and are caused by the compressionof the mortar in the lower joints of the piers. They may beavoided bv using slip-sills, as… … ^■a.>^ ,^i Fig. 21-.—The Rutty Non-furring Wall-plug. \ Fig. 213.—Cracks OverSills Caused byJoint Com-pression. To prevent such cracks the walls should be joined by a slip-joint,as described in Articles 315 and 357. Cracks are generally more likely to occur in walls that are brokenby frequent…
Building · Carpentry · Masonry
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