. Cyclopedia of architecture, carpentry, and building; a general reference work ... Fig. 286. Cornice Construction for Con-cealed Gutter 216 CARPENTRY 205 finish. The first is the most simple, and may be taken care of asshown in Fig. 287. Here, A is the ridge board, BB are the rafters,E is the roof boarding, C is the shinghng, and D is the finish at theridge, consisting of two pieces of board about 6 or 8 inches wideand I inch thick, which are nailed on top of the shingling to forma finish. In case the ridge board is carried up above the roof boarding,it is customary to make the ridge finish o
. Cyclopedia of architecture, carpentry, and building; a general reference work ... Fig. 286. Cornice Construction for Con-cealed Gutter 216 CARPENTRY 205 finish. The first is the most simple, and may be taken care of asshown in Fig. 287. Here, A is the ridge board, BB are the rafters,E is the roof boarding, C is the shinghng, and D is the finish at theridge, consisting of two pieces of board about 6 or 8 inches wideand I inch thick, which are nailed on top of the shingling to forma finish. In case the ridge board is carried up above the roof boarding,it is customary to make the ridge finish of galvanized iron or ofcopper or other metal. This may be done very simply, as shownin Fig. 288. Here the ridge board is extended above the roof board-ing and around it is shaped a strip of galvanized iron or copper orzinc, which is continued down over the shingles of the roof so as toform a flashing. This makes a good ridge finish and one which iswater-tight if it is properly put on. The galvanized iron should be. Fig. 287. Simple Ridge Finish Fig. 288. Galvanized Iron Ridge Finish flashed down over the shingles for a distance of at least 6 inches. Itis not necessary that the ridge board should be extended abovethe roof boarding. The same result may be accomplished by nail-ing a separate piece of 2 X 4-inch or 2 X 5-inch scantling to the topof the shingles, running lengthwise of the roof, to form a ridge overwhich the metal may be shaped. This method may perhaps makea tighter job than the other. Skylight Openings. It is sometimes necessary to make anopening in a roof surface for the admission of light to the roomsunder the roof. This is usually done by the formation of what isknown as a dormer window, the method of framing for which hasbeen already described, but often it is desired to admit light whenthe attic space is not of sufficient importance to justify the introduc-tion of a dormer window in the roof. In this case recourse is had 217 206 CARPENTRY to a skylight. A skyli
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