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Finishing - 14044_165
Renovation  and  Repair

Builder 3&2 Volume 02 - Construction manual for building structures
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Figure 5-10.—Finishing an inside corner. When finishing an inside corner (fig. 5-10), cut your tape the length of the corner angle you are going to finish. Apply the joint compound with a 4-inch knife evenly about 2 inches on each side of the angle. Use sufficient  compound  to  embed  the  tape.  Fold  the  tape along the center crease (view A) and firmly press it into the  corner.  Use  enough  pressure  to  squeeze  some compound under the edges. Feather the compound 2 inches from the edge of the tape (view B). When the first coat is dry, apply a second coat. A corner trowel (view C)  is  almost  indispensable  for  taping  comers.  Feather the edges of the compound 1 1/2 inches beyond the first coat. Apply a third coat if necessary, let it dry, and sand it to a smooth surface. Use as little compound as possible at  the  apex  of  the  angle  to  prevent  hairline  cracking. When  molding  is  installed  between  the  wall  and  ceiling intersection, it is not necessary to tape the joint (view D). When finishing an outside corner (fig. 5-1 1), be sure the  corner  bead  is  attached  firmly.  Using  a  4-inch finishing knife, spread the joint compound 3 to 4 inches wide from the nose of the bead, covering the metal edges. When the compound is completely dry, sand lightly and apply a second coat, feathering edges 2 to 3 inches beyond the first coat. A third coat maybe needed, depending on your coverage. Feather the edges of each coat 2 or 3 inches beyond each preceding coat. Corner beads are no problem if you apply compound with care and scrape the excess clean. Nail holes and screw holes usually can be covered in two passes, though shrinkage sometimes necessitates three. A tool that works well for sanding hard-to-reach places is a sanding block on an extension pole; the block has a swivel-head joint. Figure 5-11.—Finishing an outside corner. 5-10







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