In the third and final part of this series on installing a tongue-and-groove ceiling, you will attach the final boards to the ceiling, reattach the ceiling fixtures, and replace the crown molding and trim. (To return to Part 2, click here.)
Attach the Final Tongue-and-Groove Boards
The final section of planks should end up being 1/4 inch from the inside edge of your ceiling, just as it began 1/4 inch from the exterior wall. If the final few boards are too wide, use the miter saw to cut them down to the correct width. Affix them to the furring strips and to the outer perimeter strip on the inner ceiling edge. Hammer in the nails or staples at an angle of 45 degrees, so they are not visible at the surface.
Reattach Crown Molding and Trim
Dust and wash the crown molding and trim before reinstalling it. Carefully return the crown molding to its original location and make sure you cover the very edge of the tongue-and-groove ceiling to conceal its raw edges. Use new finishing nails to reattach the molding and trim, and countersink these nails so they are not visible from below the ceiling.
Replace Lighting Fixtures, Ceiling Fans, and Other Attachments
Replace the light fixtures and other ceiling attachments you removed to put up the ceiling. Test them afterward to make sure they still work.