The problems being the bump created when drywall is attached to standard framing and then finish taped and also the subsequent ridging and cracking of butted seams. Back Blocking (a method of attaching additional framing to support gypsum board where no framing is present) is a proven practice that virtually eliminates the very real problems associated with butted seams in drywall. This may be over or under a window header, over a door header, close to the perimeter of the wall or ceiling, and I often consider placement where the seam will be concealed by an open door or furniture when occupied.ģ) Third I back block all my butted seams with a RockSplicer ™ whenever possible. So sometimes the butted seam can’t be avoided.Ģ) Second I try and locate the butted seams in the least visible (easiest to conceal) location. Ceilings are hung perpendicular to joists of furring so if the room is over 16 ft long perpendicular to the joists then the ceiling will have butted seams.
I do mostly residential jobs where the walls are traditionally hung horizontally, so if a wall is over 16 ft long it will have butted seams. Rooms 16 feet or under should not have any butted seams. This is done by using longer lengths of drywall. This article is about butted seams which I personally have never been able to accept.ġ) My first rule is to try and avoid having any butted seams. The recess allows room for the tape embedded in compound without creating a bump but still drywall contractors who care are even trying to reduce these tapered edge seams The tapered edge seams are designed to be easy to conceal. WHY? Less seams to tape less potential problems. When professionals hang (attach) drywall, they are always thinking of eliminating unnecessary joints.
Similarly, whenever a contractor or other drywall installer cuts a drywall panel, the cut edge is of course un-tapered. The panel ends are cut square and finished smooth with the gypsum core exposed, and are thus un-tapered. The long edges of drywall panels are tapered slightly to accommodate joint tape and compound. Drywall panels are typically produced in lengths up to 16-ft and standard widths of 48 and 54 inches.
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