Repalcing Wod Beams In Attic
Nail a fill strip at the top and bottom of the beam which will bring the trim board to the desired width image 2.
Repalcing wod beams in attic. The beam system we show will work for nearly any opening up to 12 ft. Fastening beams of more than one ply must be fastened together with either nails or bolts. Measure the dimensions of the old rafters beneath your roofing surface. The 2012 irc code calls for a minimum of a 32 o c.
Step 2 determine the extent and area that you intend to repair or replace. Using a pry bar gently pry the beam loose from the ceiling. Pry out nails with a claw hammer or pry bar and remove the cut piece. Measure the length of wood required for the space.
Cut through any nails at the points where the beam is attached to the surrounding framing. The wood should come away quite easily without much force. Attach the trim piece to wrap the beam image 3. Make a cut in the center of the beam while a helper holds the two pieces into place.
Step 3 cut the timber to the desired size and screw into place. Prime spots in the attic for wood rot are on the underside of the roof decking in the joints where the wood members connect at the peak of the roof and at the edges of the attic where the. Expose at least two trusses so that you can nail the replacement wood to them to make the replacement section stable. Cut the wood you ll use to wrap the new beam.
Set the depth of your circular saw to the thickness of the roof decking. Repeat the process for the joist beneath your old roof rafter. Cut away the damaged area. If you are replacing the entire joist you may screw the wood into the opposing top and bottom joists.
Cut a 45 degree angle so the edges will be properly mitered for a clean look. Staggered pattern with at least a 3 x 120 nail. We have learned from our experience to use at least a 3 1 4 x 131 groove shank nail in a column of four every foot apart down the laminate. But your beam could be made from other materials ranging from simple doubled 2x12s for shorter spans to more exotic beams consisting of glued and compressed stranded wood fibers or laminated 2x4s.
Use a circular saw to cut two sets of new rafters from the same size wood by the same dimensions. Replacing a wood beam with steel the lvl beam had been installed in an earlier remodel to replace structural partitions supporting the second floor. If only part of the joist is damaged measure the space where the rotten wood has been removed. Cut the beam out of its resting place using a reciprocating saw.