Well it isn't actually the sky, but my shop ceiling is sagging.
Last night my neighbor stopped over so we could trim up a raised panel door I was helping him with. We got to talking about the remodeling job he is in the middle of. He was telling me about some of the poor quality workmanship he had found during the demolition. Since part of my house was made by the same builder we were comparing notes. During the discussion he noted that the beam supporting mny shop ceiling joists was had been spliced together. The span is about 19 feet. They had nailed together a beam made up of 2 X 8's only none of themm were full length. All three of them had been made up of shorter pieces. The three splices were all within the center 8 feet of the beam. As we were examining the beam I noted that the center board had also cracked about 3 feet away from the splice in that board.
It was then that I noted a sag in the beam. When I measured it it was saging about 1-1/2" in the center. There is a storage area above that part of the ceiling where we keep christmas decorations mostlty along with a few other odds and ends. Not tons of weight, but some weight nonetheless. The ceiling joists are all 2 X 8's spanning half the width of the room with an overlap above this beam.
What I am thinking of doing is jacking up the beam to remove the sag plus maybe a little bit more. Then adding an additional 2 X 10 along one side only. To add one on the second side I would have to completely remove half of my suspended ceiling, shortening all the tiles and the supports.
I'd like to replace the entire beam, but that will be considerable work and may cause additional damage leaving the ceiling joists unsupported. Plus I still can't get in a full length beam.
Here's my question. I can sister on another board on one side pretty easily, but I can't make it span the full length because there would be no way to get it in place. If I support it on one end with a cripple stud and make it a few inches shorter than the total span, then screw it and glue it to the existing beams will it provide the needed support or am I just wasting time and wood.
Another option would be to cut strips of 3/4" plywood and glue and screw them to the existing beam and then add the new 2 X 10. Obviosly plywood is only 8 feet long, but has great lateral stiffness. The new 2 X 10 would also be glued and screwed through the plywood into the existing beam. I'm thinking 5/16 X 4" or 5" lag screws with washers so they don't dig in. Or should I run carriage bolts all the way through all the pieces of wood?
No selling the house and moving is not an option.