I need to lift an end joist slightly to get the mudsill loose and am unsure of how to do the shoring and/or lifting.
The roof load is bearing on it, but it is not a huge roof. It is holding about 7 feet of roof, and the exterior wall.
If it was a rim joist, I could simply put shoring under the floor joists nearby, and lift.
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Replies
Too many variables to answer yet.
Can you post pictures of the situation and mention what your skill and experience is?
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Ok, here is a picture.The problem is the sill is resting on 2-2x4 blocks spaced about 2-3 feet. I need to lift the sill slightly to remove blocks and add doubled up sill plates underneath existing sill plate.The wood behind blocks is sheathing and not the end joist.My experience is not great, but willing to take it easy and slow. Asking questions is why I joined this website.
That makes things downright easy! I would tackle that the old fashioned way the Pharoh's slaves did it!drive shim wedges in between those two by four pairs. as it goes in further and further, it will lift the house. Rip some nice oak ones that will take the pounding. Cedar will be all shattered before you get far enough. you will place the new plates in short segments that lap like brick in a running bond pattern and glue them to the crete and each other to hold. I would use PT for the one in contact with the crete. PL Premium for the adhesive.When driving the shims, move from one pair of 2x to the next gaining a little each position, then start back at beginning again untill you have it high enough to have a bit of slack to fit the new lumber in. Then pick a strategic position to start inserting the new and work out from there. knocking the shims and tw by out as it gets in your way.
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Wedges used for timber falling are great for this application. Just thought I would toss that in.
They can't get your Goat if you don't tell them where it is hidden.
The closest thing I've seen to something like that was cut shims from a 2x4 to wedge up a beam that ran the length of a crawlspace. I think you have a rather unique situation on your hands there.
This house is nothing but unique. Apparently, it has been sitting like that for close to 30 years. I can't fully understand why they did it in the first place, not to mention the 4 inches of subfloor... According to the previous owner/contractor I tracked down who apparently was sleeping with the inspector, it was to raise a glulam out of a beam pocket because the glulam was not treated and in contact with the concrete. But 3 inches?