Originally Posted by shan2themax
OK... so I have gotten out of jacking up the house (because of sagging floors) for months now... My back is now healed..... the weather is getting better..... so, I need to get this done so that I can get going with the 409859847681758124 other projects I seem to be coming up with... lol...
My question is this.... after I dig holes under the house (to put cement for the jacks to stand on).... what kind of cement do I need? can I just use quickrete or something like that? and this will be over an approximate 35 foot span.(longwise of the house)... so how should the jacks be spaced? and ... does the jack need to be put directly under a joist or can it be between 2 joists? ( I know I have to use 4X6 or something similar to put above these jacks) and lastly... once I get it level..... is it safe to leave the jacks or would i be better off using cinderblocks?
You guys are invaluable to me.... I appreciate all the info.... (just wish I could answer a few myself... lol)
and for the kicker.... how am I attatching a 4x6 to the joists? ( I just showed how dumb I can be sometimes)
First you need to determine WHY the floors have sagged. Repair the cause. jacking sagging joists and propping them up will only be a band aid on a broken arm.
Likely culprit is a rotted sill. The joists either sit on or are attached to the sill. Rot is likely caused by water, termites or carpenter ants.
fixing a rotted sill will involve some jacking but also a fair amount of carpentry. The steps are too numerous and too involved to post.
So, determine the cause first and then post back for recommendations. Just jacking and supporting your joists is NOT likely the proper fix.