My shop is 30x36 slab with one run of cinder block around the perimeter. The sides of the garage foundation are in rough shape. I'm thinking about replacing one side of cinder block at a time by building a temporary wall tight to the floor and rafter ties to support the wall minus foundation. Then I'd knock all the block out and lay some new block in place. Does anyone have any tips or see anything wrong with doing this myself? Any help or insight is appreciated.
Cinder block foundation replacement?
- Thread starter coppah37
- Start date
kd3pc
Well-known member
what is rough shape about the foundation??? Are they crumbling, no longer support the load, etc?? What is the garage construciton?
If not failing, I would parge the block and paint.
This will not be a trivial exercise.
If not failing, I would parge the block and paint.
This will not be a trivial exercise.
finn
Well-known member
Parge and paint.
I did that on a cottage with water damaged block. Tarred the outside below the dirt line, but haven't got around to the painting yet. Use the latex additive with the masonry cement. It toughens the product and makes it easier to work with.
I did that on a cottage with water damaged block. Tarred the outside below the dirt line, but haven't got around to the painting yet. Use the latex additive with the masonry cement. It toughens the product and makes it easier to work with.
Construction is standard gabled roof with rafters not trusses. Walls are 24" on center rough cut lumber. Garage was built probably in the 50s-60s I'd say. Exterior is barn board type siding. It sheathing. Walls are insulated everything wired up and mostly dry walled but no mud or anything. I did that in case I ever wanted or needed to get in the wall I could just remove sheets of drywall with a drill in minutes. Sill plate is also rough cut non PT. Sill seems solid in 90% of the garage.
By rough shape I have some broken blocks in the middle of the run. A lot of joints have mortar coming out. When it rains water seeps under a lot of the blocks in spots.
Leaflessshadetree
Well-known member
Replace the broken blocks. Chip out loose mortar and is that expanding foam? Replace with new mortar.
TractorJeff
Well-known member
4x4's on jacks with a 4x4 on top against the ceiling joists would lift one side at a time.
A guy on here put a couple of good size timbers in his garage. Attached them to the walls and lifted the whole thing on 4 bottle jacks. Cribbed it, jacked it higher. Cribbed it again so as not to depend on the bottle jacks.
I say go ahead and do it!
A guy on here put a couple of good size timbers in his garage. Attached them to the walls and lifted the whole thing on 4 bottle jacks. Cribbed it, jacked it higher. Cribbed it again so as not to depend on the bottle jacks.
I say go ahead and do it!
Cinder block (CMU) is not expected to be waterproof. Water is coming in because of inadequate drainage. You will need to slope the perimeter away from the foundation and perhaps run a curtain drain / french drain to direct water away from your foundation. Do you have gutters and if so are they directed away from the foundation or do they dump water next to it? Your current blocks are likely fine. You can repoint the mortar and parge it for cosmetics however even if you rebuilt the block foundation, water would likely still come in unless you fix the drainage.
Falcon67
Well-known member
Should be no problem lifting one wall at a time.
http://www.garagejournal.com/forum/showthread.php?t=41042&highlight=shed
http://www.garagejournal.com/forum/showthread.php?t=41042&highlight=shed
