I want to match my exisiting garage and will want a 10 - 11fft ceiling height for my 4 post lift. I could use your help and opinion on review of my foundation plan. I live in North Carolina and slab on grade is common here. I'm getting ready to build my garage and foundation time is near. They do present a bit more difficulty, and a bit more cost, but are worth it in peace of mind. Interior, you now have to paint/treat it to match if you want a uniform look.Īll in all I think these are an excellent idea, primarily used to prevent water from getting into the wood wall. If you insulate, you now have to insulate the block/stem wallĥ. a bit tougher to get utilities into the wall as they have to be located exactly in the middle of the wallĤ. It's a bit tougher, as far as banging brooms/mops/casters into it compared to drywall.ģ. By having a stem wall, you get a little boost in wall height.Ģ. If either is the case, or you expect them to be the case, having this extension (or a row of block) would be advisable.ġ. If you have a flat slab or a poorly made slab, then water could hang out at the perimeter. If you have a good slope inside then water will run away from the wall. Second would be water from the inside of the garage migrating into the wall. If the siding extends down, or there is another membrane (insulation, aluminium, other) that bridges between the siding and slab, all the better. If you have a wall that has poor exterior covering where the bottom plate of the wall is, it'd be possible for water to migrate in. Keep in mind any snow melt water if you live in a snowy area.Īlso, a factor would be how well the ouside is covered. If you have good top of concrete elevation, then water migration in from the outside isn't an issue. This is definitely a "Nice To Have" in most cases.įirst thing, I'd make sure the top of concrete is WELL above local grade. As mentioned, In my opinion, this extension is to provide elevation for wood walls so their not sitting directly on the slab exposed to moisture.
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