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pitch on slab PaulS 02-13-2008
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Posted by PaulS on February 13, 2008, 8:11 am
I have a garage plan that calls for a monolithic slab with a 2" pitch
toward the garage door. It looks like the walls are bolted directly to the
slab. My question is, wouldn't that make the whole frame out of level?
How is this normally handled? It is a detatched garage.
Thanks,
Paul



Posted by firewoodguy on February 13, 2008, 8:41 am
Quote: PaulS wrote on Wed, 13 February 2008 07:11
----------------------------------------------------
> I have a garage plan that calls for a monolithic slab with a 2" pitch
> toward the garage door. It looks like the walls are bolted directly to the
> slab. My question is, wouldn't that make the whole frame out of level?
> How is this normally handled? It is a detatched garage.
> Thanks,
> Paul
----------------------------------------------------
Hi Paul, If the walls are being fasten to the slab is a poor policy if the
garage is constructed with wood. The wood sills,base siding and lower parts of
the wood studding will rot fast.
The best way is to have a concrete footing below grade and have the concrete
foundation set on the footing and have the concrete foundation extend above
ground level about 12" or so then have your garage attached and fasten to the
top of the concrete foundation. This will allow you to pour your concrete floor
to have the 2" pitch. I have seen a thick concrete slabs poured level and
install (one)concrete block on top of the slab all around the perimeter of the
size of the garage and attached the gargae to the concrete bolck. Anyway, I
would suggest before you do anything constructive, is to run this past your
local build code department for his recommendations first. Good Luck

Firewoodguy.com


--
Firewoodguy

Posted by Steve on February 13, 2008, 8:53 am
alt.building.construction:

> I have a garage plan that calls for a monolithic slab with a 2"
> pitch toward the garage door. It looks like the walls are bolted
> directly to the slab. My question is, wouldn't that make the whole
> frame out of level? How is this normally handled? It is a detatched
> garage. Thanks,

There should be a level curb around the edge tall enough to get the siding
at least six inches above grade. The sill plate will bolt to the curb.

Suggestion: If you're going to be parking cars in your garage (I know,
it's a strange idea) have the concrete guy put a tire stop about four feet
from the back wall. This is just a raised area that cues you not to drive
into the back wall. If the building is to be used for a shop, keep the
floor flat.

--
Steve B.
New Life Home Improvement

Posted by Glenn on February 13, 2008, 10:16 am
Besides what has been said, 2" is a lot of fall. Put a
car in neutral and leave it and you may find it has
rolled out into the street.


>I have a garage plan that calls for a monolithic slab
>with a 2" pitch toward the garage door. It looks like
>the walls are bolted directly to the slab. My
>question is, wouldn't that make the whole frame out of
>level? How is this normally handled? It is a
>detatched garage.
> Thanks,
> Paul
>


Posted by marson on February 13, 2008, 5:36 pm
> Besides what has been said, 2" is a lot of fall. Put a
> car in neutral and leave it and you may find it has
> rolled out into the street.
>
>
>
> >I have a garage plan that calls for a monolithic slab
> >with a 2" pitch toward the garage door. It looks like
> >the walls are bolted directly to the slab. My
> >question is, wouldn't that make the whole frame out of
> >level? How is this normally handled? It is a
> >detatched garage.
> > Thanks,
> > Paul

I don't necessarily disagree with the above--a row of cmu or a poured
curb is a good thing. But if you are bolting walls directly to the
slab, it will have to be framed so that the top plate is level. Not
that big a deal for a good framer.

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