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Old 05-28-2011, 09:26 PM   #1
central1ny
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Default Attach pole building to a house?

I am researching different methods of construction in preparation for a new garage. I like the idea of using socket systems to build a pole barn type garage but want to attach the garage to my house. Has anyone attached a pole building to a house before and if so, are there any special considerations? How would the foundation be constructed for the socket systems type pole barn attached to a house?
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Old 05-29-2011, 06:44 PM   #2
kbs2244
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Default Re: Attach pole building to a house?

The problem with this idea is frost heave.
Where do you live?

This is the classic reason the “breeze way” was invented in regions with heavy frost.
It allowed a “floating slab” garage to be somewhat attached to a below the frost line foundation house.

A floating slab garage can move inches in comparison to a below the frost line house, but still maintain it’s integrity.

But you need something somewhat flexible in between.
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Old 05-29-2011, 07:00 PM   #3
bczygan
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Default Re: Attach pole building to a house?

I never like a rigid joint between two different construction or foundation methods. You get differential movement and cracking at t he joint. Slab on grade for the garage and adjacent basement for the house is the classic example. Mine, built in 41' has cracking. Some kind of joint that moves is the key if you must butt them up to each other.
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Old 05-30-2011, 01:57 PM   #4
central1ny
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Default Re: Attach pole building to a house?

Quote:
Originally Posted by kbs2244 View Post
The problem with this idea is frost heave.
Where do you live?.
I live in central New York where the frost line is 42" below grade. Maybe I am not using the correct terminology with "breezeway". What I mean by this is a 8x16 addition that is connected between the gable end of the house and the garage. If the foundation holes for the pole building go down to the frost line, is the issue with frost heave addressed or would there still be some slab movement if the whole slab it not sitting on a foundation that extends below the frost line?
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Old 05-30-2011, 06:41 PM   #5
trbomax
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Default Re: Attach pole building to a house?

You should check with the building dept with this. In MI and OH if you attach a structure to a dwelling ,the new part must have a code compliant footing that in some way is keyed to the dwelling footing. In toledo we built a pole structure that was attached to the house,but it had a residential footing that was pinned w/rebar to the house footing. The posts were set in sockets on the footer. Looking back,it was never a problem and never shifted,but in the end it would have cost about the same to stick frame it.I would think that posts set below frost would be ok if your slab had a 18" or so rat wall with rebar that is attached mechanically to the posts,but the zoneing people may have a different oppinion.

edit) I fabbed the sockets with about a 12" x 12" base plate and the sockets welded up useing 1/4 x 6 plate. This was para bolted to the footing. The sockets were 12" deep,not the flimsy ones you buy that are castings.

Last edited by trbomax; 05-30-2011 at 06:45 PM.
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