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-   -   Attaching garage to house (http://www.diychatroom.com/f2/attaching-garage-house-39140/)

eric haley 02-25-2009 11:16 AM

Attaching garage to house
 
I am in the process of building a 20 x 22 attached garage to house. The foundation for house is 8' high with a step-down to 4'. I realize I have to have an 8' concrete wall on the front and other two sides of the garage, however, the side where the garage attaches to the house, do i need a concrete wall where the 4' level is or can i use pressure treated plywood with polybead insulation attached. I do not think there will be much pressure on this wall from the soil used to fill in the inside of garage. Any information on this matter would be appreciated -- and if anyone has constructed a garage to house using this method.???

Willie T 02-25-2009 11:20 AM

First thing, check your local building codes for the fire rating required for a garage-to-living area partition wall. You will be required to meet this standard with any type wall you choose to build.

P.S. Did you mean to use " marks instead of ' marks?

Termite 02-25-2009 11:31 PM

You really need a structural engineer to determine this for you.

The foundation of the house where the garage abuts might be able to support the loads currently imposed but might be inadequate to support the new garage slab as well as the roof load. If you're increasing the amount of fill that is currently against the wall, there could also be a problem. Then again, it might be perfectly fine. No way for us to determine that online.

I have no idea what you mean when you talk about pressure treated plywood and polybead insulation...Do you mean below grade?

Scuba_Dave 02-25-2009 11:38 PM

You want top use PT plywood to hold back soil?

Doesn't sound like a good idea to me

eric haley 02-26-2009 06:10 AM

Quote:

Originally Posted by eric haley (Post 236495)
I am in the process of building a 20 x 22 attached garage to house. The foundation for house is 8' high with a step-down to 4'. I realize I have to have an 8' concrete wall on the front and other two sides of the garage, however, the side where the garage attaches to the house, do i need a concrete wall where the 4' level is or can i use pressure treated plywood with polybead insulation attached. I do not think there will be much pressure on this wall from the soil used to fill in the inside of garage. Any information on this matter would be appreciated -- and if anyone has constructed a garage to house using this method.???

The 4 ft. level is below grade.

Termite 02-26-2009 08:38 AM

That doesn't answer the questions...

Any chance you can post a picture or a section view of the plan?


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