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DrewTheEngineer
LSU Fan
Baton Rouge (Oak Hills)
Member since Jun 2006
838 posts

Seeking contractor recommendations in BR for house addition

Older house, single story. Looking to add on small second story above carport (@500 sq. ft.) Have some architectural renderings to start with, but will probably get a full construction package drawn up.

Thanks in advance ....
This post was edited on 12/20 at 6:02 pm


SouthernInsanity
LSU Fan
If i was in your arse you'd know it!
Member since Nov 2012
12012 posts

No help... but I'll be interested to see some recommendations.


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junkfunky
LSU Fan
Member since Jan 2011
31444 posts

You're expecting to have to tear down the carport?


redfish99
LSU Fan
B.R.
Member since Aug 2007
14270 posts

G&B Specialties. Do good work and communicate well .


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DrewTheEngineer
LSU Fan
Baton Rouge (Oak Hills)
Member since Jun 2006
838 posts

quote:

You're expecting to have to tear down the carport?


The architect thinks that we can just go on top of the existing carport.


cajuns td
LA-Lafayette Fan
Prairieville
Member since Jun 2019
135 posts

quote:

The architect thinks that we can just go on top of the existing carport.


You may want to get a civil engineer involved and make sure you have the footing you need for another level.


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junkfunky
LSU Fan
Member since Jan 2011
31444 posts

quote:

The architect thinks that we can just go on top of the existing carport.


You're going to be adding at least 20 psf dead load (higher at the perimeter but lower in the field) and 40 psf of live load. If the existing structure is even capable of supporting the additional weight that load eventually goes to the columns and down to the foundation which was not built for it.


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MikeBRLA
LSU Fan
Baton Rouge
Member since Jun 2005
14837 posts

quote:

The architect thinks that we can just go on top of the existing carport.


What is he basing this off of? When I originally read this thread a few days ago the first thing I thought of is that unless this house was designated and built originally with this addition in mind, then you are going to have structural issues.

As others have mentioned, your foundation simply wasn’t designed for all this additional load more than likely. This is especially true with the soft soil we have here.


DrewTheEngineer
LSU Fan
Baton Rouge (Oak Hills)
Member since Jun 2006
838 posts

My terminology might not be correct here ... but he believes that can do something to "underpin" the slab from underneath it? ... I believe he is working with a civil engineer.


Unobtanium
LSU Fan
Baton Rouge
Member since Nov 2009
1255 posts

I would challenge any assumptions by your architect or civil engineer unless they have hard data (drawings, scans, actual measurements, etc.) on the dimensions of your existing slab.

Depending on what part of Oak Hills you're in (relates to the age of the house), your slab may have been overbuilt, but without some firm data ("concrete evidence" if you will), I would not proceed on assumptions.


DrewTheEngineer
LSU Fan
Baton Rouge (Oak Hills)
Member since Jun 2006
838 posts

quote:

Depending on what part of Oak Hills you're in (relates to the age of the house),


Built in 1959


Unobtanium
LSU Fan
Baton Rouge
Member since Nov 2009
1255 posts

I know the area well. Houses from that era were made to last.

Any chance you have the original house plans?


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DrewTheEngineer
LSU Fan
Baton Rouge (Oak Hills)
Member since Jun 2006
838 posts

Thanks for all the advice regarding the foundation ... So, any more contractor rec's? :)


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