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-   -   Sunroom cement support columns (http://www.diychatroom.com/f105/sunroom-cement-support-columns-157820/)

Kennjan2012 09-24-2012 08:56 AM

Sunroom cement support columns
 
Hi everyone! This is my first post so I hope I do this right! We are having a sunroom put on our house by a major well known contractor. However sub contractors......we need to know proper way to put in supporting columns
By plans they put 3 ft deep cement columns into ground with pressure posts slightly into..
(during rainy day). A week later started to sink 2 weeks more about 1 1 /2 inches and all dirt around gone
What is proper way to raise sunroom posts?

Ps sunroom is off level now and windows and doors do not close properly. Inspector said tell contractors to raise posts. But I want them to do it properly!

user1007 09-24-2012 09:50 AM

Are you saying they poured footings and partially anchored the posts in the concrete as it cured? In essence they are now sitting in a pocket?

Kennjan2012 09-24-2012 11:42 AM

Sunroom cement support columns
 
No they are inside cement about 6 inches. But they added cement after sunroom built on temporary supports

GBrackins 09-24-2012 03:14 PM

could you post a few photos? would certainly aid in seeing the problem and getting useful suggestions ....

PaliBob 09-24-2012 03:54 PM

Here' how to Post pictures see Posting Pictures

Rocket98 09-24-2012 05:23 PM

It sounds like the pier's were installed in the ground that did not have proper compaction. Your compaction should be 95% of existing soils. They should have used an embedded post connector in the pier. You say that the pier or footing was about 3'. What was the diameter and the depth.

GBrackins 09-24-2012 06:15 PM

either that or per the building code should have extended to undisturbed soil having the proper soil bearing capacity for the load imposed by the column. 36" may have been the minimum depth for frost protection, you have to go the deeper of the two.

when a few photos are posted we'll have a better idea.

jomama45 09-24-2012 09:19 PM

It happens all the time (even to me in the past :eek:), all the disturbed soil has to be removed from the hole, and they have to be tamped before pouring or they WILL settle. Not sure how to deal with it now, but this is typically a good place to use NS grout between the pier & base plate........

Kennjan2012 09-25-2012 08:34 AM

Sunroom cement support columns
 
Trying to upload photo from same iPod touch I am using with DIY. Stuck at how to get photo from photos


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