[annabelle5]

I have 3 cylinder columns supporting my porch/roof in front of my house, not sure if they all extend down to my foundation. I am looking to box in them in. 2 of the columns sit in my concrete driveway. Problem is the concrete moves up and down with the changing weather. I'm having a new driveway poured, and was told if the concrete immediately around the column is poured down to my foundation (as a seperate piece), that piece of concrete would not move. Is that necessary, or is there another approach? Thanks.

 

[Just Bill]

Foundations, or things sitting on foundations do not move since they are below the frost line. Sidewalks, driveways, etc., do. They move up/down with seasonal changes. The two should not be connected. There should be something to isolate the two so the moveable will move. The posts should be on a foundation.

 

[stadry]

that's why there's isolation joint material for us to buy :thumbup: