3

I have 5 roof support posts that are supposed to be resting on concrete blocks but one of them is not even touching the concrete block and the other 4 have some separation from the concrete block. See pics for details. Seems like the ground has settled or something has happened to the house structure causing this separation. I'm not sure what to do about this. Does anyone have advice? On what I should do to solve this problem? Thanks for any help!

First Post Not resting on anything Beam1 (Not Touching Concrete Block!)

Other Posts in order of 2 - 5 and how they are sitting on concrete blocks. Notice separations. Post2 Post3 Post4 Post5

Here's another picture showing how the posts are used. Posts

  • What are these beams supporting ? It looks like an outdoor porch roof. These beams may not be there for support if the roof above is cantilevered into the house structure. en.wikipedia.org/wiki/Cantilever That means that these do not really do anything other than to look good (when kept in good condition. Try to post more pics of the above structure. Also if the above beams are showing you should be able to see if they are cantilevered. – deathismyfriend May 26 '14 at 23:40
  • It's also possible, given how small the gap is, that either (a) the concrete blocks were not properly anchored and have subsided a bit, or (b) their height was set when these beams were carrying much more weight, and either settling or changes in the floor loading have let these posts lift up a bit. There's probably some appropriate form of shim that could be used to fill this gap and properly support the load again... – keshlam May 27 '14 at 1:08
  • Do you live where it snows abundantly? Looks like auxiliary weight support for an extended roof overhang so the rafters don't take the brunt of the load. Tapered shim wedges can be used to take up the slack. – Fiasco Labs May 27 '14 at 1:31
  • 1
    You need to supprt at least the weight of that beam hanging off the underside of the rafters, it has considerable weight. the shims will do it. – Fiasco Labs May 27 '14 at 14:33
  • 1
    Shims will work until they either rot or get kicked. I would go with non-shrink (or hydraulic) grout. This is what they do for large high rises to fill in the gap when the Steel doesn't quite meet the concrete.(quikrete.com/productlines/FastSetNonShrinkGrout.asp) – Matt Johnson Aug 24 '14 at 3:13
1

What you need to do is get a couple of hours of a residential truss engineers time.

Ask him if the posts are designed, or should be structural load bearing components of the frame, or just look pretty?

If they are supposed to hold up your house, below frost line footings and fiberglass posts are in your future.

If they are just to be pretty, then shims and hydraulic cement are all you need, and then replace with fiberglass pieces as time and money allow.

Fiberglass posts, columns are great, lightweight, any shape you want, load bearing or not, stay straight, no rot, no bugs, take paint so well.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.