When we signed off on our new house there were hairline cracks in the concrete floor of the garage. They were explaned as expansion cracks BUT there was a pattern to them.
The garage is ~24 wide and the the two most noticable ones were running parallel to each other, and the house, from the double garage door to the back of the garage, dividing the garage into three parts.
Over the past year these 'expansion cracks' have widened, spread like a spider web, and new ones appeared. In areas I can feel where one side of the crack is higher than the other. This is found toward the center of the garage.
Tilson Homes has specs in their contract defining a crack, I think they ignore anything under 1/8" wide.
I was told that if I had their engineer out he would ignore anything that did not cause doors or windows to drag or hang up.
A Tilson employee told me that 'he' can't figure out why he sees so many cracks in their garage floors and not many in their houses.
Of all of the steel work on the slab the garage was the place I thought would never give problems with cracks. The attached garage is that, attached and not part of the main box structure of the house so I assume there is a greater probablility that that portion can move. BTW - yes, clay soil and was pored during a 3 month drought and the beams were not flooded prior to poring.
** When does an expansion crack graduate into a crack in a slab?
Okay I have a garage splitting into three parts with two main cracks doing the seperating.
Any concrete/foundation experts on the board?
I am attempting to do a little research before I call the engineer out.
Thanks for your comments on my problem. Or is it a problem?
Gus
The garage is ~24 wide and the the two most noticable ones were running parallel to each other, and the house, from the double garage door to the back of the garage, dividing the garage into three parts.
Over the past year these 'expansion cracks' have widened, spread like a spider web, and new ones appeared. In areas I can feel where one side of the crack is higher than the other. This is found toward the center of the garage.
Tilson Homes has specs in their contract defining a crack, I think they ignore anything under 1/8" wide.
I was told that if I had their engineer out he would ignore anything that did not cause doors or windows to drag or hang up.
A Tilson employee told me that 'he' can't figure out why he sees so many cracks in their garage floors and not many in their houses.
Of all of the steel work on the slab the garage was the place I thought would never give problems with cracks. The attached garage is that, attached and not part of the main box structure of the house so I assume there is a greater probablility that that portion can move. BTW - yes, clay soil and was pored during a 3 month drought and the beams were not flooded prior to poring.
** When does an expansion crack graduate into a crack in a slab?
Okay I have a garage splitting into three parts with two main cracks doing the seperating.
Any concrete/foundation experts on the board?
I am attempting to do a little research before I call the engineer out.
Thanks for your comments on my problem. Or is it a problem?
Gus