Should Ties Be Removed?
My foundation contractor doesn’t think the ties used to hold up the rebar inside of the forms which are now sticking out of the foundation walls need to be removed and in fact he said that they would be useful for holding rigid insulation in place. The ties are roughly two feet apart and there are three levels of them around the perimeter of the foundation. This is a slab foundation, so the ties will be below grade, along with the insulation.
My gut tells me that it’s a bad idea to use the ties to hold the insulation in place. While it’s a lot more work, It makes more logical sense to knock them off, grind them down (as well as the bumps from the pour) so that the insulation can be glued properly to the walls. Also considering weatherproofing the walls, but that may be overkill.
Anyone out there have similar experience?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part