A New Entrance Door in Existing Building
A New Entrance Door in Existing Building
(OP)
An Architect wants to place a new door in an existing building that has an earth berm with a foundation just under the existing floor. I pointed out to him that this could get expensive with the cost of underpinning down to frost for the existing footing. Another aspect that makes it interesting is that we are in granular material.
We talked about using insulation but I am not totally convinced that the insulation will cover all paths of frost potentially getting below the footing.
Another thought was to install helical anchors down to below frost level but it still may be possible for frost to push up on the bottom of the footing unless it was underpinned.
Any other ideas?
We talked about using insulation but I am not totally convinced that the insulation will cover all paths of frost potentially getting below the footing.
Another thought was to install helical anchors down to below frost level but it still may be possible for frost to push up on the bottom of the footing unless it was underpinned.
Any other ideas?





RE: A New Entrance Door in Existing Building
RE: A New Entrance Door in Existing Building
RE: A New Entrance Door in Existing Building
RE: A New Entrance Door in Existing Building
It has a good quanity of silt (which is subject to heaving). It is certainly not practical to try to excavate under an existing footing in granular material and then try to replace it.
RE: A New Entrance Door in Existing Building
RE: A New Entrance Door in Existing Building
So, just how big is this door? What type of wall is it? What is the current load per LF along the wall. Without this info, I don't see how anyone can make recommendations.