I know there will be some negative reactions to this but I did find an easy solution to the problem.
The situation in my case is caused by drippage from the car and truck collecting at the door seal lip, which tends to form a dam. I can sometimes have 1/4" of water pooled up there. When it freezes, it sticks to the seal and I've had the seals rip off a few times (I have a 3 door garage).
I always had put the seal on so that the lip is outward (looks nice and architecturally correct). I'm sure a building inspector would give me a permission slip to live there after seeing my beautiful installs.
However, with the seal lip outward (presumably to keep water from coming IN), it tends to trap water trying to go OUT.
So, when I put the seals on BACKWARDS, the water still gets trapped, but not under the door. No more door frozen to the door sill. Now, the seal lip is inside. From outside, you can see the cushion part of the seal. No complaints from the war department yet...