I had a "contractor" pour a slab for my steel garage install last Nov. After it was poured and set I saw that the slab angled down on one side. It became more apparent when the garage was erected 2 days ago and I have a 3" drop from the right to left side on 1 of 2 doors. It's a steady drop so I need a way to seal the bottom with the electric door down. Should I try adding some cement to raise the low point and blend it to the right side. I'm a senior and don't want a hump I might trip on some night since I live alone. The garage is detached. Is there any type of poly or rubber strip with an angle to it I can put in the bottom of the door to make up the gap? Or, do I need to get as close as possible with the door and use a bigger sweep for bugs and rodents? The installer said it was 3.5 inches at it's lowest point and the door contractor said he could still make the doors work. I need to know if he's just saying that for the sale or if he is right. I'm trying to find all options before I spend any more money. Thanks, guys! I appreciate any advice I can get.
