I have tenants of the reptilian nature who are not paying rent, I might add. They're coming in through the garage doors. Went to big box stores & Ace locally but apparently, I've got the only weather stripping with one track instead of two...Anyone know where I can get something heavy duty similar to mine? Also...I have a large gap that runs from one corner of the garage door across the top to other corner and wondering what I can do there? Thanks!