Storm Shield® 10 ft Garage Door Seal Threshold Strip - Durable PVC Rubber Seal Strip - Flame Resistant, Weatherproofing Garage Door Installation - Epoxy Adhesive - Made in The USA

I exaggerate only slightly. I recently converted my carport to a garage with an overhead door. There were a couple of issues with this. First, the carport slab had no little step down at the overhead door line, as most slabs poured for a garage would have. Second, the slab had a slope built into it from side to side, so it was 1 1/2" higher on the left side of the door than on the right.I talked to the manufacturer of the door about the slope issue. They said that the door had to be installed level, not parallel to the slab. To fill the gap on the right side of the door, they advised me to stuff the right end of the U shaped gasket on the bottom of the door something like a slice of a pool noodle to compensate for the slope. I did my best to a cut a tapered wedge out of the noodle about 6 feet long and pushed it into the gasket. It did look pretty good. I could see just a sliver of light under the far right end of the door, but other than that, it seemed to fill the gap.The next day, we had 2" of rain and water flowed under the door along almost the entire length and there was a torrent on the right side, between the door and wall. I looked outside to see what was going on and saw that the rain pouring off the roof and falling in front of the door was ponding almost an inch deep along the whole length of the door. Part of the trouble was the slab itself. Because it was not exactly as smooth as glass, the seal really couldn't do its job. I live in South Florida and torrential rainfall is a common occurrence in the summer months. I had visions of my newly created garage workshop flooding several times a week.In a panic, I did a search and found the Storm Shield Garage Door Threshold. It looked like it might help, so I ordered it immediately. My door is 12' - 2" wide and the 16' threshold I ordered measured just over 17'. I cut it to length and installed it according to the instructions. The 2 tubes of liquid nails that came with it were just enough to make the beads described in the instructions. If you have a 16' door, I recommend that you pick up an extra tube of liquid nails, just to be sure you don't run out. In addition to the liquid nails, I ran a bead of silicone caulk along the edge of the threshold to seal it. I also cut up some pieces of leftover threshold and made a dam at each end of the threshold, blocking the space between the threshold and the wall, and caulking the spaces as needed.Since I installed it, there have been a number of downpours, but not a drop has entered the garage. I am so happy!

I bought two of these from Amazon this past summer. My goal was to stop snow melt from cars forming under the garage door and then freezing. Not only was the garage door freezing shut, but in trying to get it opened, the weather seal was being destroyed. I only installed one of these to try initially. No sense installing both in case they turned out to be duds. Although we have not had any super cold weather yet, this item seems to holding up just fine and has really improved the door bottom seal. I coupled it with a metal L-shaped strip on the bottom or the garage door which accepts a U-shaped rubber seal (got both at a local garage door company so cheap it was almost free). The combination of the new threshold and the door bottom seal has given me the best seal I've had in 30 years. Almost no light is visible anywhere from outside so there are no significant gaps.I feared it would be difficult to sweep out my garage over the threshold but that was not the case and dirt sweeps easily out over the hump. My satisfaction may change with time but so far I am very impressed and satisfied with my new garage door seal. And in interior Alaska, a good garage door seal is no small consideration.Before buying, I read many reviews and all the complaints about the adhesive for this threshold being so difficult to use. When my order arrived I was pleasantly surprised to find that a caulking tube of adhesive was included. When I opened the box, however, I found just a squeeze tube. So I sent a complaint email to the company and very quickly got a telephone reply. The very pleasant gentleman explained the box was not correctly marked. Wide door thresholds get a caulking tube but the 9 foot size I had came with a squeeze tube. He explained it was not near as bad as folks had stated and that I should most definitely not use Liquid Nails and explained why. He gave me thorough instructions for the complete installation and answered all my questions completely. He further explained that although this was a fairly new product to the home market, this threshold has been used in commercial applications for many years and was a very proven product. I followed his instructions and had absolutely no problems, but the adhesive tube was tough to squeeze near the end and I would much have preferred something in a caulking gun. I survived the experience but a person with arthritis would have a difficult time. The company should change to a caulking gun tube. Something half the length of a normal caulking tube would be perfect.I'll be anxious for the warm weather next summer to install the remaining threshold and believe my decision to purchase these was a good one.

Here in Western Oregon winters are usually quite wet. The garage where I store building supplies has a slight dip in the concrete. The seal on the bottom of the garage door appear to squish down, but every time it has rained I get big puddles inside and a lot of soggy building materials. I saw these thresholds by various manufacturers and thought why not let one door, out of three, have a try to fix the problem. Checking out every one that was available this became my first choice, but I was ready to move along if it didn't work well.When it arrived it felt heavy and like it could stand up to tire traffic. It also was long enough to span the opening, but not a whole lot of extra. I was concerned that the raised portion might mess up the door closer, but that concern disappeared when I rolled it down and closed the door. The threshold fit nicely into the raised center portion of the bottom of the garage door. Since more rain was on the way and I wasn't going to be driving over it I just left it unglued. Following two days of rain there was a trickle of water that made it 6" inside of the door. Things have gone so well I still have not glued it down after at least four months, and I now have ordered more for the other two doors. I was skeptical, but it is high-quality rubber and sits very flat on the floor. Well worth the money.Update: After more than 3 years I still have not glued any of them down and even our most severe rainstorms have generated just a very small puddle less than 1' into the garage. Completely satisfied. Good investment and no soggy building materials. You do have to have some weatherstipping on the sides of the doors or water simply will travel in the sides and down to the bottom.