Originally Posted by BritInVA
You got some more details on your threshold (pics)......its one of the things I need to do also.
My doors were installed a little higher off the ground that I should have put them in so I added a strip of 1/2" plywood to shrink the gap down to approx 1/2" or a little under which was the perfect fit for the weather stripping i found.
In the first pic you can see the threshold that is under the door from the bar area. I was originally planning on putting some type of additional threshold in so that it would protrude inside the room by less than an inch and provide a good seal for surface mounted drop seals on the theater side of the door. That's when I found the "hidden" weather stripping that mounts under the door at lowes.
The second pic shows the bottom of a door with the strip attached (door open)
The last pic shows one of the doors closed producing a nice tight seal.
The product I used was basically an aluminum track with a rubber strip that slides in. I cut the track to length, cut the plywood spacer the same size at the track, took the door off, screwed the strip to the door bottom, put the door back on. I also put caulk between the plywood and door, and between the plywood and alum track.
When I was at lowes I noticed another side mound (vs bottom mount) product that had a slightly different gasket with fins protruding from a round tube rather than just a round tube that slides into the track. The fins version was slightly taller and would fit the track of the first so I bought both. Since the slab below the door was not perfectly level I ended up using the round tube stripping on one door and swapping the rubber strip with the fins onto the second door to make sure I had a good seal along a high spot. I did use a razor knife to slightly shave down the fins along an 8" strip of the door so that the seal was tight, but didn't make the door hard to open and close.
The next post has a pic of the two different strips.