sliding-glass-door
I installed a sliding glass door recently and recently noticed this.
There seems to be a hole in the bottom small portion of the door between the sliding door and the static portion of the door. This leads right into the house and creates a huge space for air and other things to get in. What would be the best solution to fix this? I have called the manufacturer but it will take a while for them to get back.
We had this issue on the kitchen sliding glass door at work. A hand truck had been run fully loaded over the threshold several times in its life and the Channel Lock treatment given to attempt putting the track back in line.
Our local glass shop repaired it without removing the frame as the door was a custom piece with no readily available replacement and would have been prohibitively expensive to do so.
Basically, you take a rivet buster chisel and die grinder and remove the track. You then use a die grinder burr to smooth the surface. There are replacement tracks (has to match the old one) that will now lay in the slot. Finish out by fixing in place with self tapping screws, replace the rollers on the screen door and adjust the rollers to proper height.
It now rolls just like new.
Ok, here's one manufacturer (no affiliation with any). Prime-Line Products has a cap strip like Mike was considering and they also have an actual track replacement extrusion which is what I have experience with. You'll find both repair products listed under Exterior Door Hardware for Residential Sliding Patio Doors. They also carry rollers and assemblies.
Another manufacturer that makes both cap strips and track extrusions is Swisco
If the 2 door panel in the middle overlay each other completely, you can pilot holes through the first panel for the screw to slip through and a smaller pilot hole in the outside panel for the screw to tap into. Only drill where the metal is hollow. The glass only goes into the metal no more than 3/4" so there should be plenty to drill into so the drill does not hit the glass.
Best Answer
Normally on the rear of the sliding portion of the door is a flap that engages at the last moment as the door closes. That may cover your gap. If you don't have one, you can add it (search for "sliding door draft stopper").
But looks like you could cut a block of wood to fit the gap (or, fancy, 3D print it). The strip insulation is available at most hardware stores.
But really, this looks like a manufacturing defect, not even an install defect.