You need to make sure that you thoroughly cleaned the garage door and the floor area of the garage where the dorm meets the floor.
How to replace garage door seal.
Thread the t shaped edges into the weather seal track then slide the seal across the door.
Allow the area to dry completely before continuing.
Use a good quality degreasing soap and warm water to scrub the area and make sure that is free of dirt and debris that might hamper the door seal kit installation.
This should go one inch beyond the door ends.
How to replace bottom weather seal on your garage door.
If you have a wooden garage door rip off the nailed rubber seal.
Try and make use of the existing screw holes that are there.
Put the seal in with the help of screws that are evenly spaced out.
Determine what style of seal it is.
Place one side of the seal near the end of the garage door and the other end of the seal near the other end of the garage door.
Measure the bottom seal take the piece of seal you cut and use a measuring tape or ruler to get some measurements.
Be patient it takes a lot of pushing and pulling even with a helper.
Measure the width of the seal as it lays flat.