Tilt the top of the sliding door out far enough to clear the frame.
Stop sliding door drafts.
How to stop door drafts around entry doors remove the door then replace all weather seals.
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Cut the new weather stripping to length and reinstall it.
Placing a rug in front of the door.
Attach new weather stripping.
Weatherstripping stops drafts cold unscrew and remove the header.
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Shop for door draft stoppers in door weatherproofing.
Then lift the door up and off the.
Open the patio door so the sliding door is in front of the stationary section.
Use a caulking gun to insert foam insulation into the upper frame of the sliding doors without impeding the sliding.
Things you will need apply weather strips to the inside and outside of the door jamb where the door slides to latch.