Caulk around the edges of the sliding glass doors.
How to keep from losing heat from sliding glass doors.
If rocks gravel and clumps of dirt have fallen into the threshold the door may not be set correctly on the track.
How to insulate sliding glass doors.
This allows cold air in or air conditioned air out.
Glass doors are beautiful but can pose a problem with the overall comfort of the room they are in as sunlight enters your home the glass doors can trap the light and convert it to heat.
Dirt gravel or other debris may prevent the door from sliding and sealing optimally.
Department of energy sliding glass patio doors tend to lose heat faster than other doors but with proper weatherstripping you can decrease the amount of air leakage around.
The simplest and easiest way to keep your sliding glass door from leaking is by keeping the track and rollers clean.
Five ways to winterize a sliding glass patio door.
If your sliding glass doors run on a track keep the track clean.
Keep the door track clean and free of debris.