Aim a garden water hose with a sprayer set on mist or low at the outside of the sliding door.
Sliding glass door leaks cold air.
This allowed us to see the temperature of surfaces such as our sliding glass doors and where we had air leaks.
The amount of cold outdoor air leaking in through a just a small unsealed spot can be increased several times by the wind blowing against the door.
Energy gov has some great diy tips on doing an assessment of your home for air leaks.
Otherwise your house would explode.
Problems can be encountered when elements like precipitation and wind speeds exceed these levels.
Any air that leaks in through your sliding glass door must push air out somewhere else from your house.
Learn how to insulate door frame jamb to seal the door and keep cold air from leaking in from exterior doors and windows.
How to fix a sliding door leak.
Blocking the direct force of the wind from blowing against your sliding glass door helps considerably.
Check the weatherstripping or flashing.
Sliding doors are tested to withstand certain levels of protection from the environment and undergo a certification process.
This handy tool will cost anywhere from 20 to a couple hundred dollars depending on the brand and quality.
We also purchased an energy audit ir thermometer.
Weather stripping sliding glass doors weatherproofs and prevents energy leaks.
Just about any opening in your home be it a window door or sliding door can leak given enough wind and rain.
Brush fin or fin seal type weather stripping installed between sliding doors reduces energy loss and helps to.
If you use your sliding glass doors this might not be the best option.