Thanks for the replies. The door is pretty solid and doesn't seem like its seperating... but perhapse it is. The weather stripping around the frame looks great so not sure why the leak if there isn't anything else involved. Thanks again.
I have a front door that leaks a lot on the door handle side. It appears to have a groove in the door itself for some sort of weatherstripping (now missing).
I can't find any type of weatherstripping that is designed to be attached to the door itself as opposed to the door frame. There is...
Checkout the following article. It's the method I use to trace ducts. I hope you find it helpful.
http://timothymarsh.hubpages.com/hub/Tracing-Your-Homes-Ductwork