How to find a rain water leak

[rmanrman]

I have a one car attached garage with a back entry door
It’s a 3 year old thermatru door that I installed before siding the house and garage. The siding is vinyl and underneath is tyveck house wrap
Well after a 3 inch rain storm the next day I notice that the head jamb is warped and peeling paint making the door hard to open. The manufacturer said no storm door or the excess heat will warp the door and no warranty
What I did was pure clear silicone caulked the J channel above the door and caulked around the door frame. How do I find where this water is getting in without removing the siding??

 

[kd3pc]

you might try drying things off or blowing the water off and out...then sprinkle talc powder all around the interior framing and door...hose it down, or have someone hose it down, while you look for water...it should stream the talc...

Now to the "actual" location...that may require removing the siding.

bests

 

[larry4406]

Wood door frame with brick mold? Did you seal the back side of the brickmold with a eurothane sealant and then push the brickmold tight to the tyvek bedding the sealant and then set the door? Brickmold flashed at head jamb before j-channel?

My company uses these doors and we have lots of leak issues due to installation. Never heard the lack of storm door as a fault though.

 

[Xander]

Therma tru sells their door slabs to all kinds of “door hangers” that can make some real lousy frames. I’m gonna guess that’s where the core of the problem is. Making a drip cap from under the siding, over the top of the brickmould and out will help for the new frame you should put in. Also aluminum wrapping for the frame is a great idea.

My company replaces plenty of doors that are only a few years old. The frames are rotting away, but the slabs are still in great shape. I see it all day long.

X....

 

[Hobbit]

Find a buddy or pay a home inspector with a flir/thermal imaging camera. It will pinpoint the exact spot in seconds in trained hands.