Door Leak Problem

Old 05-22-13, 07:49 AM
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Door Leak Problem

House built in 91; basement has its own entrance. French Door - one side opens. During rain water started coming in on the top, to the left of the stationary door. I pulled off molding and wood behind molding on top of the door and found a gap that was partially filled with the expanding foam. I want to redo this correctly to avoid water into the house. What is happening is water is landing on the deck above, then rolling between the cracks down the side of the house then on to the molding and then rolling back into the house and all the while wearing out the caulk.

Any suggestions as to:
1) insulation
2) water proof
3) rebuilding the header
4) filing in gap.

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Old 05-22-13, 09:00 AM
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First I would start above on the deck and see if there is any flashing you can do in the area above the door to divert the water away. Just getting the water one deck board away from the house would probably be enough to stop the water from running down the wall and into the door.
Old 05-22-13, 09:32 AM
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I was going to say Z or drip flashing above the trim...but since that looks like poured concrete walls...that wouldn't be much help. I agree with working on the deck to try to deflect as much as possible, but a quality caulk should not "wear out" from water.

Maybe cutting a taper on the top of the brickmold trim? Or better yet...cut a beveled piece of wood something like this ( sorry it's so small) and extend it about 2" on each side of the top brickmold. If the brickmold is caulked and the beveled piece on top is well caulked, it would direct any run down water off and away from the joint.

Sort of like a window sill only on top of the door.
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Old 05-22-13, 01:25 PM
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Thanks for the quick responses, additional fact:

Above this door is the deck and the main floor back door entrance. Is there any flashing that would look good at the entryway of the door above (it is white brick) that will deflect the water away?

Old 05-22-13, 03:18 PM
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The ledger board for the deck needs to be flashed, starting under the siding or door sill or whatever's above. The bottom edge of the flashing can be slightly bent in a metal brake to kick away from the door and wall and ledger.

That should get you ready for sealing the wall-door gap, installing new molding and caulking that.

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