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kellyyouse

06:42PM | 07/27/04
Member Since: 09/11/02
78 lifetime posts
Bvroofing
Hi all. . .

The back of my house is essentially flat from roof to walk-out basement with attached garage. I'm having a problem with water seeping into the garage, damaging the ceiling. The water appears to be coming in from the header above the garage door.

What can I do to either divert the water or prevent future leaks? Gutters seem to be designed solely for angled roofs, so I'm at a loss!

Thanks!

Kelly

youse@comcast.net

Jim D

01:13AM | 07/28/04
Member Since: 01/06/01
342 lifetime posts
Kellyyouse - hi, I'm not a roofer except when an emergency strikes...even "flat" roofs have some minor slope (maybe 1/4-inch per foot?) to them to make water run off them. Or, like commercial structures, they'll have a drain built into them and the roof will slope slightly towards the drain. It sounds like your roof does have some minor slope if the water is making it to the edge of the roof by the garage door.

Can you see water running off the roof and down the wall towards the garage door header? Knowing how water flows off the roof should help you fix the problem. Gutters may be the solution - but I've never installed any (yet) so I can't state that for certain. Hopefully, one of the roofing experts here will reply and enlighten both of us. Good luck - regards! Jim D/West Point, VA

kellyyouse

05:38PM | 07/28/04
Member Since: 09/11/02
78 lifetime posts
Jim,

Thanks for your reply. The water doesn't appear to be coming from the roof; we do have a flat roof with a drain much like you described. But my husband and I make sure to keep the drain clear by inspecting it at least twice a year.

In bad weather, though, the back of the house always takes a bad beating, with rain directly hitting the entire back in almost every storm.

The only thing I can think of is to build an awning-like structure just above the garage.

Again, thanks for your reply!

Kelly

youse@comcast.net

Jim D

12:54AM | 07/29/04
Member Since: 01/06/01
342 lifetime posts
Kellyyouse - hi again! Okay, if the roof does have drainage and the leakage seems to be from the way the rain water is hitting the side of the garage, caulking comes to mind. You may need to re-caulk along the entire length of the header board if you can determine that's the source of the leakage. Caulk will definitely be cheaper than an awning!

You may need to take the garden hose out there and spray that area, while watching inside the garage to see if you can see the water actually coming in. That way, you could rule out other areas of the wall or the garage door, and locate other places to be treated. Sorry about not being much help here - good luck! Jim D/West Point, VA

Celinasnan

12:19PM | 07/30/04
Member Since: 07/29/04
5 lifetime posts
Hi, I am a roofer for Martin Roofing, I have a suggestion for you. Please check to make sure that your drip metal along the edge of your flat roof is overlapping the back of your gutter, instead of behind it. If not the gutter should be removed and put under the drip edge.

Shaun
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