Deck Leaks Even With Z Flashing - Building & Construction - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 06-13-2012, 02:27 AM   #1
Newbie
 
Join Date: Jun 2012
Posts: 15
Rewards Points: 10
Default

Deck leaks even with Z flashing


Hi guys, (sorry I will post some pictures on this issue tomorrow). I have a walkout deck/balcony. It looks like water is leaking to my basement wall thru the deck. (the whole wall is wet - this is where the ledger attached). The house is L shaped so my walkout deck is attached to the L shaped ledger. The deck has Z flashing installed I noticed the water leaks more at the L corner of the deck so my question is:

If the Z flashing is installed. Is there any other ways the water can come in?

Because of the L Shaped ledger/deck, I noticed the Z flashing is overlapping each other at the L corner, would this cause the leak?

Can the water get underneath the Z flashing and leaks behind the ledger board?
Thanks


Thanks
Attached Thumbnails
Deck leaks even with Z flashing-small_pix_deck.jpg  

Advertisement


Last edited by newbieguy; 06-13-2012 at 03:31 PM. Reason: Adding a pix
newbieguy is offline   Reply With Quote
Old 06-13-2012, 05:56 AM   #2
Remodeling Contractor
 
Join Date: Dec 2008
Location: Sandy Hook, CT
Posts: 3,590
Rewards Points: 2,000
Default

Deck leaks even with Z flashing


it could. This is why we use ice and water membrane behind the ledger and then flashing over the deck ledger board. It is also better to space the ledger board away from the building at least 1/2"

Advertisement

Bob Mariani is offline   Reply With Quote
Old 06-13-2012, 06:39 AM   #3
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,778
Rewards Points: 672
Default

Deck leaks even with Z flashing


Or make them free standing.
joecaption is offline   Reply With Quote
Old 06-13-2012, 09:55 AM   #4
AHH, SPANS!!!
 
Join Date: Apr 2012
Location: Durham NC
Posts: 1,684
Rewards Points: 1,032
Default

Deck leaks even with Z flashing


Quote:
Originally Posted by newbieguy View Post
Hi guys, (sorry I will post some pictures on this issue tomorrow). I have a walkout deck/balcony. It looks like water is leaking to my basement wall thru the deck. (the whole wall is wet - this is where the ledger attached). The house is L shaped so my walkout deck is attached to the L shaped ledger. The deck has Z flashing installed I noticed the water leaks more at the L corner of the deck so my question is:

If the Z flashing is installed. Is there any other ways the water can come in?

Because of the L Shaped ledger/deck, I noticed the Z flashing is overlapping each other at the L corner, would this cause the leak?

Can the water get underneath the Z flashing and leaks behind the ledger board?
Thanks


Thanks
depending on the direction of the decking boards it is usually easiest to pull up a few deck planks to expose questionable leaky area and find the fix. with the decking out of the way you can see what is going on where the deck is attached at the house.
hand drive is offline   Reply With Quote
Old 06-13-2012, 03:22 PM   #5
Newbie
 
Join Date: Jun 2012
Posts: 15
Rewards Points: 10
Default

Deck leaks even with Z flashing


Quote:
Originally Posted by hand drive View Post
depending on the direction of the decking boards it is usually easiest to pull up a few deck planks to expose questionable leaky area and find the fix. with the decking out of the way you can see what is going on where the deck is attached at the house.
The issue is that my wall is stucco..it's not easy to take out the Z flashing (is it??) .. but yes, I will pull up one or two planks closer to the flashing to take a look

Last edited by newbieguy; 06-13-2012 at 03:36 PM.
newbieguy is offline   Reply With Quote
Old 06-13-2012, 03:34 PM   #6
Newbie
 
Join Date: Jun 2012
Posts: 15
Rewards Points: 10
Default

Deck leaks even with Z flashing


Hi guys, I just added a pix of my deck. My observation:

The flash doesn't look flush, could water leak in under the flashing to the ledger area.

Should I bend the flash down ward a bit so that the water can flow outside?

Thanks
newbieguy is offline   Reply With Quote
Old 06-13-2012, 06:32 PM   #7
Framing Contractor
 
Join Date: Apr 2006
Location: Caldwell, NJ
Posts: 1,758
Rewards Points: 1,000
Default

Deck leaks even with Z flashing


Quote:
Originally Posted by newbieguy

The issue is that my wall is stucco..it's not easy to take out the Z flashing (is it??) .. but yes, I will pull up one or two planks closer to the flashing to take a look
How high was the stucco cut above the decking to properly flash it?
__________________
Joe Carola
Joe Carola is offline   Reply With Quote
Old 06-14-2012, 12:10 AM   #8
AHH, SPANS!!!
 
Join Date: Apr 2012
Location: Durham NC
Posts: 1,684
Rewards Points: 1,032
Default

Deck leaks even with Z flashing


stucco can be a tricky wall to get flashed correctly if the stucco guy did not flash it correctly in the beginning or if the deck was built with improper flashing.

Last edited by hand drive; 06-14-2012 at 12:13 AM.
hand drive is offline   Reply With Quote
Old 06-14-2012, 01:24 AM   #9
Newbie
 
Join Date: Jun 2012
Posts: 15
Rewards Points: 10
Default

Deck leaks even with Z flashing


Quote:
Originally Posted by hand drive View Post
stucco can be a tricky wall to get flashed correctly if the stucco guy did not flash it correctly in the beginning or if the deck was built with improper flashing.
I agree. I think as long as the flash is behind the tar paper then that should do the trick but for my case, I might have to cut several inches of stucco to confirm if the flashing is indeed behind the tar paper. I was searching the net and noticed guys installed the flashing in front the tar paper, is this acceptable? I didn't think so but I'm not expert in this field.

Btw, another question, other than slight color differently, for stucco, can a contractor cut several inches and redo the stucco just for that part. I don't want to redo the whole wall just because of the flashing.

We had quite a heavy rain today for 2 hours and I went down to the basement and checked my wall where it was wet before. It was perfectly dry...now I'm puzzled. Is there any tests I should perform? I was expecting some water leakings after this heavy rain. I will post a picture of the deck after the rain.

Advertisement

newbieguy is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Deck: gap from 1st deck board to wall frankkerfoot Building & Construction 2 05-16-2012 09:49 PM
Do I need deck flashing? rewzter Building & Construction 14 04-23-2012 06:36 PM
flashing help needed endgrainguy Roofing/Siding 3 12-31-2009 11:09 PM
Building a new deck....and creative uses of granite scrap in outdoor living space Rhizzlebop Building & Construction 9 05-15-2009 12:17 PM




Top of Page | View New Posts