Water Leaking Into Basement Through Deck - Building & Construction - Page 2 - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 06-14-2012, 06:52 AM   #16
kwikfishron's Avatar
Join Date: Mar 2010
Location: Kansas City/Oregon Coast
Posts: 10,299
Rewards Points: 998

It’s defiantly time to pull that first coarse of siding and the decking against the house to see what’s going on. This is a very common issue and should be easy to figure out once exposed.

I doubt the slider has a pan flashing detail under it and it should so the door may have to come out also. Removing the decking against the house should answer that question.

OP said that he and someone else tried to remove the decking and could not and thought it may be glued. Gluing the board would be unusual but if it was glued to the rim that could be the, or part of the cause of the leak. Either way the board needs to come up even if it’s in pieces.

This thread is three years old, ignoring the issue any longer could be costly.


A Picture Is Worth A Thousand Words
Especially In The DIY Chatroom
kwikfishron is offline   Reply With Quote
Old 06-14-2012, 08:23 AM   #17
Join Date: May 2009
Posts: 11
Rewards Points: 10

Originally Posted by danpik View Post
I doubt you will have to pull the door right now, hopefully never. However, vinyl siding is easy to remove and replace. It may be time to pull the piece covering the area just above the deck to see if the flashing comes up the wall
That's the other thing. There is no space between the sliding glass door and the deck. The threshold sits right on the first deck board.
john8791 is offline   Reply With Quote
Old 06-14-2012, 11:37 AM   #18
Chicago, IL
Michael Thomas's Avatar
Join Date: Jan 2008
Location: Chicago, IL
Posts: 1,037
Rewards Points: 500

If you end up re-flashing, you might want to consider this " belt and suspenders" approach:

Deck to Wall Flashing - FEMA
Home Inspections, Infrared (Thermal Imaging) Leak Identification and Inspection Services, Roof, Attic, Building, Basement and Foundation Moisture Intrusion and Water Leak Inspections, Troubled Building Consultations - Serving Chicago and Suburbs http://paragoninspects.com/
Michael Thomas is offline   Reply With Quote
Old 10-18-2013, 12:25 PM   #19
Join Date: Oct 2013
Posts: 2
Rewards Points: 10

Similar Issue

I'm pretty much having this same issue with my deck. The bummer is that it's a two tier deck and both the upper and lower part were constructed the same way. We've tried various attempts to stop water leakage over the years and we've had some success limiting the water flow.

This past summer we had a ton of rain and I recently noticed that white mold is now growing in my crawl space where water is still leaking in from the lower deck.

I'm planning to install z flashing on top and below, but I was wondering how to stop water from getting in where the end of the deck meets the end of the house. In other words, where the decking and ledger meet the corner of my home (the outside corner post of the siding).

Picture attached for reference. We obviously used some caulk here, but I'm referring to the gaps where the siding and the boards don't meet up exactly. How do we stop water from getting in there?
Attached Thumbnails
Water leaking into basement through deck-deck_sample.jpg  
Moony_Lupin is offline   Reply With Quote
Old 11-01-2015, 08:51 PM   #20
Join Date: Oct 2015
Posts: 11
Rewards Points: 18

I was living with my now ex g/f and had the same exact problem and because I'm hypersensitive to mold and wooden decks are known to get moldy I completely tore the deck apart and sealed the side of the house. Once that was done whatever joists were moldy I tossed and primered and painted the remaining joists. It was allot of work but when I was done I didn't have any more problems with water intrusion and the deck actually looked better
Tugg is offline   Reply With Quote
Old 11-01-2015, 10:24 PM   #21
joed's Avatar
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 13,456
Rewards Points: 13,712
Blog Entries: 11

Two year old thread.


joed is offline   Reply With Quote

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 with garage underneath- water leaks johnny67 Building & Construction 9 05-13-2009 05:43 AM
Water back up in basement 49erfootball Plumbing 2 03-15-2009 04:17 PM
Basement water meter below floor level redfox1 Plumbing 5 12-10-2008 08:20 PM
Water leaking into septic pipe below toilet Gramps Plumbing 1 09-14-2008 09:54 PM
Water leaking into basement johnjpas34 Building & Construction 2 09-06-2007 05:28 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1