Stone terrace - house joint leaking


Old 05-23-15, 07:22 PM
Thread Starter
Join Date: May 2015
Posts: 3
Received 0 Votes on 0 Posts
Stone terrace - house joint leaking


We purchased a home which has a concrete/stone terrace attached to the exterior brick wall. The joint between the terrace and the house is leaking and water is running down the house wall. This makes the house wall under the terrace wet (inside the house).

There is no drainage on the terrace and it seems to be level (not sloped away from the house). Also, since this is the Northern side of the house, it's cooler and snow seems to be accommodating in that area (judging by images, our first winter there would be next year).

It looks like there is some code that says permanent stone terrace cannot be attached to the house, so there is an inch gap between them filled with some sort of foam (I'm not sure exactly).

Question is what's the best way to waterproof this terrace-house joint or otherwise prevent the water from accumulating in that area and going down.

Thanks a lot,
Attached Images  
Sponsored Links
Old 05-23-15, 07:57 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 53,582
Received 417 Votes on 390 Posts
Welcome to the forums.

We try to keep a topic in a single thread so this is the thread that will be active. The other one has been removed. This is a good place for your thread and it will be seen and responded to.

A picture of the joint/area between the terrace and the house would be helpful too.
Old 05-23-15, 08:40 PM
Thread Starter
Join Date: May 2015
Posts: 3
Received 0 Votes on 0 Posts
Thanks PJ

For some reason it fails when I upload the second image, so here is a link to it where the joint can be seen. Thanks....

Name:  leak22.jpg
Views: 660
Size:  25.8 KB

Last edited by PJmax; 05-23-15 at 09:31 PM. Reason: inserted pic from link
Old 05-30-15, 10:42 PM
Thread Starter
Join Date: May 2015
Posts: 3
Received 0 Votes on 0 Posts
Anyone has ideas or recommendations as to how to waterproof this joint? Thx
Old 06-10-15, 01:47 PM
Join Date: Dec 2013
Location: usa
Posts: 1,334
Received 0 Votes on 0 Posts
cleanout what's in there now & install some closed-cell backer rod larger than the joint you're trying to seal,,, then caulk w/NP1 (vertical grade) & 'tool' it properly,,, the w/site has the info you need
Old 06-10-15, 03:01 PM
Join Date: Oct 2014
Posts: 643
Received 0 Votes on 0 Posts
No drain and not graded away from the house? What happens when it rains? Yes you need to clean the area and apply a flexible sealant but it will only be a short term fix if water continues to accumulate there. You should install a drain or cut a drain path away from that corner.

Like this

You can cut the stone with an angle grinder then grade the cuts away from the house. Then seal with with an elastomer paint or clear coat

Pictures can be deceiving and it may just be an effect of the dirtiness but it looks a bit like the terrace slopes towards there

Last edited by Esand1; 06-10-15 at 03:19 PM.

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

Thread Tools
Search this Thread
Display Modes
Ask a Question
Question Title:
Your question will be posted in: