I recently moved into a newly built house in an area still in construction. My house was completed before my immediate neighbours. While they were excavating, they took large chunks of our foundation wrap out.
I made this known to our site supervisor. His solution was to pin back what was left over as "it [is] deep enough down from finished grade to worry about sealing".
I looked up the installation manual for the "DMX Foundation Wrap" that they used. It has a section on fixing tears, so I'm weary that leaving it alone is an acceptable solution. Additionally, it suggests that it be installed an inch below final grading (which it is). Evident in the pictures below, the tear is about half a foot down. Is half a foot really "deep enough" to not be of concern? Will this have any future detrimental effects on my foundation? Should I request this be repaired/fix it myself?
Edit: There's not actually enough material to pin back. It's completely gone.
Best Answer
This needs to be repaired, whether you do it, or the builder does it. It is the builders responsibility, but if he does not do it, it still needs to be done. I read the install guide, they claim that a tear will not cause a problem, that is true over the short haul. Eventually dirt or sediment will leach in and begin to fill the void that is made for the water to travel out by. THAT will hold the moisture to the wall instead of letting it go down and drain into the drain tile.
Now, imagine that the dirt, a lot of it, compared to what it should be, (which is none) is already at the wall, it rains, now the dirt is already inside the cavity where the water, which is not really ever supposed to get in beyond the barrier, is now being pushed/washed into the void. Oh, that water is never really supposed to be in to begin with.
If only a few months have passed, the amount of dirt and water that gets in there should be minimal, hopefully, no concern. If it is repaired now, using the guidelines set by the manufacturer.