J-drain on top of footer. ES Legacy Report NER-636″??
I am building a home in the Atlanta Area with an encapsulated crawlspace. The builder just finished building the crawlspace walls with CMU’s on top of a ~24″x8″ footer. The sub that they have that does the water proofing basically came out, sprayed a thin coat of waterproofing, I’m not sure if it is the petroleum one of some other material but it was sprayed so thinly that you can still see the concrete surface below. It is like when your rolling paint on a wall and you don’t have enough paint on the roller. You get the wall showing thru..
On top of that, they did not remove all the morter that dripped onto the the footers before spraying the waterproofing. Next on the list is that they are using a product call J-Drain for the drain tile and they put in right on top of the footer and not beside the footer. And when I say on top of the footers, i mean on top of the excess morter and any dirt clumps that might have been there. Of course, now coated with “some” waterproofing.
I basically met with the builder and they are going to redo the waterproofing. I’ve asked them to move the j-drain off the top of the footer and install it to the side of the footer with the top of this 6″ J-Drain flush or below the top of the footer. The thinness of the waterproofing coating, he had no argument for but the drain tile he basically said that they’ve been doing it like this for many years. Looking at the installation instructions for this J-Drain, the reference some document “ES Legacy Report NER-636” for code approval. I can’t seem to find this document.
Is there anyone with knowledge of this document and the J-Drain product that might be able to enlighten me? As I mentioned, I’ve asked to have it moved down and he seems open to it but asked me to send him documentation since I told him that everything that I’ve ever seen about foundation drain tiles says that they are installed beside the footer with the drain pipe below the top of the footer.
I’ve included some pics of the work.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part