Mark P Posted October 24, 2009 Report Share Posted October 24, 2009 This is new construction. The exterior foundation wall is covered in some water proofing stuff that is split and wrinkled and there is a gash, probably from the landscaping equipment, in the wall. Iââ¬â¢ll recommend the gash be repaired. What Iââ¬â¢d like to know is: What is the waterproofing material? It has a rubbery / elastic feel to it. Where can I learn more about how it is applied, its properties, etc? Are the splits and wrinkles normal, a problem, need correctionâ⬦??? What do other inspectors say and this sort of thing? Thanks Mark Click to Enlarge 38.84 KB Click to Enlarge 58.07 KB Click to Enlarge 67.66 KB Quote Link to comment Share on other sites More sharing options...
Jim Katen Posted October 24, 2009 Report Share Posted October 24, 2009 It looks like a liquid-applied membrane that's delaminating and self-destructing. It seems like a really bad idea. I have no idea how you'd fix it or even if it needs to be fixed. - Jim in Oregon Quote Link to comment Share on other sites More sharing options...
emalernee Posted October 27, 2009 Report Share Posted October 27, 2009 The third picture (with the gash) looks like exterior gypsum covered with a vinyl material. I have never seen exterior grade gypsum sheathing used below grade, only as replacement for Celotex. What's behind this surface? Basement, crawl, or foundation on grade? Some areas won't allow exposed concrete foundations, so maybe this is the builder's idea of a finished veneer. Ezra Malernee Canton, Ohio Quote Link to comment Share on other sites More sharing options...
Mark P Posted October 27, 2009 Author Report Share Posted October 27, 2009 It is a full basement. I see exposed concrete foundations every day, in fact that is almost all I see. The postion below grade is usually sprayed with a black substance before i is backfilled. I can't remember seeing this rubbery stuff before. I told them to get the name and manufacturer of the product from the builder and I would do some homework. Quote Link to comment Share on other sites More sharing options...
hausdok Posted October 27, 2009 Report Share Posted October 27, 2009 Hi Mark, I wonder if it could be this stuff, which is designed to be used on interior basement walls. I agree with Jim, whatever it is, it's coming off that wall because moisture has gotten into the concrete behind it. They use something similar around here but they usually protect it with Typar Delta Drain or something similar so it won't be damaged by stone in the backfill or by equipment. ONE TEAM - ONE FIGHT!!! Mike Quote Link to comment Share on other sites More sharing options...
john_opwin Posted December 28, 2009 Report Share Posted December 28, 2009 I think Jim is right about that , we both share common views with it. Quote Link to comment Share on other sites More sharing options...
Rob Amaral Posted December 28, 2009 Report Share Posted December 28, 2009 Looks like 'paint'... ? Quote Link to comment Share on other sites More sharing options...
Erik Posted December 28, 2009 Report Share Posted December 28, 2009 Looks like Ames water proofing. Any time I have seen it applied it was protected with a drainage mat. Link http://www.amesresearch.com/basement.htm Quote Link to comment Share on other sites More sharing options...
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