MichaelWhat was the caulk you used and did you have a sub-slab depressurization system running?We had a lot of bubbling up of caulk in a commercial building that we were only sealing. Later we learned that an exhaust fan was creating a negative pressure in the building versus the outside of - 56 pascals or - 0.224" of static pressure.BillOn Wed, Oct 12, 2011 at 7:43 PM, Michael Talotta wrote:
Hello everyone,I sealed a very large basement last Friday that had some areas of the wall and floor joint with gaps as wide as 5/8" and one pretty good crack in the floor. Upon returning to the property yesterday it was apparent that there is a pretty good pressure beneath the slab. Have any of you ever experienced sealant bubbling up like this? See the attached pictures.
Regards,-- Michael TalottaNorthern Vista Home Inspection Radon Measurement & Mitigation Provider77 Webster StreetSt Johnsbury, VT 05819
802-745-7020www.nvhomeinspect.com
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