Two years ago, I consulted Jay about a problem we where having with our upstairs bathroom. We had just re-tiled one wall about four months earlier, however some new tiles were loose and others were falling off the wall, and we didn't know why. We had paid the contractor, and were unclear how to
proceed. Jay suggested we remove the tiles and drywall. Upon a detailed inspection, we discovered that there was no insulation or vapour barrier on this outside wall. As a result, condensation was occurring in the cold space behind the drywall. We had a new contractor install the correct wall
system and new tiles, and the problem has not recurred. This was an incredibly helpful conversation that saved us time, effort and aggravation! I plan to consult with Jay again should we run into any further problems with our house.