This guy is one of the top tile inspectors and consultants in North America.
Check out his blog site. http://www.uofcts.org/2012/08/to-slope-or-not-to-slope/
John Whipple ---- No-Curb, No-Dam, Hobless Shower Blog: No-Curb.Blogspot.Ca---- Email email@example.com---- Phone: 604 506 6792 Always get construction advice double checked by your local city hall. Flood Test Every Shower - Every Time. "When It's perfect. It's Good Enough." - JW