http://www.dannylipford.com/diy-home-improvement/kitchens-and-baths/installing-ceramic-tile-backsplash-over/ Expert Advice on Home Improvement Thu, 28 Aug 2008 20:41:36 +0000 http://wordpress.org/?v=2.0.4 http://www.dannylipford.com/diy-home-improvement/kitchens-and-baths/installing-ceramic-tile-backsplash-over/#comment-27135 Thu, 22 May 2008 00:03:06 +0000 http://www.dannylipford.com/diy-home-improvement/kitchens-and-baths/installing-ceramic-tile-backsplash-over/#comment-27135 For a sink area, you really should be using a "rock board". Green drywall is not waterproof - it will delaminate just like regular drywall if it gets wet. Green drywall is just more humidity resistant so it is used in bathrooms. I would cut out an area of drywall slightly smaller then your tile area, cut out a piece of tile backer board to fit the cutout area, and shim up the backer board so the tile will sit flush with the surrounding wall. Fasten the backer. The tile will overlap onto the drywall slightly and at the same time seal up the outside perimeter well to prevent water intrusion. No taping will be needed since your tile glue & tile will seal the seam. For a sink area, you really should be using a “rock board”. Green drywall is not waterproof - it will delaminate just like regular drywall if it gets wet. Green drywall is just more humidity resistant so it is used in bathrooms. I would cut out an area of drywall slightly smaller then your tile area, cut out a piece of tile backer board to fit the cutout area, and shim up the backer board so the tile will sit flush with the surrounding wall. Fasten the backer. The tile will overlap onto the drywall slightly and at the same time seal up the outside perimeter well to prevent water intrusion. No taping will be needed since your tile glue & tile will seal the seam.

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