Expert Answers in Waterproofing
Should I Install Limestone Coping on my Pool?
Always take what the contractor says with a grain of salt and make sure there is documents backing it up. Don’t assume they are doing things correctly and read the directions that they likely don’t…
Read MoreIs it required to have a Waterproof Membrane under a Floor Tile Installation in a Mud Room, Laudry Room or in a Bathroom floor
ANSWER - It depends on what type of mat was used over the plywood on whether it is an acceptable installation method. Although it would be ideal to install a waterproof membrane in areas that…
Read MoreHow do we determine what caused our Tile Shower to Fail?
ANSWER - You are asking a lot that can't be answered without performing a forensic inspection to determine what is causing the failures. I can make some general statements that may or may not apply…
Read MoreIs it a problem if Schluter Ditra is installed on the walls of a Steam Shower?
ANSWER - Based on the Schluter literature, although they only show floor applications, they don't say it is only for floors. The Ditra is waterproof if installed correctly for waterproofing. It does have a key…
Read MoreWhat should we do if there is evidence that there is high Moisture coming up our Concrete Slabs?
ANSWER - Carpet might be allowing the moisture to evaporate through it, but as dirty as carpets get you could develop some microbial growth in the carpet. Adding more carpet doesn't solve or prevent problems.…
Read MoreIs it necessary to waterproof under tile installations?
ANSWER - It depends on the application on whether waterproofing under a tile installation is necessary. If it is in a wet application and in some exterior applications, then it is necessary to waterproof the…
Read MoreHow do I repair the Horizontal Grout Joint between the Bathtub and the Tile wall?
ANSWER - The transition joint between the top of the bathtub flange and the wall tile is not supposed to be filled with a cementitious grout. It should be filled with a resilient ASTM C920…
Read MoreWhat kind of Water Resistant Barrier or Vapor Barrier should be used For Exterior Tile Veneer Installations?
ANSWER - W244E can be a ceramic or glass tile or a stone application for an exterior framed wall with cement backer board over it. If it is a cementitious backer board then they would put…
Read MoreIs it alright to use Silicone Sealant to fix a Shower Leak?
Answer: First of all, all of the transition joints in the shower both horizontal and vertical should not have been grouted with a cementitious grout. They should have been filled with an ASTM C920 resilient sealant…
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