Expert Answers in Waterproofing

ANSWER – The allowable vapor emission rate depends on what installation and tile products you are using. Generally speaking the standard for the floor covering industry and what most installation product manufacturers publish is 3…

ANSWER – First you need to verify that your mosaic is frost proof/freeze thaw stable.  If it is porcelain or vitreous clay tile it is possibly frost proof.  If it is a stone mosaic then it…

ANSWER – Yes, you always need a vapor retarder (barrier) per ASTM E1643.  The vapor retarder should continue up the sides of the foundation to prevent lateral migration of moisture.  Sometimes a sand bed can be…

ANSWER – To replace the grout in a freeze thaw climatic area you should first cut out and remove the existing grout.  Make sure you first use a wet/dry vacuum to remove all the dust and…

ANSWER – I’m not sure where you are starting on this project if the interior plywood is already installed, but I will give you some key steps and options.

First the structure needs to be…