Ceramic and Porcelain Tile Exterior installation Waterproofing Wet Areas

How do I install Mosaic Tiles to be Freeze Thaw Proof?

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…

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Concrete Substrate Slab installation Standards Waterproofing

Vapor Barrier needed under Concrete Slab?

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…

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Grout Repairs Waterproofing

Deteriorating Grout in Colorado Mountains

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…

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Exterior installation Waterproofing

Any recommendations for the layers and waterproofing?

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…

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