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WATERPROOFING MEMBRANES
I am planning a new house, where should I think about using a waterproof membrane?
Anyplace where tile or dimensional stone is applied over a substrate that can be damaged by moisture contact. Example, tub decks and surrounds, showers including benches, seats and recessed boxes, exterior balconies, occupied spaces under wet areas i.e. upstairs laundry room and bathroom floors. The application of TexRite HydroRite waterproof membrane before the installation of tile or dimensional stone in the above areas would be an excellent investment.
Can TexRite HydroRite be used for exterior waterproofing under tile or dimensional stone installations?
Yes. Residential and commercial applications would both benefit from the application of HydroRite as a waterproof membrane
I am remodeling a bathroom and planning to use a cement- based tile backer-board. Should I consider using a waterproof membrane as well even though the backer-board is cement?
The confusion seems to be associated with the word ‘cement.’ Although cement is not typically affected by water exposure, cement is not waterproof. The typical tile backer-board is ½” thick. Water can pass through many of the backer-boards leaving the board and tile surface structurally intact but, over time, can cause extensive damage to the walls, floors and ceilings behind or around the tile installation. Applying TexRite HydroRite as a waterproof membrane to the backer-board before the tile or stone installation is a good practice, especially treating the joints, the weakest area of the backer-board installation. CAUTION: Always check the local building codes for guidelines on waterproofing and vapor barriers, when remodeling bathroom areas.
When TexRite HydroRite is applied as a waterproof membrane, will it prevent water or moisture from entering the underside of the installed system?
No. A waterproof membrane functions as a ‘positive’ side barrier to stop water or moisture penetration from the top of the installation preventing damage to the substrate. Water or moisture that is rising up through the substrate is on the ‘negative’ side of the installation and must be handled with a different method or product.