bathroom_ShowerWaterproof2Methods

In the traditional ‘water-in/water-out’ system (left) water passes through the tile covering, percolates through the mortar bed to the sloped pan liner, and exits through weep holes in the clamping ring drain. In the ‘sealed’ system (right), water passes through the tile covering, but is contained just under the surface by the bonded waterproof membrane, allowing the system to dry out between uses.

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