Morter Shower Pan Sub Floor

Over the membrane a mortar bed floor supports the tile.

Morter shower pan sub floor.

Use the level to help guide you in your application of. The key to a successful installation lies in the use of a chlorinated polyethylene cpe or pvc membrane tough but flexible plastics that form the pan of the enclosure and make the floor waterproof. The first layer called a sloped fill is simply a mortar subfloor. Mortar is the type of concrete product that works best for shower pan applications since it contains no gravel allowing it to work easily and dry with a gentle slope.

If you are installing tile the mortar bed should be 2 3 inches thick on the outer edge and slightly less at the drain. Prepare shower pan for first mortar layer prepare the bottom of the should pan box for the first mortar layer by installing a layer of asphalt felt over the subfloor plywood. Stand in the base or pan to determine if the subfloor is stable. The sloped fill slants from the drain toward the perimeter of the shower with a slope of 1 4 in.

When mixing the mortar use only enough water to obtain a dry pack consistency. You want to end up with at least an 1 1 4 thick mortar bed at the drain assembly. The slope directs water toward the shower drain. Use deck mud which only requires water to be added and is easy to work with.

Place the level across the pan or base to determine if it is level both ways. Apply pressure at various points across the surface to press it into the mortar. This felt layer will serve as a moisture barrier for the first layer of mud helping the mortar to retain moisture while curing. Mortar mixes for shower pans are blended with portland cement which is water resistant when it hardens and sand.

A shower pan rests on a base of concrete that both supports the pan and provides a waterproof barrier for the subfloor and floor framing. If necessary lift the pan or base out of the way and. Set the acrylic shower pan in place on top of the mortar. Float the mortar bed.

As part of that mortar show. If you are using a preformed shower pan the manufacturer of the pan should provide instructions as to how thick the mortar bed needs to be.