Morter Shower Pan Sub Floor

Over the membrane a mortar bed floor supports the tile.

Morter shower pan sub floor. You want to end up with at least an 1 1 4 thick mortar bed at the drain assembly. It s sloped toward a special two piece clamping type drain available at any home center that is made specifically for a mortar bed shower floor. 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. 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.

Float the mortar bed. As part of that mortar show. 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. This felt layer will serve as a moisture barrier for the first layer of mud helping the mortar to retain moisture while curing.

Set the acrylic shower pan in place on top of the mortar. The first layer called a sloped fill is simply a mortar subfloor. Mortar mixes for shower pans are blended with portland cement which is water resistant when it hardens and sand. Use deck mud which only requires water to be added and is easy to work with.

Stand in the base or pan to determine if the subfloor is stable. Chicken wire is not needed at this point just mortar. A mortared shower pan allows you to custom fit a shower enclosure. If you are installing tile the mortar bed should be 2 3 inches thick on the outer edge and slightly less at the drain.

The sloped fill slants from the drain toward the perimeter of the shower with a slope of 1 4 in. 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. The slope directs water toward the shower drain. When mixing the mortar use only enough water to obtain a dry pack consistency.

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.