Preparation For Creating Slopes

Floor Preparation
To create the slope in the shower area of your wet room without a step is very straightforward when using channel drains as the floor only has to slope one way and is therefore much easier to tile, with no tile cuts. In this example, the depth of the floor is 22mm. If you require a larger wet area you will have to increase all of the existing floor level, i.e. Use tile backer boards or more ply to give a longer slope.

Tips On Installation
1. You run the risk of water puddles if the slope is any less than 10mm in a 1 meter fall depending on the surface material used.
2. The smaller the tile, the better the water flow.
3. It is not advisable to provide a fall of more than 17mm to 1 metre otherwise the water will hit the drain too fast.
4. If you have a high flow rate shower, i.e. over 25 litres per minute, it is best to create a fall of between 12-16mm to 1 meter if a channel drain is to be used.

Creating A Fall Firstly, remove the existing flooring that needs to be dropped to create the fall. Then fix additional timber (2) to the existing joists (1) using screws. These must be set far enough down to lay level with the top of the joists when you re-lay the existing flooring on top (3) i.e. if your flooring is 22mm in depth (4) the top of the additional timber should sit 22mm down from the top of the joist. Drop your existing flooring onto the top of the timber (2&3) and screw into place.

Fitting Channel Drain Firstly calculate the depth of your tiles + tile adhesive + membrane. i.e. - Tiles 10mm, Adhesive 4mm, Tilesafe membrane 2mm giving a total depth of 16mm. The 800ZU Channel Drain is 20mm deep and so should be rebated into the floor by 5mm with 15mm upstanding. Also, use an installation plate to cover the outlet connection for an easy installation.

Applying x-plan

Concrete, plaster, light concrete, ceramic tiles, painted surfaces x-plan must be applied immediately after priming. It levels itself, but if necessary can be smoothed and spread into corners with a smooth spatula. Thickness on concrete, plaster, ceramic tiles, painted surfaces: 2-50 mm. Thickness on light concrete: 5-30 mm.	Wooden floors x-plan must be applied immediately after mixing. On chipboard, plywood and floorboards it can be applied directly onto the primed surface. If a wooden surface that has been treated with x-plan is to be covered with a hard substance, e.g. ceramic tiles - special instructions are necessary. Thickness: 5-50 mm.
Heated floors x-plan is very suitable for building up thin heated floors. Heating cables must be fastened to a non-flammable underlay with hot-melt adhesive. If an inflammable underlay is used, a layer of x-plan 5 mm. thick under the cables or the use of a 20 mm wire rendering mesh is recommended. A mesh is always recommended where x-plan is to be applied to wooden floorboards. The compound must cover the heating cables by min. 5-10 mm depending on the capacity of the cables and the stability of the underlay	Building up a fall The mix (with reduced water content! must be applied along the wall. It will itself flow towards the floor drain. Prevent the mix from flowing down into the drain by fastening some kind of retainer to the floor, e.g. mira planstop - self-adhesive (oam plastic strips. When the mix has hardened so that it can be walked on with care, the fall can be adjusted and rendered to match the floor drain.
Finishing Further surface treatment is possible when the leveling compound has hardened and dried. The drying time will depend on the moisture content of the underlay. Normally, ceramic tiles can be laid after 6-12 hours. At least 12-18 hours should be allowed after a mix has been applied before damp proofing with 4120 sealer or 4400 multi-coat is applied. When laying vinyl, linoleum etc. follow the suppliers instructions.	Mira flow test Place the mira flow tester on a primed and flat surface. Fill the tester to the top with x-plan and then lift the tester so that the measured amount of x-plan is able to flow out freely. When the compound has flowed completely from the tester on it's own accord, measure the diameter to which it spreads. With the correct amount of water added, this diameter must be 135-145 mm.

Technical specification

Mira x-plan is supplied as a dry product consisting a special cement, sand, bonding agent, plastic, fibre and additives.