Vinyl Wet Areas

Key Considerations


  • Falls
  • Preparation
  • Curing of screeds
  • Installation and application
  • Temporary protection

Design

​​​​​​​Vinyl wet area design must consider:

  • Standard MPX 17300 series of drawings.
  • Falls in the finished vinyl sheet are to be suitable for draining surface water without ponding.
  • Falls to ensuite floors are to be 1:80 to 1:100
  • Floor wastes located in alignment with the shower head connection point and 600 mm out from the wall.
  • Floor wastes being stainless steel or chrome plated brass clamping type purpose made for sheet vinyl.
  • Joins being placed away from shower head connection point in the least obtrusive location; preferably behind doors or aligned with the edge of the door frame.
  • Floors laid in one piece if practicable.
  • Seams, joins, and the like being fully welded and be watertight.
  • Seams being true and parallel without gaps and peaking to provide an even and flush finish.


Toppings / Screeds 

Toppings/screeds for vinyl floor must:

  • Achieve a compressive strength of 20 MPa and tensile strength of 1.5 MPa. This can be achieved using sand-cement screed with polymer additives, or by using a Granolithic topping.
  • Have falls in the finished vinyl sheet that can drain surface water without ponding. Where feasible, falls in shower areas must be 1:60 - 1:80, other areas 1:80 - 1:100. In no case is the fall be less than 1:100.
  • Be installed with a vapour barrier.


Floor Wastes 

Floor waste must be:

  • Stainless steel or chrome plated brass clamping type, purpose-made for sheet vinyl.
  • Cast into the slab, topping or screed.

Preparation

Material Storage 


  • Before laying, vinyl must be left on site in accordance with the timeframe nominated by the manufacturer in order to acclimatise.
  • Se stored upright and out of direct sunlight.

Application

  • Vinyl must be approved as per project sample submission (needs to be tested to AS 4858).
  • Floor sheets must be laid first and returned up walls by not less than 150mm.
  • Floor and wall junctions must be provided with a compatible pre-manufactured PVC cove with a radius of not less than 25mm.
  • Welded joins must be placed outside the shower recess in the least obtrusive location; preferably behind doors or aligned with the edge of the door frame.
  • Sheet joints must not be placed closer than 300mm from a floor waste.
  • Butterfly joints to corners.

Protection


  • Adequate temporary protection (i.e. plywood or MDF sheeting) must be put in place to ensure the finished vinyl is protected from damage.
  • Do not use temporary protection that contains dies or colourants. Only raw board or clear plastic is permitted.

Multiplex Standard Details