Wet Room Tanking Solutions

wet room tanking solutions

Wet Room Tanking Solutions

Waterproof your wet room.

The OTL wet room tanking system has been developed specifically to tackle the problem of leaks from tiled wet room areas. The system can be applied to many different surfaces – timber, plasterboard, MDF, concrete screed and most commonly used construction boards.

  • A fully flexible tanking system
  • Installed as a liquid rubber

pdf-icon  Download our Installation Guidelines

otl wet room tanking solutions and products

Wet room tanking square grating kit (OTL021)

To waterproof your wet room we recommend the OTL Wet Room Tanking Kit (OTL 021) which covers up to 8m².

 

Contents

  • 15kg liquid rubber compound (OTL025)
  • 3ltrs primer (OTL022) – to be applied to all substrates prior to compound
  • 15mtrs tape (OTL024) – to be applied to a joists on walls and floor
  • 2 small pipe sleeves (OTL026) to seal around thermostat / radiator pipe
  • large outlet sleeve (OTL027) watertight seal to gully

Individual tanking products

For more technical information on wet room Tanking products and guidance or contact the team.

wet room tanking primer

OTL 022
Wet Room Tanking Primer – 3 Litres

A solvent free, highly absorbent primer for both porous and non porous surfaces. Applied at the rate of 150g/m²

wet room membrane and adhesive

OTL 025
Wet Room Tanking Compound 15KG (12SQ.M)

Solvent free, silicone compatible sealing membrane and adhesive supplied as a thick liquid applied in two generous layers at the rate of 300 – 400g/m²

wet room Tanking Sleeves

OTL 026
Small Wet Room Tanking Sleeves

Pre-made with elasticated holes for water outlets.

wet room Tanking Mat

OTL 027
Large Wet Room Tanking Matts

Large outlet sleeves are supplied for waste outlets.

wet room Tanking Tape

OTL 023/024
Wet Room Tanking Tape

Fabric reinforced, elastic sealing membrane for wall and floor junctions and other areas subject to stress. OTL sealing tape is based on a cure unplasticised acrylate dispersion with an undercoat fabric border along both sides.

OTL 023

(100mm x 50m Roll)

OTL 024

(100mm x 15m Roll)

wet room Internal Corner

OTL 028
Internal Corner

OTL sealing tape is based on a cure unplasticised acrylate dispersion with an undercoat fabric border along both sides.

How much wet room tanking do I need?

The complete floor area of the wet room MUST be tanked. The bottom of the walls must be tanked all the way around the room turning up from the floor to a minimum of 100mm. All walls in the showering area (wet zone) and splash zone (splash zone is 600mm past the wet zone) MUST be tanked from floor to ceiling.

Internal and external corners (optional)

If the floor area of the wet room is rectangular, measure the width in metres x the length in metres. This illustration will give you the total area: 2.5m x 1.2m = 3m²

To calculate the floor area if the floor area is an irregular shape, or if there is a curve in the room, section it off to make rectangles or squares and then add them together.

 

Find out more about tanking

wet room tanking diagram

How much tape do I need?

You will need enough tape to cover all the joins ie. around the perimeter of the room where the wall joins the floor and any vertical wall to wall joints in the wet zone and splash zone areas.

How to calculate a wet room surface area

If the floor area of the wet room is rectangular, measure the width in metres x the length in metres. This illustration will give you the total area: 2.5m x 1.2m = 3m²

To calculate the floor area if the floor area is an irregular shape, or if there is a curve in the room, section it off to make rectangles or squares and then add them together.

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