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Winkler ONE - Roof

Save £78.00 inc.VAT

Material: Winkler ONE - 5KG
Color: Grey
Sale price£129.99 inc.VAT Regular price£207.99 inc.VAT


ONE - The 1st and ONLY - All Weather Roof or Floor Coating - Wet, Cold or Hot substrates with temperatures between 0°C and 40°C.

Winkler ONE is a premium liquid roof coating membrane with many unique and cost saving benefits.

No Primer Required

After complete curing, ONE ensures superior waterproofing protection while maintaining resistance to thermal shocks, foot traffic, and, in case of application over hard surfaces such as concrete or floor tiles, to patio furniture.

ONE is a fast-curing product that tolerates precipitations in a short period of time after its application.

Due to its formula, ONE is able to evaporate water / moisture from the substrate through the coating.

ONE is the first and only highly resistant liquid waterproofing product, ideal for work on wet substrates with temperatures between 0°C and 40°C.

20 Years Manufacturers Warranty
Winkler ONE - Roof

Anti-Slip As Standard

EN13036-4 Method for measurement of slip/skid resistance:

The minimum slip resistance value that is deemed to be safe for pedestrians in public spaces is 36 PTV in the worst contaminated conditions. Winkler ONE has a standard value of 58 PTV.

Winkler ONE - Roof

Winkler ONE® is the FIRST and ONLY highly resistant liquid waterproofing product, ideal for work on wet substrates with temperatures between 0°C and 40°C.

Resistance to negative counter-pressure (UNI EN 8298-8) 4 bar
Resistance to positive pressure (UNI EN 1928) 6 bar

Fast Curing in 0°C

Temperature of application

Rain-proofed in

+20 °C

2 h

+15 °C

2 h 30 min

+10 °C

3 h

+5 °C

4 h

0 °C

5 h

Pull Test

Laboratory pull-off test of Winkler ONE applied on concrete.
This test measures the force required to pull a specified portion of coating away from its substrate. This measured pull-off force provides a direct indication of the strength of adhesion between the coating and the substrate.
In the case of Winkler One on concrete, the adhesion is so strong that the concrete itself cracks and pulls off!


Fire Rating

ONE has a C fire rating which is much higher than most other liquid coatings. Now, more than ever, specifiers require reassurance and peace of mind when specifying building products for their construction projects with higher fire ratings.

Fire testing is standardised through the use of EN 13501-1: Fire classification of construction products and building elements. The most widely recognised standards are the German (DIN 4102) and French (NF P 92 503-507 (M1)). The European classifications based on the EN13501-1 standard break down into codes.

Products that have been given a fire rating on the European Classification will look like the following: A2, s1, d1. This classification shows the properties of a product based on 3 criteria.

There are 7 reaction to fire classifications levels available:
The reaction to fire classification determines how much (if any) a material contributes to the spread of flame:

A1, A2 = Non Combustible Materials.

B, C, D = Ranges from very limited to medium contribution to fire.

E, F = High contribution to fire.

The ‘s’ part relates to total smoke propagation, during the first ten minutes of exposure.

These determine a ‘smoke’ index:
S1 = a little or no smoke

S2 = quite a lot of smoke

S3 = substantial smoke

The ‘d’ part relates to ‘flaming droplets and particles’ during the first 10 minutes of exposure.
The index is:
D0 = none

D1 = some

D2 = quite a lotRanges from very limited to medium contribution to fire.

Winkler ONE - Roof


Winkler ONE waterproofing is the result of over 7 years commitment and investment in research and development, both in the laboratory and working directly with coating applicators onsite.

For over 6 years, from USA & Canada to Arab Emirates & Europe, ONE has provided customers a solution for any weather conditions, no matter if the substrate is wet, hot or cold.

In stock and ready to go with free next day delivery. Join over 10,500 professional roofers have bought Winkler ONE in the last 24 months

Winkler ONE - Roof

The average roofer loses approx. 30% of his potential yearly income because he cannot easily waterproof during wintertime

Winkler ONE - Roof
  • Flat roofs
  • Metal roofs recover
  • Balconies & walkways with intense pedestrian traffic / chairs and tables
  • Areas with moisture damages, including those with foot traffic
  • Concrete
  • Green concrete (cured at least 7 days at minimum +15ºC - 59°F)
  • Concrete blocks
  • Masonry
  • Fibered-cement boards
  • Ceramic tiled surfaces
  • Asphalt shingles
  • BUR cap sheets or modified bituminous membranes (oxidised minimum 180 days if smooth)
  • Plywood/ OSB
  • Wood
  • Metal


  • Ready to use- Long Pot Life / Reusable

  • High breathability 

  • Fast curing 

  • Very high resistance to positive and negative hydrostatic pressure 

  • VOC Zero 

  • No primer needed 

  • UV 100% resistant 

  • Water ponding /stagnation resistant 

  • Applicable on metal 

  • Applicable in wet condition 

  • Applicable in extreme conditions (0ºC or 40ºC)

Methods of Application
  • Brush
  • Flat trowel- Squeegee
  • Short haired roller
  • Airless spray gun -    Graco recommend the KING XL 70
Application Overview

Clean all substrate surfaces thoroughly to eliminate dirt, dust, and loose materials, any form of oil or grease and foreign or bonding-proof matters. There is no need for the substrate surface to be dry, but ponding water shall be removed prior to the application of ONE.

After thoroughly cleaning the surface to be treated

  • Apply Winkler BC Seal Band - (Butyl Self-Adhesive Band) to all joints.
  • Apply ONE (with a consumption of 0.70 gallons/sq.ft. - 400 g / m²) evenly.
  • Immediately lay ONE MAT (90g/m² non-woven reinforcement), by using a spiked roller, and liberally coat with other 1.23-1.58 gallons/sq.ft.(700-900 g/m²) of ONE.
  • Note: Concrete and ridged substrates do not require ONE Mat

Winkler ONE - Roof



2.98-3.35 gallons/sq.ft. (1.7-1.9 kg/m²) in two coats, with ONE MAT interposed.


1 kg pail – 1 box = 15 pcs 5 – 20 Kg pail

Winkler ONE - Roof

White- Grey- Red- Terracotta


The product in its undamaged packaging can be store for 12 months. No frost-proof. Store at temperatures between +5°C e +35°C.

Useful Tips

Do NOT dilute
Apply BC SEAL BAND (Self-Adhesive Butyl Tape) at wall to floor type corners, balcony terminations, around skylights or other alike penetrations.

Use BC SEAL PAD (Self-Adhesive Butyl Square Pad) around tubes, vent pipes, drains, etc. In case the substrate is damp, first apply a skim coat of ONE, prior to the application of any butyl accessory.

After the product cures, resume the normal application of the butyl accessories. Control cuts, contraction and/or most structural joints will be sealed, using the waterproofing elastic band WINJOINT BAND as follows:

Ensure the surface to be treated is clean.

Over the clean substrate apply ONE in two stripes 5 cm wide along each side of the joint, without covering the joint line.

Immediately place WINJOINT BAND over the wet stripes of ONE (the central part of the band will cover the joint line and the lateral wings of the band will be embedded onto the wet stripes of ONE.

After the product cures, cover the lateral wings of the WINJOINT BAND with a skim film of ONE.

  • BC Seal Band
  • BC Seal Pad
  • Winjoint Foam
  • Winjoint Seal
  • One Mat.


Data Sheet

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