WATERPROOFING FLAT DECK ROOF AND PARAPET WALLS

Determining your product requirements
Measure area to which paint is to be applied. Depending on surface to which the product is to be applied, determine which products are needed. Check the Theoretical Spread Rates (TSR) on each of the specified products and see how many coats of each are recommended, then calculate what quantities of each product you will require, remembering to make adjustments for the porosity of each surface. TSRs are based on products applied to smooth, sealed surfaces. (e.g. an unsealed scratch plaster surface will absorb more paint than a sealed smooth one, so allow for a lower spread rate). Check out the specifications on all the top coat choices (referring to the relevant data sheets) and decide which is right for you.TSR = Theoretical Spread Rate | NC = Number of Coats | DT = Drying Time
Method #1 - Using AquaMatt
If cured concreteSurface PreparationEnsure surface is free of loose friable material. Apply 1 coat AcrySeal , diluted 1:1 with water to the entire deck and parapet walls. Allow to dry. If uncured concrete (Green stage)Surface PreparationEnsure surface is free of loose friable material Apply 2 coats CemenTek. Allow 2 hours of drying time between coats @ 25°C. Sufficient coats of CemenTek must be applied to completely seal the surface therefore apply more than 2 coats if necessary. Note: If the surface is not completely sealed then the applied waterproofing system may blister.Application MethodAdhere membrane to all joints using AquaSeal Saturator. Apply 1 liberal coat of AquaSeal Saturator to the areas to which the membrane is to be applied. Using the top of the brush and a dabbing action, bed the membrane into the still wet AquaSeal Saturator. Apply progressive sections of 30-40cm at a time checking that the AquaSeal Saturator is still wet. This will ensure complete adhesion of the membrane. Allow to dry. Apply the membrane to all 90 degree joints between the flat deck and parapet walls and any other joints where movement may occur (expansion joints). Use a brush to smooth down the membrane. Allow to dry. Using a sponge ripple roller or brush, apply first coat of AquaMatt, covering the deck, membraned joints and the tops of parapet walls. AquaMatt must be applied in multiple layers, so apply each coat thinly to facilitate quicker drying time between coats and allow to dry. Apply a second coat of AquaMatt. N.B. Drying times are at specified film thickness. Should AquaMatt be applied to thickly due to roughness, undulations and indents in surface, it is up to the applicator to check for thicker areas and to ensure they are properly dry between coats. If recoated before properly dry, blisters will form in the product in those areas. Apply 3rd coat and as many subsequent coats as necessary. The rule of thumb is 2 litres per square metre. So if your deck is 10m² you will need 20 litres of AquaMatt, which you must keep applying in coats (allowing to dry between coats) until all the product is finished. This is the only way to ensure you have effective uniform thickness of appropriately 1mm. Ensuring that the AquaMatt is completely dry finally apply 2 coats of either AquaSeal Top Coat or Elegance. White is recommended as it resists heat and minimises expansion and contraction. (Elegance is however available in the colour of your choice). You will need 1 litre per 8m² to achieve effective coverage.Guarantees and Maintenance PlanAny product will be degraded by the harsh UV rays experienced in South Africa. To ensure long term protection of AquaMatt, top coats of either Elegance or AquSeal must be applied.If white AquaSeal: (Guarantee Period: 5 years)Inspect annually to check for signs of degradation or cracking. Recoat with AquaSeal every 3-4 years. If white Elegance: (Guarantee Period: 10 years)Inspect annually to check for signs of degradation or cracking. Recoat with Elegance every 7 years. Do not hesitate to contact our technical support department on 011 794-2885 should you have any queries using this methodRelated Paintcor ProductsTSR = Theoretical Spread Rate | NC = Number of Coats | DT = Drying TimeUndercoat / PreparationAcrySeal - TSR: 10 - 15m² per litre | NC: 1 Coat | AM: Brush, Roller or Spray | DT: @ 25°C – 30 minutesCemenTek - TSR: 10 - 15m² per litre | NC: 2 Coats | AM: Brush, Roller or Spray | DT: @ 25°C – 2 hours before overcoating and foot trafic. 7 Days to Hard CureAquaSeal - TSR: 1m² per litre with Membrane. 8m² per litre on Sealed Surfaces | NC: 4 Coats with Membrane. 2 coats on AquaMatt | AM: Brush, Roller or Spray | DT: @ 25°C – 30 minutesAquaMatt - TSR: 0.5m² per litre @ 1mm film thickness | NC: 3 coats or until the product is all used up | AM: Brush or Roller | DT: @ 25°C - 30 minutes ± 150?m film thicknessTop Coat ChoicesEleganceMatt - TSR: 8 - 10m² per litre | NC: 2 Coats minimum | AM: Brush, Roller or Spray | DT: @ 25°C ±25 minutesEleganceSilk - TSR: 8 - 10m² per litre | NC: 2 Coats minimum | AM: Brush, Roller or Spray | DT: @ 25°C ±25 minutesAquaSeal - TSR: 1m² per litre with Membrane. 8m² per litre on Sealed Surfaces | NC: 4 Coats with Membrane. 2 coats on AquaMatt | AM: Brush, Roller or Spray | DT: @ 25°C – 30 minutesAquaSeal Saturator - TSR: 1m² per litre with Membrane. 8m² per litre on Sealed Surfaces | NC: 4 Coats with Membrane. 2 coats on AquaMatt | AM: Brush, Roller or Spray | DT: @ 25°C – 30 minutes
Method #2 - Using AquaSeal Saturator and membrane (Bandages)
If cured concreteSurface PreparationEnsure surface is free of loose friable material. Apply 1 coat AcrySeal , diluted 1:1 with water to the entire deck and parapet walls. Allow to dry. If uncured concrete (Green stage)Surface PreparationEnsure surface is free of loose friable material Apply 2 coats CemenTek. Allow 2 hours of drying time between coats @ 25°C. Sufficient coats of CemenTek must be applied to completely seal the surface therefore apply more than 2 coats if necessary. Note: If the surface is not completely sealed then the applied waterproofing system may blister.Application MethodAdhere membrane to flat deck and parapets using AquaSeal Saturator. Apply 1 liberal coat of AquaSeal Saturator to the areas to which the membrane is to be applied. Using the top of the brush and a dabbing action, bed the membrane into the wet AquaSeal Saturator. Apply progressive sections of 30-40cm at a time checking that the AquaSeal Saturator is still wet. This will ensure complete adhesion of the membrane to the surface. Allow to dry Once the membrane is stuck to the surface and is dry, apply at least 2 more coats of AquaSeal Saturator to the membrane. Allow to dry. Finally apply 2 AquaSeal Top Coats or 2 EleganceSilk Top Coats. Allow to dry between coats.GuaranteeThis system carries a 5 year guarantee if inspected annually and a new top coat of AquaSeal applied after 3 to 4 years. This guarantee can be extended to 10 years if the finished system is top coated with EleganceSilk, inspected annually and overcoated after 7 years.Do not hesitate to contact our technical support department on 011 794-2885 should you have any queries using this methodRelated Paintcor ProductsTSR = Theoretical Spread Rate | NC = Number of Coats | DT = Drying TimeUndercoat / PreparationAquaSeal - TSR: 1m² per litre with Membrane. 8m² per litre on Sealed Surfaces | NC: 4 Coats with Membrane. 2 coats on AquaMatt | AM: Brush, Roller or Spray | DT: @ 25°C – 30 minutesAquaSeal Saturator - TSR: 1m² per litre with Membrane. 8m² per litre on Sealed Surfaces | NC: 4 Coats with Membrane. 2 coats on AquaMatt | AM: Brush, Roller or Spray | DT: @ 25°C – 30 minutesTop Coat ChoicesEleganceSilk - TSR: 8 - 10m² per litre | NC: 2 Coats minimum | AM: Brush, Roller or Spray | DT: @ 25°C ±25 minutes
Waterproofing New Flat Deck Roofs & Parapet Walls Tutorial - PDF Document
Entire Tutorial covering all Surface Preparation and Application Methods and Related Paintcor Products for Waterproofing New Flat Deck Roofs & Parapet Walls - Waterproofing New Flat Deck Roofs & Parapet Walls - PDF - (1.5M) - PDF - (1.5M)
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