Britannia Aquashield Standard is a ready to use solvent-based waterproofing coat for exterior pitched or flat roofs. The product contains embedded fibres which will cover up any small gaps and cracks in the substrate.
Ideal for bitumen, metal, fibreglass, porous and non-porous roofs, including iron, steel, slate, polished brick, concrete and asbestos cladding.
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Features & Benefits
- Works instantly
- Solvent based
- Rainfall immediately after application has no adverse effect
- Can be brush or roller applied
- Particularly suitable for general maintenance work
- Contains added fibres that interlace to cover up small gaps or cracks
- Ready to use
- External use only
Spreading Rate
These will vary depending on substrate, the site conditions and longevity required.
Typically spreading rates will vary depending on the end use.
- Approximately 1 kg per square metre dependent on substrate
- Should be applied at 5°C-25°C
Drying Times
- Up to 6-7 days depending on temperature and thickness of coating
- The product may remain soft for a further period depending on climatic conditions, this is not detrimental to the waterproofing qualities of the product
Not suitable for heavy foot-traffic areas.
Preparation
Clear all areas of moss, lichen and debris by brushing or power washing and remove surface water and any contamination such as Oil or Grease and allow to dry. Apply Britannia Fungicidal Wash to prevent further fungal/algal growth.
Most roofing substrates to be treated will not normally require priming.
Highly porous/friable surfaces:
- These Surfaces must be jet washed prior to applying the Britannia Aquashield Primer
- Concrete, Concrete and Asbestos Cladding, Sheeting and Guttering should be primed with Britannia Aquashield Primer (see separate technical sheet) prior to over coating with Britannia Aquashield Waterproof Roof Coating
- Fibrous cement corrugated sheeting: two coats of Aquashield Primer must always be applied to this substrate
Metal Surfaces:
Including:
- Ferrous-New, Weathered and previously painted galvanised iron and steel
- Non-Ferrous Metals - Aluminium sheeting and Aluminium Alloy Box gutters and previously painted non-Ferrous Metals
All these areas should be suitably prepared and primed as appropriate (see separate technical sheet) before application of Britannia Aquashield Waterproof Roof Coating.
Non-porous substrates:
- Slate, Polished bricks should be power washed abraded and completely dry, free from any contamination to achieve adhesion of the Britannia Aquashield Waterproof Roof Coating
Bitumen surfaces:
- Discolouration may occur over a new asphalt, tar or bitumen surfaces; therefore an extra coat may be required, for decorative purposes only. Aged bitumen can be liable to crack, therefore further advice must be taken
Previously painted or coated substrates:
- It is good practice to inspect and carry out adhesion tests on any existing coating or substrate prior to application of the coating
Splits, cracks, joints and seals, crazed areas:
- Pay particular attention to clean out any splits/cracks/joints and seals by scraping or brushing off with a stiff bristle brush before applying the Britannia Aquashield Primer. Repair all faults in the surface by using a proprietary filler
Surface faults:
In areas where excessive movement may occur, additional reinforcement must be incorporated into the coating.
Application
- To the dry and cleaned surface, apply a generous coat of Britannia Aquashield Waterproof Roof Coating by brush or squeegee
- Please follow the Coverage rates shown in Spreading Rate Section
- Apply between 5°C - 25°C
- As dictated by normal good painting practice. In confined spaces, provide adequate ventilation during the application and drying
Cleaning
- For all cleaning use White Spirit
Shelf Life & Storage
- Up to 2 years if stored correctly in an unopened container
- Store in a safe place in accordance with the instructions in section 7 of the relevant MSDS sheet
Precautions
- Flammable keep away from sources of ignition
- Ensure good ventilation during application
- Wear gloves, goggles and suitable protective clothing
- Over occupied premises during insulation of coatings we would advise keeping windows closed
- In case of contact with eyes rinse immediately with plenty of water and seek medical advice
- Remove splashes from the skin with a recognised hand cleaner or plenty of soap and water
- Keep out of reach of children
- Do not use near fishponds
- Harmful to aquatic organisms. May cause long term adverse effects in the aquatic environments
- Do not empty into drains
