(flaking paint and red rusting)
Resene Popular Paint Systems –
Roofing products and roof paint preparations: training notes
This web page is an edited version of the Resene Best System Selling training notes provided to Resene staff and is provided to enable you to gain a greater understanding of the substrates and paint systems you may encounter in your decorating project. It is impossible to cover all decorating scenarios in a single document, so if you are in doubt about any aspect of your project please contact Resene for assistance.
Select the roof product type you will be painting from the list below to view how to prepare and finish the surface.
Preparation flowcharts
Note: Refer to the PDF flowchart for a visual of the steps below:
Treat moss and mould with Resene Moss & Mould Killer
Thoroughly scrub using Resene Roof Wash and Paint Cleaner and a hard bristled scrubbing brush. Alternatively wash down using a high pressure waterblaster.
Scrape as necessary
Prime bare areas with Resene Galvo One. Apply second coat to any lightly rusted areas.
Topcoat options:
1 To optimise the benefits of the Resene Cool Colour topcoat use Resene Cool Primer
Older roofs that have been neglected often have flaking paint and ‘white’ rust and often some ‘red’ rusted areas. If the roof is badly corroded replacement is often a better option, either the entire roof or in some cases individual sheets.
While Resene Rust-Arrest primer is excellent for preparing rusted areas it does not adhere well to the adjacent galvanised surfaces. Resene Galvo One is an excellent compromise, applied in multiple coats to achieve a high film build on any lightly rusted areas.
An alternative is to use Resene Alumastic as a spot primer. It comes in 1 litre composite packs for this purpose.
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Colours shown on this website are a representation only. Please refer to the actual paint or product sample. Resene colour charts, testpots and samples are available for ordering online. See measurements/conversions for more details on how electronic colour values are achieved.
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