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.
Note: Refer to the PDF flowchart for a visual of the steps below:
Wash thoroughly using Resene Roof Wash and Paint Cleaner then rinse thoroughly
Apply Resene Galvo One (apply 2 coats in exposed marine environments)
Wash between coats if salt is suspected - Refer notes
1 To optimise the benefits of the Resene Cool Colour topcoat use Resene Cool Primer.
Just when a galvanised roof should be considered ‘weathered’ is a judgement call. Typically weathered galvanised iron or Zincalume will be dull, almost mottled in appearance. Almost certainly white rust will be starting to form.
Old unpainted roofs will eventually start to rust as the protective galvanising layer erodes and the iron is exposed. If it is not too bad, say a ‘dusting’ of red rust in a few places, rather than a heavy red rust colour, then apply a second coat of Resene Galvo One on these areas. Alternatively Resene Galvo-Prime or Resene Cool Primer may be used as the second coat.
Any salt that is deposited on the roof between coats or after preparation must be rinsed away. In practise this means if the roof is near the sea and there has been an on shore breeze, hose the roof down and allow to dry before applying the next coat.
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