Painting Advice for Weather
Affected Surfaces
The Road to Recovery....
Given the prevalence of recent weather condition across
eastern Australia this summer, here is some advice and assistance
for properties that have been affected.
What happens to painted surfaces that have been
submerged?
Painted surfaces that have come into contact with large
volumes of water react in different ways, depending on how long
they are immersed and how much water is absorbed. Typically, for
plasterboard, timber and cement sheet, the substrate expands and
swells initially, and then shrinks once the water withdraws.
Decorative coatings are not designed to withstand total immersion,
and blistering issues generally arise due to moisture being trapped
in the substrates behind the paint coatings. Coated steel and other
metals corrode when immersed in water, and this process is
accelerated if these substrates are subjected to total immersion
conditions.
Conduct an adhesion test
To ensure that previously painted surface is sound,
conduct an adhesion test. To do this, cut a small X through the
existing paint with a sharp blade. Press cellulose tape firmly
across the cut and then rip the tape off. If the paint comes
off, it is unsound and should be removed. Repeat the adhesion
test at random across the painted surface, to thoroughly test the
soundness of the area.
If you are unsure that the substrate is sound (dry and
undamaged), please contact a qualified tradesperson. In addition,
please remember that the product information provided here is to be
used in conjunction with the recommended product label
instructions.
Once an adhesion test has been conducted, you need to determine
which parts of your home can re repainted, and which areas
require surfaces to be replaced. Here is some quality advice and
product recommendations to successfully painting both weather
affected surfaces and also brand new surfaces.
Please select from the below images to find out more.
Interior
Surfaces Exterior
Surfaces

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