Newly installed metal roofs should be allowed to weather for at least 6 months before you apply paint.
How to repaint a tin roof.
For instance if you pick dulux 962 cool roof paint and want to get the necessary prep work done e g.
Painting a metal roof introduction.
Sand the entire metal roof surface very lightly with your wire brush or sandpaper.
Terne roofing was made by producing the shingles or roof panels out of one of several different types of base metal and then coating the panel with a mixture of lead and tin.
When you re ready to get started spray your roof using a garden hose with a spray nozzle attachment starting at the top of the roof and blasting downward so the dirty water runs off the sides.
Rust will also be the death of an otherwise great paint job.
Painting a roof can be a difficult job that takes a long time so you should consider hiring professional painters to do the work.
Removing dirt oil and debris is just one part of a two part process to prepare a tin roof for painting.
In fact even after painting a metal roof it is necessary to perform a cleanup washing down the roof with a mixture of bleach liquid detergents and water at least once every six months.
Terne metal has been phased out due to the public outcry about the dangers of lead even though no specific health threat was ever discovered coming from the use of terne metal roofs.
Step 2 prepare the metal.
One issue that tin roofs have especially older ones is that they can get worn out and rusty rather quickly.
For a new and unpainted roof allow it to weather for six months before painting it.
If the paint on your metal roof is starting to crack and peel or if you re tired of its color it might be time to paint your roof.
To clean a metal roof wait for a dry overcast day and make sure you have a partner to help you for safety reasons.
First use the wire brush to remove the.
If the project cannot wait wash off oils and other remnants of the galvanizing process with a weak acid such.
As long as you prepare the surface of your roof correctly choose the right primers paints and sealants and apply your products correctly painting your metal roof can extend its life and help make your home more energy efficient.
High pressure cleaning applying a primer coat and or two coats of acrylic cool roof membrane the expected total price for painting an average sized colorbond roof would sit at around 2 500 and you may get a warranty of up to 10 years.
Try to achieve a slightly abraded texturized finish as this helps your new paint bond with the roof finish.