Removing dirt oil and debris is just one part of a two part process to prepare a tin roof for painting.
How to repaint a tin roof.
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.
Painting a metal roof introduction.
First use the wire brush to remove the.
This information is aimed at the residential customer but can easily pertain to a commercial application as well.
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.
Painting a roof can be a difficult job that takes a long time so you should consider hiring professional painters to do the work.
Newly installed metal roofs should be allowed to weather for at least 6 months before you apply paint.
Step 2 prepare the metal.
If the project cannot wait wash off oils and other remnants of the galvanizing process with a weak acid such.
The roof should be swept clean of debris every few weeks to prevent small pests from finding a home in leaves dead branches or long lost golf balls.
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.
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.
For a new and unpainted roof allow it to weather for six months before painting it.
Try to achieve a slightly abraded texturized finish as this helps your new paint bond with the roof finish.
Rust will also be the death of an otherwise great paint job.
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.
To clean a metal roof wait for a dry overcast day and make sure you have a partner to help you for safety reasons.
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.
One issue that tin roofs have especially older ones is that they can get worn out and rusty rather quickly.
Sand the entire metal roof surface very lightly with your wire brush or sandpaper.