Surface is chaulky with very little flaking.
Preparing asbestos siding for painting.
Be sure to use both a primer and top coat that are recommended for use on cleaned fiber cement siding as recommended by the manfacturer of both the siding and the paint.
Allow the primer to dry completely.
That said you ll still need to take some precautions if you decide to paint your asbestos siding.
Use bleach for stuff that is growing green.
We rinse with plain water to pre wet the surface and remove very loose dirt.
Thinking of pressure washing and allowing to dry for a couple of days.
I m placing a bid on painting this house with this type of siding.
On preparing the surface for paint.
Pressure washers are over rated.
You do not want to scrape or sand the shingles directly as you could release asbestos but.
Here at top coat painters we dial down the pressure and use a 4 step process.
It is hard to top.
Start at the top of the house and work your way down aiming the nozzle downward and keeping it moving constantly.
The first is the possible and almost certain presence of lead based paint on the siding and the second is the asbestos in the siding itself.
Painting asbestos siding compared to other similar hardie board or fiber cement siding there is not much difference in terms of painting asbestos siding after you prepped and cleaned the surface.
When you are done cleaning paint the siding with a suitable primer.
You must be careful not to damage the wood while doing so as the water pressure is strong.
Congratulations asbestos cement siding is durable holds paint exceptionally well and is fire proof.
Powerwash the siding to remove any excess dirt or paint with a low pressure pressure washer.
Preparation before coating is the key to a successful paint job.
Besides the need to create a good surface for painting asbestos siding there are two other areas of concern.
You can roll it or brush it on but make sure you get under the small lip at the bottom of each asbestos siding shingle.
Use a long handled brush and detergent.
We apply a soap mildew killer under very low pressure and allow it dwell on the substrate for aprox 10 to 20.
Begin painting the siding with your choice of brushes and rollers making sure to check often for runs.
Jomax is good product to use and all you need is a pump up garden sprayer and a hose to use this product.
The biggest concern is that you should avoid power washing asbestos siding as it can chip or damage the siding and release dangerous asbestos fibers into the air.
One concern when repainting this type of siding is the small gaps between the shingles.
Maybe add a mild cleaner that wont harm the plants.
Then be sure that the siding is dry before applying either primer or paint.