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.
Preparing asbestos siding for painting.
Besides the need to create a good surface for painting asbestos siding there are two other areas of concern.
Use tsp with both if you can get it in your area.
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.
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.
Thinking of pressure washing and allowing to dry for a couple of days.
Start at the top of the house and work your way down aiming the nozzle downward and keeping it moving constantly.
Congratulations asbestos cement siding is durable holds paint exceptionally well and is fire proof.
Then be sure that the siding is dry before applying either primer or paint.
I m placing a bid on painting this house with this type of siding.
When you are done cleaning paint the siding with a suitable primer.
Surface is chaulky with very little flaking.
It is hard to top.
Preparation before coating is the key to a successful paint job.
Pressure washers are over rated.
Here at top coat painters we dial down the pressure and use a 4 step process.
Begin by analyzing a paint sample for lead content.
You must be careful not to damage the wood while doing so as the water pressure is strong.
Jomax is good product to use and all you need is a pump up garden sprayer and a hose to use this product.
We rinse with plain water to pre wet the surface and remove very loose dirt.
Allow the primer to dry completely.
That said you ll still need to take some precautions if you decide to paint your asbestos siding.
On preparing the surface for paint.
Maybe add a mild cleaner that wont harm the plants.
Use a long handled brush and detergent.
One concern when repainting this type of siding is the small gaps between the shingles.
We apply a soap mildew killer under very low pressure and allow it dwell on the substrate for aprox 10 to 20.
You do not want to scrape or sand the shingles directly as you could release asbestos but.
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.
We do a final rinse again.
Use bleach for stuff that is growing green.
