When you say asbestos shingles i presume you mean asbestos siding shingles.
Painting cement asbestos siding.
You can power wash any loose paint or simply scrape and remove any.
There are two common versions for use on homes apartment buildings or commercial structures.
Begin by analyzing a paint sample for lead content.
Allow the primer to dry completely.
It s not difficult at all to paint asbestos siding as one of its benefits is that paint easily adheres to it and it is very durable and can last for decades without chipping or cracking.
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.
We have rarely seen this material in a worn friable condition but should that occur one might paint the surface also to stop fiber shedding and to preserve the material.
Unlike more porous siding materials such as wood clapboard asbestos cement siding will not quickly soak up paint which allows it to be painted more easily.
These are easily prepared and easy to repaint.
Painting asbestos siding is often a much better alternative than trying to remove it.
Where acm cannot be removed and must be sealed painted coated or cleaned there may be a risk to health.
Besides the need to create a good surface for painting asbestos siding there are two other areas of concern.
Begin painting the siding with your choice of brushes and rollers making sure to check often for runs.
Sealing painting coating and cleaning of asbestos cement products as a first priority removing asbestos containing material acm must be considered.
The danger of asbestos lies in the particles that escape and can be inhaled.
Such tasks can only be carried out on acms that are in good condition.
This version allows you to paint the fiber cement siding in whatever color scheme you choose after installation.
One concern when repainting this type of siding is the small gaps between the shingles.
Untouched asbestos is just as safe as any other siding or insulation.
Painting cement asbestos siding or non asbestos fiber cement siding is in part a cosmetic decision.
Painting asbestos siding once we have cleaned and prepared the surface then there is really no difference when it comes to painting.
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.
Unfortunately asbestos never remains truly untouched because of nature.