Our method of choice to first apply zinsser peel stop triple thick primer which is a water based acrylic binding primer designed to penetrate and stop previous coatings from peeling.
Painting asbestos house siding.
Painting cement asbestos siding or non asbestos fiber cement siding is in part a cosmetic decision.
Paint for asbestos cement siding works by creating a permanent polymer based barrier between the asbestos and the elements.
Do not throw or drop removed asbestos siding.
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.
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Work from the top down removing the snails to keep from breaking the asbestos siding.
The danger of asbestos lies in the particles that escape and can be inhaled.
Allow the primer to dry completely.
One concern when repainting this type of siding is the small gaps between the shingles.
Besides the need to create a good surface for painting asbestos siding there are two other areas of concern.
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.
Begin by analyzing a paint sample for lead content.
Wrap asbestos siding in 6 mil thick plastic sheeting and secure the plastic with duct tape or place the debris in heavy duty plastic bags.
Begin painting the siding with your choice of brushes and rollers making sure to check often for runs.
Untouched asbestos is just as safe as any other siding or insulation.
Painting asbestos siding once we have cleaned and prepared the surface then there is really no difference when it comes to painting.
Painting asbestos siding is often a much better alternative than trying to remove it.
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.