Painting 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.

Painting asbestos siding.

Unfortunately asbestos never remains truly untouched because of nature. 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. Painting cement asbestos siding or non asbestos fiber cement siding is in part a cosmetic decision. 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.

Asbestos cement was first developed in 1905 by the johns manville company who became one of the premier manufacturers of cement asbestos materials. Asbestos cement is a mixture of portland cement reinforced with asbestos fibers. 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. Painting asbestos siding is often a much better alternative than trying to remove it.

Paint for asbestos cement siding works by creating a permanent polymer based barrier between the asbestos and the elements. 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. The danger of asbestos lies in the particles that escape and can be inhaled.

Let the siding dry then prime and paint with the best exterior latex you can find. Untouched asbestos is just as safe as any other siding or insulation. Unless asbestos siding is disturbed it doesn t pose a significant health hazard and does not need to be removed. The portland cement binds asbestos fibers into a hard mass.

Installing vinyl siding will require disturbing the asbestos by nailing into it. Begin by analyzing a paint sample for lead content. Besides the need to create a good surface for painting asbestos siding there are two other areas of concern. A brief history of asbestos cement siding.

Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s. Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely. 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. Preparation before coating is the key to a successful paint job.

Begin painting the siding with your choice of brushes and rollers making sure to check often for runs. One concern when repainting this type of siding is the small gaps between the shingles.