This discoloration is most likely caused by a combination of excessive tannins leeching from the wood and mildew growth.
Painting old shingle siding.
Even then the paint is not expected to last long.
Semi transparent stains would never do this protecting much longer.
Once paint chips away because of the elements over time the entire roof will need to be.
Even unpainted cedar will last for years.
While extremely old cedar can be painted it requires heavy preparation.
Let the siding dry then prime and paint with the best exterior latex you can find.
Advice for painting fiber cement or asbestos cement building shingles or siding.
Cedar shakes are cedar shingles that naturally weather and are resistant to decay.
Lead paint wasn t outlawed until 1978 so it s sure to be present on siding going back to the 1950s.
Like most wooden shingles however especially when painted they require care and maintenance over the course of time.
Painting cedar however calls for some preparation.
Painting shingles is not a common request so many contractors are not familiar with the task and hence they refuse the job.
If the weather s too hot too sunny or even too windy the paint may.
Be careful when painting very old cedar siding.
In fact painted cedar shingle sidings can easily last for decades if they are professionally done.
Before you paint condition the siding with a specific type of bonding primer or the final coating will ultimately flake and peel.
Loosened photodegraded surface fibers and.
Covering old asbestos shingles with new siding may seem like an option too but it s not easy to do safely.
Surface preparation is the key to success when dealing with weathered wood.
The paint will begin to peel and the shingles may become stained and they will need to be repainted.
If you would like to paint shingle siding consider some critical points.
In our page top photo of badly peeling paint on fiber cement lap siding we suspect that the wrong paint was used the paint was improperly mixed a primer was needed or the paint was applied over a chalked or damp surface.
If new shingle siding no need to strip or try removing old paint not that you could do this 100 anyway priming painting is one of a solid type coating apt to blister bubble chip or peel.
Whether it is composed of wood or asphalt your shingle siding is ill suited for adhesion.
As a homeowner whether your property is new or old if you are interested in painting cedar shingle siding for your home then here are some frequently asked questions that you might want to go through.
Asbestos shingles are relatively strong but.
Where an unpainted shingle can be left alone for many many years painted shingles require more maintenance.