If the unfinished wood was exposed more than 3 to 4 weeks lightly sand the surface to remove the thin layer of degraded wood before applying paint.
How to repaint old wood siding.
This is normally painted on with a paint brush.
Before painting wood siding proper preparation is critically important.
A helpful how to on preparing wood siding for paint with steps detailed diagrams and a video to help you clean scrape and sand more effectively.
Soon many will be painting over old exterior paint at some point even more who wishes it to last indefinitely.
Without good preparation all of the effort and expense that you invest in painting may be diminished by less than stellar.
With old buildings such as my 130 year old barn water blasting the loose paint is not a recommended practice.
Unfinished siding exposed to several weeks of sunlight before painting needs to be sanded.
Using a good quality exterior wood primer will give your siding a solid base over which to apply your exterior paint.
Wood cleaner can damage bare wood.
Sometimes it has a base color in it to make it easier to cover over the old color and the prepare for the.
Sunlight degrades the unfinished wood surface thus it will never hold paint as well as fresh wood.
The high pressure of the sprayer can knock those old boards loose and infuse the bare areas of wood with water.
Prime the wood siding with a wood primer.