Adjust the pressure on the power washer to light and gently knock off any dirt or debris that may.
How to prep wood siding for paint.
Fill any dents and holes with either a wood or epoxy filler.
Preparing wood siding for painting cleaning the siding scraping and sanding loose or peeling paint.
Clean the entire surface with soap and water or a pressure washer to remove any dirt and grime that s built up over time.
If the majority of your siding is bare or at least close to half then you will want to apply primer to the entire area.
With old buildings such as my 130 year old barn water blasting the loose paint is not a recommended practice.
Fill holes and make.
Using a good quality exterior wood primer will give your siding a solid base over which to apply your exterior paint.
Generally applying one coat of primer is sufficient.
Sand the cured filler with a hand sander to make it smooth and level with the surrounding wood.
Make sure you apply primer to all spots of bare wood.
Paint tends to peel or flake near joints between dissimilar materials think siding and trim window frames and glass etc.
Apply caulk where needed.
Remove any loose paint or debris.
Preparing exterior wood for painting isn t difficult but it does require some prep work to ensure that your new paint has a smooth stable surface to adhere to.
How to prep weathered wood for painting.
Remember that covering all bare spots is vital.
X research source for smaller surfaces like furniture you can use a scrub brush or a metal scrapper.
We used the paintable wolmans woodlife classic clear wood preservative if the wood was paint free.
Apply an epoxy consolidant to soft wood and coat the rest with a wood preservative.
If the wood grain has lifted after wood cleaning or if the wood appears furred use 120 grit sandpaper to smooth the surface.
This is where water seeps into cracks and soaks into the wood causing the paint to peel.
How to prep and paint wood siding power wash the siding.