Sunlight degrades the unfinished wood surface thus it will never hold paint as well as fresh wood.
How to remove paint on exterior wood siding.
Scrape any loose paint from the siding.
You can also use heat to remove exterior house paint.
Unfinished siding exposed to several weeks of sunlight before painting needs to be sanded.
Thoroughly clean the painted surface with degreasing cleaner dish soap or household cleaner and allow to dry.
Saturate all of the siding completely avoiding windows.
Removing paint with heat.
Start with coarse 80 grit sandpaper in a manual hand sander or power sander.
Spray the painted wood siding thoroughly using a ladder to reach high areas if needed.
Whatever tool you use careful not gouging surface underneath.
The more brittle easier paint can be lifted up scraped chipped away.
A heat gun or an infrared paint remover will heat up the paint so it peels effortlessly away from the wood.
A sharp rigid putty knife or a blade designed just for paint scraping is your best bet.
Make sure to wear a dust mask to keep from breathing the paint dust.
To use sandpaper or a power sander to remove paint.
You ll minimize the dust and you ll have better control than if you used a sander.
Best way to scrape paint off old paint on wood siding is first having a dried surface to work with.
This is a great technique if you want to avoid sanding after scraping paint or you don t want to use chemicals.
Hold it over an area for 20 to 30 seconds give it a quick scrape and all the paint layers come off down to the bare wood.
If necessary remove any knobs hinges or other hardware from the wood being sanded.
Once exterior siding thoroughly dried paint will be much easier to scrape off being much more brittle.
Scrub the siding well to make sure there are no paint chips remaining.
It s lightning fast said clark.
The silent paint remover heats to a maximum temperature of only 500 f well below wood s immolation point.