Yeah the failure of this siding is partly the fault of the siding manufacturer most often not masonite the term masonite is erroneously applied to all hardboard siding and partly the fault of the paint.
How to remove paint from masonite siding.
Over the weekend the painter we hired one of those unfortunate friend of a friend situations came over started painting i left to run an errand and returned 45 minutes later to no painter paint sprayed extremely thick over the windows.
Attach the high pressure spray nozzle to your garden or water hose and rinse the hardboard siding area that you wish to clean.
This will also be a cause for its decay.
You can seal and paint the siding if it s in decent shape but you should replace rotted masonite siding.
1 sand the siding lightly with 80 grit sandpaper or a sanding block to remove loose bits of.
Loosen the nails found at the top of the damaged siding using a pry bar and hammer and remove them completely.
As such it is bound to attract insects.
If needed replace the sheathing behind the siding using 1 2 plywood covered with builder s felt or housewrap.
Use a pencil to clearly identify the area.
Remove the damaged area.
Masonite is nothing but thickened wood fiber.
Cracked exterior paint will expose the masonite and subject it to the harsh weather conditions causing it to wither away.
Use a ladder to reach higher sections of siding but use caution to avoid falls.
Using the high pressure spray nozzle attempt to remove as much dirt dust and grime as possible before cleaning with soap and water.
Use a paint scraper to carefully scrape away all existing paint.
Step 2 scrub the hardboard siding.
Work gently to avoid damage to the masonite.
Removing paint from masonite siding.
The earlier hardboard siding generally was tempered at least on one face and reasonably impervious to water.
Step 1 pre rinse the hardboard siding.