Greg starts the video by asking viewers if they should use particle board for fascia board or other exterior trim. He then shows a picture of a roof fascia that has been damaged by water, then says that the fascia is made of particle board and that it has warped and rotted. He blames the problem on the fact that particle board is not a good material for exterior use.
Then goes on to talk about the problems with using particle board for exterior trim. He says that particle board is not as strong as plywood or other types of wood and also says that particle board is more likely to absorb water and rot.
Here are some bonus tips
If you are going to use particle board for exterior trim, be sure to pre-paint it before installing it.
Use a good quality paint that is designed for exterior use.
Inspect your exterior trim regularly and repair any damage as soon as possible.
