Painting the house - sanding the wood?

Hello,

we want to give the bungalow and garage of my parents a bit of new color. It is now about 30 years old.
We would repair cracks with Fassaden Rissdichter (a kind of acrylic) as well as smaller damages to the plaster with silicate plaster.

The roof overhang is made of wood and is to be painted lighter. The question now is whether all the wood needs to be sanded or if it can also be painted in its current condition? Of course, we would prefer if there is a way to paint the wood without sanding.

We want to repair small damages to the base with base plaster.

At the end of the day, we do not expect quality like that of a painting company, so it does not have to be 100% perfect. We just want to improve the house a bit with our means.

Best regards

You can't say now just based on a picture. To me, it looks like your wood was treated with Carbolineum. You could smell it to see if it smells like tar. Then it would be that. I wouldn't sand it off. It could contain toxins. Still, first clarify what kind of wood treatment it is. After that, you can and must decide further. Carbolineum also doesn't make sense to sand off, as it penetrates deeply into the wood. But as you can clearly see in the picture, it holds.

It looks to me as if your wood was painted with Carbolineum. You could try smelling it to see if it smells like tar.

Unfortunately, we can no longer ask the person what it was painted with. However, it does not smell like tar. In our opinion, it was a wood preservative glaze.

It's hard to say anything about that if you don't know the color used. I always have leftovers in the basement.