[Hippocrates]

I'm definitely no wood nerd but, yeah, I wouldn't intuit that a softer, new-growth wood would just disintegrate in 100 years time, or much more, for that matter.

As you allude to the material around it, we now have engineered, weather resistant sheathing, house wrap, and vinyl or metal siding, or some such very weather-proof stuff.

Most of the issues I have had with "old growth" wood in my 17th century homes were just due to water penetrating where it should not, rotting that wood, and then causing me a headache trying replace it with a similar material.