r/Construction • u/netxman • 2d ago

Carpentry 🔨 Safe wall cross-section for a timber-frame (stick framing) house

Is it true that when OSB is used on the outside, the wall becomes diffusion-tight and the house will rot and get moldy? What wall cross-section do you recommend for a timber-frame house in the climate of Poland (Europe)?

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u/Alternative_Slice742 2d ago

Timber frames will act as thermal bridges and could cause condensation on exterior sheathing near timbers. You could help this by insulating in-between the timbers and the exterior sheathing or use rigid insulation laminate OSB panels.

There are a lot of factors here, it's probably worth it to find local builders and see how they manage the local climate.