Plastic strip along the sill?

[maltenpersson]

Hello,

During the panel replacement, I also removed the old asfaboard. I then discovered that there was a 25cm wide "plastic strip" along the outside of the sill and partway down the plinth/slab.

Is it supposed to be like that? I'm wondering if it would ventilate better without the plastic?

Attached is a picture.

 

[DWIN]

I don't know if it's "normal," but from a construction technical perspective, it is strange to limit a potential outward moisture flow, even if the plastic only covers a small part of the wall. Maybe there's a carpenter who knows?

 

[Pucco]

It protects the sill from water that penetrates the panel during driving rain or due to wind pressure, and then flows down the asphaboard towards the base/sill.

 

[Raka]

Why remove the asfaboard? I have replaced the panel myself but never removed the asfaboard.

 

[maltenpersson]

Thank you for your responses!

Some parts of the asfaboard were replaced as some were in poor condition, cracked, etc. Those that were in good condition were left in place.