Patio door cavity filling

[Jamespf1]

Hi all,



what can I do to bridge between my patio door cavity? Can I do L sharp with DPM running up the back of the patio door side and filling with screed?

thanks

 

[Jamespf1]

 

[akist]

How did you close or cover the cavity in the end? How deep is it?

 

[Jamespf1]

I put a wide DOC at the bottom and up the sides and filled I’m with concrete. Was about 150mm deep. Can’t remember if I put insulation at the bottom