Wall plate

[JackofAll]

Not sure if in the right section, can move if needs be. For airtightness at wall plate what production would you reccomend, we had to shim it up to 15mm.

[Russell griffiths]

Your vapour control layer on the ceiling needs to come down the wall and be taped onto the wall, then whatever method of air sealing you are doing for the walls gets lapped either over or under that, if you are dot and dabbing you dab over the ceiling membrane. 

Just imagine you need to draw a continuous line inside your house with no breaks in it. 

[JackofAll]

6 hours ago, Russell griffiths said:

Your vapour control layer on the ceiling needs to come down the wall and be taped onto the wall, then whatever method of air sealing you are doing for the walls gets lapped either over or under that, if you are dot and dabbing you dab over the ceiling membrane. 

Just imagine you need to draw a continuous line inside your house with no breaks in it. 

Perfect, thanks Russell.