Stud partitions sequence of build question.

[Brian Ireland]

Stud partitions sequence of build question.

2 options I see:

A. Airtightness membrane to underside of joists, then batten ceiling, then stud partitions.

This keeps service void free, is fixing head plate to battens ok?

 

B. Stud partitions to underside of joists, then airtightness membrane, then batten

How do services go through stud here though

 

House is 70,s with site made truss roof. All internal walls stud partitions removed to reconfigure layout

[JohnMo]

26 minutes ago, Brian Ireland said:

A. Airtightness membrane to underside of joists, then batten ceiling, then stud partitions.

This keeps service void free, is fixing head plate to battens ok

This is how I did mine on all walls that were not structural. I also have service voids on the walls so the first vertical stud was also 50mm from the external wall to maintain the gap. The gap filled with mineral wool to stop sound travel later.

[Nickfromwales]

On 29/07/2025 at 12:12, Brian Ireland said:

Stud partitions sequence of build question.

2 options I see:

A. Airtightness membrane to underside of joists, then batten ceiling, then stud partitions.

This keeps service void free, is fixing head plate to battens ok?

 

B. Stud partitions to underside of joists, then airtightness membrane, then batten

How do services go through stud here though

 

House is 70,s with site made truss roof. All internal walls stud partitions removed to reconfigure layout

A is best IMHO.

 

What is your plan for AT everywhere else? What is the house (brick and block?) as you may be better off going straight to AeroBarrier after you've done the membrane at the ceiling and you've foamed around windows etc.

 

Next question would be about AT at the ground floor...