Cavity wall: does it need a vapour barrier?

[Recci]

hi, I was wondering if anyone could help me? The plasterboard will be fixed using the dot and dab method. For internal moisture do i require a vcl barrier? Or does the foil facing insulation within the cavity have a intergated vapor barrier inner face

 

[noseall]

hi, I was wondering if anyone could help me? The plasterboard will be fixed using the dot and dab method. For internal moisture do i require a vcl barrier? Or does the foil facing insulation within the cavity have a intergated vapor barrier inner face

No need for an internal VCL, in this case.

 

[Recci]

No need for an internal VCL, in this case.

Why?

 

[noseall]

Why?

It's not a timber construction.

 

[Recci]

It's not a timber constructions

 

[Recci]

How do you stop internal water vapour damaging the permeable blockwork?

 

[noseall]

How do you stop internal water vapour damaging the permeable blockwork?

Water vapour does not damage the blockwork or the masonry as a whole.