Hi,
I am new here and wondered if anyone had any advise of the following.
We are completing a self build for the first time, its timber frame with a block and render outer. We have been careful to use a VCL over the whole of the inside and also in the loft also, all joints taped (I hope well enough). I am nervous a about the airtest and have been reading that I need to seal the plasterboard to the floor before finished floor then skirting, which will also be sealed. What do I do here, seal with mastic type product or is there something else?
Many thanks