Currently building a sunroom, and it's constructed as follows from outside to inside:
- Balcony slab extending from the upper floor with polycarbonate sheets attached at the front
- Air gap of 40mm
- Plastic sheeting
- Air gap of 20mm
- Stone wool 70mm
As it stands, a lot of moisture is forming that becomes water above the stone wool. We placed the plastic to prevent moisture from the balcony slab above from reaching the insulation, but now we notice it's instead causing problems from the inside...
Does anyone have an idea of what should be done? Replace the plastic sheeting with something like Isover Vario Xtra or windbreaker fabric, or introduce some form of fan to ventilate the space?
