by markusb »
Mon Oct 17, 2022 11:42 pm
Thanks S,
That’s really helpful. We would definitely be staying within boundaries of our flat, which is easy as there are concrete ceilings between us and our neighbour above. Two follow-on questions:
1) Ideally we would re-route the metal ventilation duct so that it tightly tracks the contours of the living room with our newly heightened ceiling. That would mean a 90 angle as the duct exits from the bathroom and another 90 degree angle to track across the living room ceiling. And then same again down the other side of room to use the existing vent on the exterior wall. Would those sharp 90 angles also be ok?
2) The lowered false ceiling is made of plasterboard and there’s only a small layer of generic yellow insulation material scattered over it. That does not look to me like a “fire-resistant break”, but what do you think?