Landing ceiling is in need of replacement. I had a vague notion of a vaulted ceiling above the stair well. What are the pros and cons? Obviously 2 main cons are harder to heat and more costly insulation. But air is easy to heat and provided insulation is good enough should not be a problem and anyhow this is a landing where cooler temperatures are acceptable.
Plan:
---------------------------------- exterior wall | | | stairwell | | | r | : | o | : | o | : | bedroom m | : | | : | | : | |............ | / | | ../ | | landing | x \ \
---------------------------------- exterior wall
The 2 walls diving the stairwell are supporting walls, the only extra wallage is a span over the landing at 'x' on the plan. Roof construction is 30's purlin, original timber and tiles. I need to provide structure to stop rafter splay in lieu of the ceiling joists.
How do I form the insulation in the rafters, vapour check etc Other considerations... or is this mad? I take it this is BCO notifiable.