LABC say I need to build a fire lobby to put 2 fire doors between the flat's living rooms and common entrance hall. Listed building consent say I must not hide the coving on the ceiling, so I'll need to construct a 30 minute fire rated internal roof to the lobby. This roof will no doubt be used for light storage so will need to be fairly strong. The lobby will be about 1.2m x 0.8m and about 2.2m high. The lobby will have one extra 30 minute fire door and a 30 minute glass window for borrowed light.
I have the Planning Surveyor coming next Thursday, so I want to be fairly clear about what I propose to put up to show off their precious Georgian coving. The whole thing's a bit of a joke as the Victorians cut away a chunk of coving to put in a bay window and there is a boxed in soil pipe in another corner.
I am thinking of a 12.5mm plasterboard internal ceiling, 50x50x800 joists at 400mm centres, 18mm chipboard floor, 12.5mm plasterboard again and finally 6mm ply on top. The bottom layer of plasterboard will be continuous with the lobby's internal walls. The top layer of plasterboard will be continuous with the lobby's external (living room side) walls.
I have the Planning Surveyor coming next Thursday, so I want to be fairly clear about what I propose to put up to show off their precious Georgian coving. The whole thing's a bit of a joke as the Victorians cut away a chunk of coving to put in a bay window and there is a boxed in soil pipe in another corner.
I am thinking of a 12.5mm plasterboard internal ceiling, 50x50x800 joists at 400mm centres, 18mm chipboard floor, 12.5mm plasterboard again and finally 6mm ply on top. The bottom layer of plasterboard will be continuous with the lobby's internal walls. The top layer of plasterboard will be continuous with the lobby's external (living room side) walls.
