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Hi, im in the process of planning my new loft conversion and have already had architects and structural engineers draw up plans which are not exactly what we had requested and im hoping someone could advise on some issues of disagreement.
1) we wanted to keep the loft Purlins in and remove the 2 props supporting it, and instead install the steel beams about 70cm directly below the purlins & support the Purlin with several 3x2 posts running off the top of these steels along the length of the purlin.
However the architect says the purling needs to come out and a box web structure built instead. This would restrict us greatly as we wanted that space beyond the purlin to remain as open as possible for storage.
2) we wanted the new loft floor to be suspended and totally independent from the existing ceiling, so that there is no noise produced for people in the bedrooms below when the kids are running around in the loft.
However the architect said this is not possible as the existing ceiling will sag and be unsupported (this makes no sense as its currently fine and a new suspended loft floor will not touch the ceiling so i fail to see why the ceiling would suddenly be unsupported) and has planned for the new loft floor joists to run alongside the ceiling beams and bolted together.
The loft space is large.
Party wall to party wall is 5.6 meters
Ceiling joists to ridge beam is 3.8 meters
There are two purlins on either side, 1 meter up and the second is about 2.4 meters up.
Any advise would be much appreciated
1) we wanted to keep the loft Purlins in and remove the 2 props supporting it, and instead install the steel beams about 70cm directly below the purlins & support the Purlin with several 3x2 posts running off the top of these steels along the length of the purlin.
However the architect says the purling needs to come out and a box web structure built instead. This would restrict us greatly as we wanted that space beyond the purlin to remain as open as possible for storage.
2) we wanted the new loft floor to be suspended and totally independent from the existing ceiling, so that there is no noise produced for people in the bedrooms below when the kids are running around in the loft.
However the architect said this is not possible as the existing ceiling will sag and be unsupported (this makes no sense as its currently fine and a new suspended loft floor will not touch the ceiling so i fail to see why the ceiling would suddenly be unsupported) and has planned for the new loft floor joists to run alongside the ceiling beams and bolted together.
The loft space is large.
Party wall to party wall is 5.6 meters
Ceiling joists to ridge beam is 3.8 meters
There are two purlins on either side, 1 meter up and the second is about 2.4 meters up.
Any advise would be much appreciated