Z
zippy
Folks,
1950's 3-storey town house, flat roof with no roofspace access on top floor, laminate flooring throughout apart from a few bits in hall and landings ... and I need to run new lighting circuits to all 3 floors, CU on ground floor.
On quick inspection looks like it is riddled with metal conduit from switches and even to roses and using individual conduit wires with no earth. Had a quick look in one rose and only 3 conduit wires connected, so guessing there are a good few junction boxes up there too!
There is a small boxed void that runs top to bottom from CU on ground floor, through kitchen on first floor and up to bathroom on top floor, so I can get my runs up from CU to each floor easily, but beyond that I am struggling if I can't lift any floorboards.
Anyone out there dealt with anything remotely similar? Any tips on getting my runs out to existing switches and roses?
Is possible to do this from below via ceiling? I can probaby get runs started where they run parallel with the joists but at some point I have to cut across a whole load of joists before I can come back on myself parallel to joists again in a u-shape.
Is it allowable at all to notch the joists at ceiling edge and cross this way, or any other tips?
Guessing for switch-to-rose runs I will struggle to use old conduit to pull through new t+e so guessing I will just have to cut new channels as everything needs to be hidden?
Any help/advice/tips would be much appreciated ... and that's putting it lightly!
Thanks
Zippy
1950's 3-storey town house, flat roof with no roofspace access on top floor, laminate flooring throughout apart from a few bits in hall and landings ... and I need to run new lighting circuits to all 3 floors, CU on ground floor.
On quick inspection looks like it is riddled with metal conduit from switches and even to roses and using individual conduit wires with no earth. Had a quick look in one rose and only 3 conduit wires connected, so guessing there are a good few junction boxes up there too!
There is a small boxed void that runs top to bottom from CU on ground floor, through kitchen on first floor and up to bathroom on top floor, so I can get my runs up from CU to each floor easily, but beyond that I am struggling if I can't lift any floorboards.
Anyone out there dealt with anything remotely similar? Any tips on getting my runs out to existing switches and roses?
Is possible to do this from below via ceiling? I can probaby get runs started where they run parallel with the joists but at some point I have to cut across a whole load of joists before I can come back on myself parallel to joists again in a u-shape.
Is it allowable at all to notch the joists at ceiling edge and cross this way, or any other tips?
Guessing for switch-to-rose runs I will struggle to use old conduit to pull through new t+e so guessing I will just have to cut new channels as everything needs to be hidden?
Any help/advice/tips would be much appreciated ... and that's putting it lightly!
Thanks
Zippy