Hi, Sorry but cannot find a specific ref to my query so can you please help. I know that a room say 3 x 3 mtr is a floor area of 9 square metres...BUT... how do I work out a floor area of a say a route that goes from c/u up wall and along the loft and then down a wall (for a radial) or indeed for ring to come back up the wall the same route back to the c/u?
OR.. does floor area mean just final destination location ignoring the loft and up/down wall part of getting there?
I can work out cable length simply by measure - but this floor area bit is confusing.
I have seen refs to the WHY floor area is to be known - eg heating required for that space. Therefore, I cannot see why a loft or wall should come into the equasion if the final destination is a small 3 x3 metre room.
Hope a spark can enlighten.
Thank you.
OR.. does floor area mean just final destination location ignoring the loft and up/down wall part of getting there?
I can work out cable length simply by measure - but this floor area bit is confusing.
I have seen refs to the WHY floor area is to be known - eg heating required for that space. Therefore, I cannot see why a loft or wall should come into the equasion if the final destination is a small 3 x3 metre room.
Hope a spark can enlighten.
Thank you.