need to build a dividing wall between the loft space of a semi-detached house.what method would be the most pratical and cost effective ?

if it is a fire break between you and the neighbours i would use 4x2 studwork with fire proof plasterboard then seal any gaps with intrumiscient mastic.

Block work will be the best. if its a 225mm wall then lay them on the flat or 100mm lay them normally with a 5 x 1 mortar mix this will be ok for a fire break wall. use thermalite blocks.

I assume you mean the party wall between your loft & next door.It is possible to build this out of studwork and double tack it to meet fire regs.You would need to consult building control & obtain building regs.

A stud wall will definatley be the easiest due to getting materials in to the loft. They are also relatively lightweight in comparison to block or brickwork. Is there currently no dividng wall at all? If the purpose of the wall just to create a secure usable loft space? If so I would use timber stud work and sheets of thin ply or plasterboard to face it. Obviously the sheet you use will need to fit through the loft hatch. You can get very small plasterboard sheets from the likes of b and q. Plywood could be cut to size to fit through the hatch.

4x 2 is always the best way to go,

there are two ways either stud wall and plaster board or block work the first is the easiest and cheapest less labour intensive

Studwork and firegrade plasterboard

Hi there the best way would be to build a stud wall lined with 12mm ply as this would not put any stress on the celling joist or require any steels to take a block wall hope this helps... N.L.M Plastering & /Carpentry Services

Hello, if your dividing it from another property it should be 4"/ 100mm brick or block, for fire reasons. if it is to divide your own loft space the a timber stud wall will do, the is muck easier and cheaper. regards chris