Can Stud walls be structural

[middy962]

I live in a chalet style house, bungalow to most people, but my darling wife insists I call it a house.

My planning has been refused to extend the dormer at the front of the house to give me a larger bathroom, now my only option is to extend into the roof void. The bathroom will not be as large as I wanted and the ceiling will slope, he! ho!.

I have looked inside the roof void and exactly where I want to build my new stud wall for the extended bathroom is a purlin supporting the roof. This is fixed into the outer wall at one end and the wall of the dormer at the other.

My question is can I replace the purlin with a timber stud wall and how should it be constructed, size of timber etc. etc :

 

[noseall]

Stud walls can be structurally supporting but they do require adequate foundations, as in timber framed buildings.

 

[middy962]

Cheers Noseall my first reply to my first problem, only joined this evening.

So it should be OK. I'd planned to pin two floor joist together stick them in the wall at one end and the other end into the I beam which supports the dormer wall. Then build my stud up, should I have a header plate or just attached the studs to the individual roof joists

 

[noseall]

Believe me, it is always simpler and easier to have a header plate.