hi there,

I am planning to put up framed insulation on existing basement walls as follows:

oldroyd damp membrane
studwork with insulation between battens
plasterboard
plaster skim

the question is how deep should the battens be and how deep should the insulation be? Also what type of insulation is best for this application?

Any ideas appreciated.

Don't use battens....Gypline it. A lot quicker and a lot easier to do.

I'll check out the gypliner system, can you add insulation behind it?

I have access to discounted timber, so battens seem a good bet for the moment.

Do not gypline it but build a 70mm stud wall using gypframe (or richter which is cheaper) against the existing wall and secure it to floor and ceiling being careful not to pierce the damp proofing in the floor or wall and gap filling foam half way between the two. then fit 50mm kingspan or celotex between the studs and plasterboard over the top.

Alternatively bond insulating plasterboard to the wall using bonding compound and skim.

Try british gypsum's website and look at minsters or sheffins who actually supply these products direct.

Gypliner needs to have brackets securing it to wall which takes the flex out of it. As you were screwing batten to walls this is why it was suggested.

As Jozeffo has pointed out best way to do it without actually having to put a fixing through the membrane is to use stud and track.

Thanks for the advice.

I am considering using resilient bars to aid soundproofing on this wall.

As these decouple the boarding so that it can flex I am wondering whether it would cause cracks in the skim coat where the wall joins the ceiling?