Bad loft conversion where chipwood sheets have been used instead of T and G boards. Sqeake like any thing. Adding screws to sheets only seems to make things worse Any easy solutions
Could be the edges of the sheets rubbing together. I'd be tempted to run a circular saw along all the joints to open them up a bit, but watch your depth setting!!
if you do this you have to watch out for the realy cheapskate installation where none of the chipborad joints are supported over a joist
Bad loft conversion where chipwood sheets have been used instead of T and G boards. Sqeake like any thing. Adding screws to sheets only seems to make things worse Any easy solutions An old trick that used to cure sqeaking floorboards was to put talcum powder on the joint.