by alexpowers »
Thu Jul 24, 2008 3:26 pm
Need to be carefull with the weights you're loading onto the flooring,
If it was me I'd cut a roofing batten down to the 30mm and lay against the gable wall then get a long straight edge and put at a right angle to it,
then rip more battens down grading to other side of room, pin down and board over, sounds harder than is ask me if unclear and Ill be more specific.
second way
locate top of joists into Gable wall dig out 50mm above joist go downstairs jack up with acro's and scaffolding board fill lift gap underneath with blue slate - make good.
Second option better to call a pro :)
Hope this helps