Now as a complete novice in this field please forgive me if I use some wrong terms for roof parts. I have a problem in my loft space which annoys me and that is the lay out of my roof supports get in the way when walking around the loft. There is a central 4x2 from the joist to the ridge and either side of that there are ties that connect the joist to the rafters which are slanted. I have to duck under these all the time, so I was wondering if it would be possible to resite them further back along the joist in the virtical. Would this be detrimental to the stability of the roof construction. If this is not possible is there any other way I can get rid of this problem.