Re: if you do unit improvements do you compensate other unit owners?

Thanks Flame Tree and Scotlandx for your advice. Cos you know strata stuff, I wonder if you could answer the following?

Can an “exclusive use” bylaw be overthrown by other owners?

The previous lot owner, who had “exclusive use”, damaged the roof by hammering floorboards into the waterproof membrane, but every lot owner had to pay to get it fixed (and still do if there’s damage caused by us). Does this weaken our hold on the “exclusive use” area? 

If this background helps, apparently many years ago the lot owner paid $20K to the other owners for “exclusive use” to the roof (almost the footprint of the building).

Thanks again for your help.

(PS, I’m not really a cowgirl – more a guerrilla gardener.)