Like others I have taken my 400x400 Heki down for cleaning by removing the two torx screws from the sprung handles and gave it a good wash and scrub up, the Heki is in two sections outer and inner they are fixed by four screws which on inspection are reached by using an extended torx screwdriver which you pass through two holes in the handles, but I have read a couple of posts that say you should not take apart the Heki, and on the other hand someone says they have taken the roof light apart, have any of you done just this?,