I used to hate skimming ceilings where the holes have been cut out for the spot lights. Bits of wet plaster dropping over me when I lay on over them and bits of dry plaster dragging in to the work when troweling.
I came up with a simple solution though, I just scrim over them. 2 lengths of scrim is enough to cover the hole. Make sure they're about 60cm long. If they're too short the weight of the plaster can make them fall off (I found out the hard way).
Only takes a couple of minutes and once that's done it's like skimming a ceiling with no holes in . Just cut them out with a stanley (best to use a new blade) towards the end of the hit. You won't lose where they are as they bulge down a few mm due to gravity early on and when they've nearly gone off (they're flat by then) there is colour difference. I usually dig the corner of my trowel in the center of them after I trowel over them too just to be sure.
It might sound like too much hassle to some but it works for me and just thought I'd share.
I came up with a simple solution though, I just scrim over them. 2 lengths of scrim is enough to cover the hole. Make sure they're about 60cm long. If they're too short the weight of the plaster can make them fall off (I found out the hard way).
Only takes a couple of minutes and once that's done it's like skimming a ceiling with no holes in . Just cut them out with a stanley (best to use a new blade) towards the end of the hit. You won't lose where they are as they bulge down a few mm due to gravity early on and when they've nearly gone off (they're flat by then) there is colour difference. I usually dig the corner of my trowel in the center of them after I trowel over them too just to be sure.
It might sound like too much hassle to some but it works for me and just thought I'd share.