I've just screwed a lot of plasterboard to the kitchen ceiling and want to fill in the little gaps to stop draughts so the heat doesnt escape through the floorboards above.
But some time in the future I want to take some of them down to rewire it, and I'd like to reuse the boards as I've cut them to fit.
If I use plaster cement for the gaps it'd set very hard and crumblify the boards when i take them down.
Is there a very soft caulk that I can reversibly fill the gaps with?
[g]