Take the 2-minute tour ×  There is a crack in a wall that I
would like to fill with some removable insulation.  It must be
removable, as such it should just be a temporary solution.  I
know of rockwool and glasswool, but don't know which is best, or
if there exist other types.  Which should I get and stump the
crack with?  share|improve this question What sort of wall
(material, interior/exterior)? Why are you trying to stuff it
with insulation instead of repairing the crack? How big is the
crack? Are you trying to insulate for heat, sound or visual? A
picture of the crack may help –  gregmac Oct 22 '11 at 19:07
Additionally, what caused the crack? How long is "temporary"? – 
Hemm Oct 24 '11 at 0:01 there really isn't a best insulation for
crack repair. –  DA01 Oct 24 '11 at 1:25 Blown-in insulation is
technically removable if you have a shopvac! :) –  Doresoom Nov
2 '11 at 19:44 add comment  1 Answer  up vote 3 down vote
accepted  You can use Backer Rod to fill in the crack if it is
not too wide. Backer rod