I'm wondering if its possible to add insulation to a finished wall that already has R-11 in those walls?
We live in GA and the home was built in 1990 and has R-11 in the existing walls and we'd like to add more insulation if possible without having to rip out the current wall.
Now with the walls already being finished with insulation I would figure trying to use blow-in from the inside walls would almost be impossible as I believe it would get caught up and clogged with the current insulation causing a mess and not working. However I was thinking if I did it from the outside wall the paper would allow the new insulation to more easily slide down and fill the wall??
Am I on the right track here or am I just stuck with the R-11 until I do a complete remodel and rip out the current wall(s)? Or is there a better way do do this that I'm just not thinking of?
Thanks in advance,