I live in a 20 year old home that has the master bedroom above the garage. The garage ceiling is finished with drywall and is insulated with typical batt insulation, and yet the master bedroom is always cold in the winter. Three years ago we had extra insulation (blown in) added to the attic of our house, but our master bedroom has a cathedral ceiling, so little could be done to add insulation in the ceiling. The installer suggested we add blown in insulation in the ceiling of the garage to help fill the voids above the batt insulation that's already there - but the price tag of $500 + seemed too high at the time.
Lowe's now rents the machine, and sells the blown in insulation, so I'm thinking about tackling this project myself now. I'm a pretty handy guy, and feel up to this job, but would like to have a few questions answered:
1. Would adding blown in insulation above the garage ceiling make that much of a difference?
2. I know I'll need to cut holes in the ceiling at 2 points in each joist cavity, but how do I get above the current batt insulation to add the extra insulation?
3. Has anyone on this forum done this - and do you have any other tips/ideas?
Thanks in advance for any help!