Adding insulation is the most cost effective method to reduce HVAC energy costs
Yes add insulation - you will notice the difference and your cooling/heating bill will reduce.
Typically, the garage attic is not insulated. We have a 2000 sq ft east facing designer home. I've added insulation throughout the house, lani, and garage. The depth of insulation is 2 feet - it was blown in. I also insulated the garage doors with styrofoam panels obtained at Lowes (there is a specific kit for this). Previously, the garage and lani were not insulated.
The difference is noticeable and I believe well worth the $$. Don't do a "refresh", but obtain a couple of quotes. Have the quoting company either survey your existing insulation or require 2 feet of depth throughout - don't just fall for a R38 depth unless they define how deep the insulation will be. That way you can measure and verify.
|