Guardian Insulation specializes in Home Performance which takes into account necessary home upgrades to ensure proper air quality, comfort, health, safety & energy efficiency.nnWeatherizing your attic through insulation & air sealing is one of the easiest, most cost effective ways you can immediately reduce your heating and cooling bills, make your home dramatically more comfortable & help preserve the environment.nnFew homeowners have heard of air sealing. There is a guide written by the Dept of Energy available for download on our website. But the DOE and the CA Energy Commission recommend removing existing insulation & sealing the attic plane before adding additional insulation. The alternative is to simply add insulation over existing insulation. While not the solution that will offer the best ROI, is the least expensive way to improve your attic and is an option for homeowners on a very limited budget.nnThe attic is often the most poorly insulated and ventilated area of your home’s envelope. Insufficient insulation levels in your attic can result in major heat loss and thus, higher energy bills. Furthermore, poor ventilation and air leakage are major contributing factor for mold growth. The walls of many homes are also poorly insulated and lead to heat loss, as well. At Guardian insulation, we are committed to working with homeowners to improve the efficiency and comfort to your home. We have the solutions you are seeking to your energy problems.