If you are one of many home owners that have your ducting in your attic, then heat and humidity are a big concern. Radiant barriers are ideal during summer time for reducing attic temperatures. Less heat in the attic means the air running through your ducting stays colder, in turn cooling your home faster and reducing your monthly bill. Another condition that home owners with attic ducting should be concerned with is high humidity. High humidity can lead to mold growth on your roof structure, and even more importantly in your ducting. A high efficient programmable dehumidifier placed in your attic will reduce the humidity, and starve mold spores of moisture. Healthy Homes Remediation suggests both of these tools if you having ducting in your attic.