Air-Tight Electrical Boxes
Energy Efficient and Green construction for new homes and remodeling recommends that all electrical boxes and openings that penetrate the thermal envelope be sealed airtight. Also, the EPA and Energy Star programs recommend building an air-tight envelope in the latest Green Building promotions.
There are several ways to attempt air-tight electrical boxes. But the fastest, easiest and most effective way is to use the LESSCO Air-Vapor Barrier Box.