This photo shows our progress as we begin insulating stick framed walls in the new add-on. We use a formaldehyde free fiberglass insulation, or use an eco-green insulation when it is available. As mentioned in prior images in this gallery, we will also include a two inch rigid foam insulation which will be placed on the exterior walls. The blue rigid foam will not only add insulation value, but also provide a stop gap for any air which might move between the wooden members and the interior walls. Due next is the sheetrock upon the walls.