Sunday, August 26, 2007
One of the benefits of a new house is the high-tech materials that can make a house really energy efficient and comfortable. The guys have finished with the first layer of insulation in the exterior walls. They've used a product called TUFF-R, which is a polyisocyanurate insulation. (I can spell it, but don't ask me to pronounce it.) This may not be the sexy or exciting side of building, but I'm really looking forward to warm rooms on cold winter nights. I can already feel the difference the insulation makes. Saturday was probably the hottest day so far this summer, and the house was noticeably cooler. TUFF-R's foam core is sheathed with aluminum foil, which acts as a radiant barrier. As I understand it, insulation can only absorb so much heat before it starts working against you by literally holding the heat and radiating it inside the house when you'd rather it cool down. Simply put, the foil prevents this from happening.
All of the seams have been filled with an expandable foam making this layer an excellent barrier against "wind infiltration." Now, the walls are ready for electrical wiring and plumbing to be installed, followed by a layer of insulation batting over it all.