Embodied energy is the amount of energy that goes into the manufacture and shipping of various building materials. Cellulose insulation is amazing in that it has the lowest embodied energy of all other major insulation and building materials. Cellulose has only 3002 BTU’s / cubic foot, whereas fiberglass consumes 9 times the energy to make (26996 BTU’s/cubic foot).
Synthetic carpeting….holy cow! It takes 2.3 million BTU’s/cubic foot. Aluminum is 13 million BTU’s /cubic foot. It is no wonder why aluminum smelters are located where electrical energy is cheaper, like Columbia River or Iceland.
Reading about embodied energy in cellulose makes me pleased that this is what we have been recommending to most of our clients. Not only is cellulose great for sealing air leaks, its healthier than other insulation and the lower energy required to make it lowers our carbon footprint.