PhoneEnergy_page_27

PhoneEnergy | page 27 | https://thedailydialectics.com/pdfs/tesla/PhoneEnergy/PhoneEnergy.pdf

make it competitively priced with some batt types. Spray insulation is commonly used for retrofitting. * Rigid insulation can be large, formed sheets of fiberglass, polystyrene or polyurethane. It’s often used in basements, crawl spaces and exterior walls. Some problems with insulation Some foamed…