With volatile energy costs, a good return on investment may be obtained by adding insulation to homes, offices, farm shops and other heated buildings such as greenhouse headhouses or boiler rooms. Insulation can provide benefits in winter by keeping expensive heat in and in summer by keeping unwanted heat out.
Although all building materials have some insulation value, the term “insulation” usually refers to materials with a relatively high resistance to heat flow that are designed specifically for that purpose. …