Interior WINDOW INsulatION Panels
Stopping drafts and separating heat from cold, in summer as well as winter is the key to energy-efficiency. These two goals can be accomplished by low-cost panels that create two insulating cavities, similar to high-end triple-glazed windows, but at a fraction of the cost. Homeowners, tenants and students sitting next to a formerly drafty window are more comfortable with less need to crank up the thermostat in winter or the air conditioner in summer.
The panels are appropriate for large-scale industrial buildings, schools and residences. Return on investment of the panels can be one year with low cost pine frames and double polyolefin sheets. More expensive maple frames with lexan or plexiglass will increase the duration of return on investment but may be a preferred choice.