KUME insulating Curtains project
Kume insulating Curtains it is a rool up curtain that is composed of four distinct layers: a front panel, a moisture barrier, wooden battens and a back panel. Kume curtains lower heat losses through windows by 50 to 70%, and improve comfort by eliminating cold spots and drafts in rooms. In the first home that was fitted with Kume curtains, heating fuel consumption dropped by 25% with respect to previous years.They are inexpensive. The cost of the materials that are needed to make a Kume curtain typically ranges from US$ 10 to 15 per square meter. They are easy to make. Putting together a Kume curtain does not require great manual skills or much time. For example, assembling a 100 by 50 cm curtain takes only one to two hours.
For further info: http://www.kumeproject.com/home-page.html