“Cool” Energy-Efficient Roofs

Cool roofs, also known as reflective roofs, are roof surfaces designed to reflect radiation from the sun, reducing heat transfer into the building. How do they differ from conventional roofing products? Unlike most North American asphalt…

Biological Pollutants in the Home

Outdoor air pollution in cities is a major health problem. Much effort and money continue to be spent cleaning up pollution in the outdoor air. But air pollution can be a problem where you least expect it, in the place you may have thought was…

Adobe Inspection

Adobe is a natural building material made from clay and sand mixed with water and an organic binder, such as sticks, straw or dung. Adobe structures are more common in inhospitable climates and where lumber is scarce. They're commonly built…