Understanding the basics of roof ventilation can prevent expensive repairs later. Learn about how to achieve optimal airflow ...

“It directs water away from the roof and foundation ... unnecessary strains on the heating and, in summer, the cooling systems. “Homeowners should inspect their attic at least twice a year ...

Scientists in the Netherlands have assessed how the so-called blue-green roofs can help reduce the operating temperature of rooftop PV panels and have found they provide a significant cooling effect.

The study found that, on average, installing an evaporative cooling system for a 50,000-square-foot building costs about $113,000, while a comparable air conditioning system costs about $219,000.