To further increase thermal resistance, we decided to replace the roof and upgrade our attic insulation. In March, we removed the 4-kW solar array as well as the existing, substandard roof tiles.

Roof ventilation is a system designed ... flow of air from bottom to top, then out of the attic. Read the original article on House Digest.

‘Many single-family houses in the US have a ventilated attic immediately below the roof,’ explains Alessandro Ronfini.