The installation procedure is similar to any type of roof or soffit vent: Cut a hole, nail the fan in place so it covers the ...

For an alternative, install a solar attic fan that's a little less powerful and creates fewer moisture issues. Box vents shouldn't be combined with other vent types either, especially ridge vents.

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. The following month, we brought the ...