How Do Solar Roof Vents Work

Heat builds inside an improperly vented attic the sun beats down on a homes roof and heats up the enclosed attic.

How do solar roof vents work. The area inside the roof with roof ventilation or not achieves extremely high temperatures in summer and freezing temperatures in winter. It s important that you have plenty of ventilation in your attic to remove hot air in the summer and prevent condensation and moisture problems in the winter. To allow for adequate air flow about half of the vents should be placed high on the rooftop at the topmost peaks and half should be placed in the lower portion of the roof. Turbine vents use a combination of wind and convection to extract stale hot air from inside your home and replace it with the cool clean air from the outside.

For the attic fans to work at peak efficiency they need to be on a south facing roof slope if you live in the northern hemisphere. If a cloud blocks the sunlight the fans slow or stop. Air circulation moves hot air out of attic space. But they re much easier to install since no wiring is needed.

Solar powered attic vent fans usually don t move as many cubic feet of air per minute cfm as hardwired fans. Because warm air rises up the wind powered vents with their spinning action tend to suck the air outside. Solar attic fan provides air circulation the photovoltaic panel of the solar attic fan collects sunlight that powers. How do turbine roof vents work.

Solar electric roof ventilation can move more air but it has problems depending on the seasons and reducing gaps in insulation is still way more efficient.