This patent-pending, solar-powered roof fan retrofits into an 8" metal NorWesCo RVO38 roof vent. The fan snaps inside the vent and the solar panel is attached to the top of the vent hood. An ideal ventilation choice for any home that does not currently have any powered roof vents and your home already has the NorWesCo vents installed on their roofs.
Solar roof vents are becoming a standard on new roof installs. Venting one's attic is crucial and all shingle manufacturer's stress the importance of ventilation.
HOW MANY FANS SHOULD I ORDER FOR MY ROOF?
We recommend one for every 600 sf of roof area. A typical home (1200sf) would take 3-5 vents. It is crucial that a home's attic is ventilated uniformly across the entire attic space. That is why most homes have numerous passive vents or ridge venting installed. The idea is that cool air will come in from the eave's soffit vents and run along the entire roof deck to escape at the top through the passive vents. This uniform air movement helps keep your roof's deck (the plywood, the trusses, and the rafters) dry and moisture free. It also helps keep your insulation's r-value from decreasing due to condensation dripping down from the roof deck.
DOES THIS FAN INCLUDE A THERMOSTAT OR ON/OFF SWITCH?
No, not needed. Ideally, the fan should run in summer, to remove excessive heat, and winter, to remove moisture due to condensation. Trapped heat/moisture in one's attic, not only diminishes the comfort of one's home environment, but they also reduce the life expectancy of your roof and insulation.
CONTENTS OF THE KIT:
The Solar RVOblasterTM Kit comes with a 3W solar panel attached to a two ball bearing, 2700rpm, 39cfm fan that is rated for 50,000 hours. The fan is attached to our patent-pending Solar Blaster bracket which snaps into an 8" metal vent (vent is NOT included). Included are four stainless steel clips to secure the solar panel to the vent hood. Installation is easy and only requires a screwdriver and gloves.