How To Wire A Roof Fan

To save time use an existing roof or gable vent to install your new attic fan.

How to wire a roof fan.

Simply cut an opening in the roof typically near the peak and install the fan over the opening. Connect the black thermostat wire to the black cable wire the white thermostat wire to the white cable wire and the ground wire to the green ground screw in the box. A how to demonstration of wiring your xxfirestat or power attic vent thermostat. Roof fans are mounted on plastic or sheetmetal bases that serve as flashing.

You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications. This way you don t have to cut a brand new hole but simply make the hole for the vent larger so it can accommodate the fan. Whole house fans tend to have higher overall costs than attic ventilation fans. To install an attic fan over a gable vent in your attic trace the body of the fan onto a piece of plywood that s wide enough to mount on the studs on each side of the vent.

Step 8 install the thermostat box cover and use the screwdriver to set the thermostat so that the fan will kick on when the attic reaches 105 degrees. Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill. Use wire nuts to connect the black wire from the 12 2 wire to the black or red wire in the attic fan the white wire to the white wire in the attic fan and the two ground wires. Pricing for attic fan installation varies depending on fan type and its location.

Even if your roof already has ridge vents and plenty of ventilation built in it s a good idea to install gable fans or roof fans to help blow hot humid air out of the attic. Whether you are looking to wire a ceiling fan with lights to one power switch or add a fan in a room without a switch source this guide will teach you how to wire a ceiling fan using four common scenarios and the best wiring methods. On average labor costs run between 100 300 and the fan itself may range from as little as 50 to more than 500. Wiring ceiling fans can seem complicated but the task really just depends on the type of fan you are installing and how you want it to operate.