For that you need to upgrade to an electric rv power vent with a built in fan.
Installing new rv roof vent.
Place the rv roof vent on the 14 inch opening and press down to seat the vent on the silicone caulking.
Bob livingston and bill gehr replace a weathered rv roof vent cover.
Rather than being installed on the roof gable vents are installed on the exterior side wall of the home near the roof ridge.
In this rv diy video mark polk with rv education 101 demonstrates how to replace and seal an rv roof vent.
Remove old garnish or cut new opening.
If you are replacing an existing vent remove the old trim ring garnish.
Place the screws provided with the vent into the holes pre drilled into the vent flashing.
Installation first requires a wood frame made of 2x4s installed from the attic between two studs.
This isn t normally the kind of video i put out but i got bored changing the vents in my camper so i filmed the last one and made a how to video.
Insert and seal.
But what most vent fan manufacturers don t tell you is that a proper installation will require the removal of any existing roof sealant or seam tape around your old vent fan just to get it out of the way so you can install a new one.
Apply a strip of silicone approximately 1 4 inch wide along the edges of the 14 inch square opening.
Most rv vent fans have some sort of roof sealant or seam tape around their edges to prevent water from leaking inside your rv or into the roofing and causing dry rot.
Installing the rv roof vent step 1.
Our vent fans are equipped with rain sensors but there are times that we want the fan open running even if it s raining out.
If you are installing a vent in a new location skip this step and move on to.