It's that time of year and we all need to check our roof to make sure everything is sealed and ready for the Spring rainfall. Let's talk about installing an RV Roof Vent.
Typically your roof vents are a 14x14 size. There are all different types of roof vents.
Let me list a few for you:
As you see we vary in types, one is a reversible fan, one is a standard manual, and the last is the one with the works! If you are away and it rains, the sensor will close it for you!
So let's begin the install:
Here’s your general roof vent installation:
Use denatured alcohol and a rag to clean the area around the roof opening where the old butyl tape was removed.
Install new butyl tape on the underside of the new roof vent (all four sides).
Keep wiring out of the way and set the new vent into the roof opening.
Make sure the hinge side of the vent faces towards the front of your RV.
Place fresh butyl tape around the edge of the opening prior to securing your vent down with screws. This helps ensure another barrier of sealant to
Secure the vent using screws.
Tighten until you see a small amount of butyl tape squeezing out around the edges, but do not overtighten.
Use a squeegee or putty knife to remove excess butyl tape around vent edges.
Now that your RV roof vent is screwed into place, it’s time to seal it in place so that water doesn’t leak in during the next storm. With a compatible roof sealant in hand, here’s your process:
Clean the flange and screw heads with denatured alcohol before applying sealant
Cover each screw head with a nickel-to-quarter-sized dollop of self-leveling lap sealant.
Do NOT use silicone or latex caulk. It is not meant for roofing.
Run a bead of sealant around the edges of the vent.
The bead should be about two inches wide and ¼-½” thick.
There’s one more critical component to your roof vent installation: connecting it to your RV’s 12-volt power source. You can safely climb down from your RV roof and head back inside to wire your vent up.
To supply power to your vent fan, follow these steps:
Double-check that your battery disconnect switch is engaged or the cable is removed from the negative battery terminal to remove the flow of power from your battery to the old vent fan wiring.
Follow your fan’s manual for instructions on making safe electrical connections.
Once you’ve followed all instructions, disengage your disconnect switch or reconnect the battery and test the fan for proper operation.
Once the fan is in operation, replace the vents' interior trim ring and your installation is complete.
Congratulations! You have completed the installation of your RV Roof Vent.
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