How To Ventilate RV Cabinet Doors

You may want to add ventilation to your exterior RV cabinet doors for a number of reasons. I decided to add a louvered vent in the door to the compartment where we relocated our batteries during our RV solar power system installation.

Deep Cycle Trojan RV Solar Batteries

Your RV battery compartment should be vented to provide circulation of air, keeping the batteries cool, and preventing build-up of gasses. Since the four new 6v Trojans wouldn’t fit in our existing battery bank location, we relocated them to another compartment that did not have a ventilated door.

5 Easy Steps for Adding Vents to RV Cabinet Doors

Whether you need to ventilate a battery compartment, or just want to add ventilation to improve airflow and prevent mildew, you can follow these simple steps to add a louvered vent to any RV cabinet door. If you have the correct parts, and right tools for the job.

rv cabinet ventsYou Will Need:

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1. Remove RV Cabinet Door

Depending on how your RV cabinets are constructed, removing the door may be the most difficult part of this job. Carefully remove the rivet holding the retainer plug in place inside the hinge profile.

RV Solar Battery Cabinet Vent DIY Project

Use side cutters or pliers to remove the rivet, then slide the door out of the hinge. This may take some gentle persuasion to dislodge the plug holding the door in place. If you cannot slide the door free, use a mallet to tap it loose. Place a block on the edge of the door to prevent any damage.

RV Solar Battery Cabinet Vent DIY Project

2. Mark Location of Louvered Vent

Lay the door on a flat surface. Center your exterior RV replacement vent in the desired location on top of the door and trace the part that will insert into the cabinet.

RV Solar Battery Cabinet Vent DIY Project

3. Cut Hole in Door

Most RV cabinet doors are constructed of high density foam sandwiched between rigid vinyl or aluminum.

If using a jig saw, drill pilot holes in each of the four corners and cut straight lines through the full door.

RV Solar Battery Cabinet Vent DIY Project

I used the cut-off wheel attachment on our Dremel to cut through one side first. This groove served as a straight guide for using the multipurpose cutting bit to cut all the way through.

RV Solar Battery Cabinet Vent DIY Project

4. Insert & Secure Vent

Place your louvered vent in hole you’ve cut and ensure it fits snugly with its flange resting flush with the door surface. Mark spots on door at center of all holes in vent. Remove vent and drill small pilot holes for screws you will use to secure the vent in place.

RV Solar Battery Cabinet Vent DIY Project

Add a thin bead of Dicor sealant under vent flange, and a small drop in each hole you drilled. Insert the vent back in the hole and secure it to the door with the screws. Do not over-tighten. Optional: Add small washers to prevent the screws from cracking the plastic vent, and paint them white with exterior enamel if desired.

RV Solar Battery Cabinet Vent DIY Project

Add more Dicor or caulk around the crack on the inside to seal the vent.

[box type=”note” style=”rounded” border=”full”]NOTE: Make sure the louvers of the vent are pointing down before sealing it in place![/box]

5. Re-attach Cabinet Door

Slide the door back into the hinge profile, and secure it in place by inserting a small screw into the hole where you removed the rivet.

RV Solar Battery Cabinet Vent DIY Project

Your RV cabinet is now ventilated!

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