Camco RV Roof Vent Covers: Standard vs Aero-Flo

Roof-vent covers protect the opening while allowing ventilation when the RV roof vent is raised. Camco makes a standard one-sided louver design and an Aero-Flo version with multiple ventilation sides and a swing-open top. Both are intended for nominal 14-by-14-inch roof vents, but their outside shapes and access methods differ.

Aero-Flo or standard exterior cover?

Aero-Flo roof-vent cover

Camco 40421 is white and 40711 is black. The design has ventilation openings on multiple sides and a top that swings open for access during cleaning. Camco lists the installed size of 40421 as 22½ by 20 by 9 inches.

Standard vent cover

Camco 40431 is white, 40443 is black. These use a single louvered ventilation side with removable louvers for cleaning. The covers mount over existing nominal 14-by-14-inch roof vents.

Camco 14-inch roof-vent cover reference

Camco MPN Family Finish Venting Cleaning access
40421 Aero-Flo White Multi-sided vent openings Swing-open top
40711 Aero-Flo Black Multi-sided vent openings Swing-open top
40431 Standard White One louvered side Removable louvers
40443 Standard Black One louvered side Removable louvers
All covers in this comparison mount over an existing roof vent. Fit must also account for the vent lid, fan clearance and surrounding rooftop equipment.

Before mounting an exterior cover

  1. Measure the existing vent opening and identify the underlying vent or fan model. A nominal 14-inch opening does not establish compatibility with every powered fan.
  2. Check the vent lid's available opening height beneath the cover and surrounding clearance from air-conditioning units, solar equipment and roof obstructions.
  3. Identify the cover's mounting bracket and fastener locations. Follow the exact Camco installation instructions and roof-sealing requirements.
  4. Choose the cleaning-access design that suits the vent, then verify the color and exact Camco number.
  5. These domes install over the roof vent; they are not replacements for the vent's hinged lid, crank, screen or fan motor.

Shop Camco exterior vent covers by MPN

Open the exact manufacturer part number for its product photos, specifications and current availability.

For reducing heat transfer through an existing ceiling opening, see our Camco interior vent insulator and skylight insert guide. These interior accessories do not replace exterior covers.

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