Roof Vent Adaptor for Ford E-Series 1992-present

Create a flat, secure mounting surface for RV roof vents and fans on contoured OEM van roofs. This patent-pending roof vent adapter is CNC-machined from UV-resistant and fire-resistant expanded PVC, providing a durable foundation that helps prevent roof panel distortion and improper vent installation. Designed to match the contour of the factory roof, the adapter allows standard 14" x 14" RV vent fans to be mounted correctly while maintaining a professional, watertight installation. Features: Patent-pending design contours to OEM van roofs Creates a flat mounting surface for standard RV roof vents and fans Helps prevent roof sheet metal and vent flange distortion CNC-machined from UV-resistant and fire-resistant expanded PVC Compatible with 14" x 14" roof vent openings Works with many popular roof fan brands and models Can be used as a positioning guide when marking vent cutouts Durable construction designed for long-term outdoor exposure Compatible with: Airplus Vent Fans Maxxair Deluxe Series Vent Fans Fan-Tastic Vent Fans Note: Some Maxxair models use a wider mounting flange and may require a larger adapter. Specifications Vent Opening Size: 14" x 14" Adapter Outside Dimensions: 16.75" x 16.75" Material: Expanded PVC UV Resistant: Yes Fire Resistant: Yes Optional Interior Framing Strips Available framing strips provide additional structural support between factory roof beams. These expanded PVC supports: Help reduce vent movement and vibration Provide backing for interior trim screws Offer greater flexibility and moisture resistance than wood Are recommended when roof beam spacing exceeds 18" Installation Overview Cut a 14" x 14" roof opening, avoiding factory roof supports. Bond the adapter to the roof using a high-quality adhesive such as Sikaflex® 221. Install optional interior framing strips if additional support is required. Mount the vent fan using butyl tape and appropriate fasteners. Finish with a compatible self-leveling roof sealant for a weatherproof installation. Note: Longer mounting screws may be required depending on the vent model being installed. What's Included Roof Vent Adapter Optional framing strips and butyl tape (when selected) Important Notice Installation should be performed using proper sealing and mounting practices. Periodically inspect roof sealants and reapply as needed to maintain a weather-tight installation.