Patent Pending adapter matches the contour of the OEM roof so a standard RV style vent mounts to a flat surface. Prevents distorting the roof sheet metal or vent flange and can be used as an aid for locating the fan. They are CNC machined out of UV and fire resistant expanded PVC. The fan mounts to the outside adapter. Fan adapters work with the Maxxfan Deluxe series and the Fan-tastic Vent fans. The outside adapter will fit anywhere along the center of the cargo area. Longer screws than came with the vent fan may be needed.
We have a very nice magnetic insulated roof vent cover for the inside of your van. Item # 132946231471. The framing strips are expanded PVC and bonded to the roof with a thick bead of Windoweld. They are more flexible than wood and plenty strong to support the vent and keep it from jiggling. We double them up when installing roof top air conditioners. They are essential if the span between the OEM roof beams is more than 18\". They also provide a backing for the screws that hold up the vent interior bezel. They should be placed 1/4\" away from the edge of the hole so the screws for the vent go into the strips. They are a generic size and will need to be cut to length. These strips are not contoured to the van corrugations.
****The vent adapter outside dimension is 16 3/4 X 16 3/4. If you are using a Maxxfan vent our adapter fits the deluxe series, other Maxxfan vents have a wider flange. You will need a wider adapter. Please call.
Click the link bellow to download our install guide
Van Roof Vent Adapter Install Tips
If you have questions about this product you can call Hein at 541-49O-5O98Check out our other items!