Roof Vent Adapters

This adapter fits a 14" x 14" opening. Please check your fan requirements. If it is 400mm x 400mm you need to purchase an adapter from our Euro Adapter listing.

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.

 It is important to use our Interior Support Framing system.

Please note that not all of the Transit vans are the same in the Most Forward area and may require more adhesive if there is a gap or some sanding on the adapter.

The outside adapter will fit anywhere along the cargo part of the roof. Longer screws than came with the vent fan may be needed.

The vent adapter outside dimension is 16 3/4 X 16 3/4.   If you are using a Maxxair vent our adapter fits the  Maxxfan Deluxe series, other Maxxair vents have a wider flange. You will need a wider adapter.  Please text Kim at 541-490-4292 for help.

The option with butyl tape includes 64" of tape. If the butyl tape is stuck to the plastic, put it in the freezer for 30 minutes. It will release,  then let the butyl tape return to room temperature.

We make adapters to fit air conditioners and adapters for offset locations. Please contact us so we can verify size and location.

Roof Vent Adapter Install procedure: We recommend 3M Window-weld or Sikaflex 221 adhesive for adhering the adapter to the roof. Locate and cut the 14 x 14 hole. You can use the adapter as a guide to mark the hole. Stay clear of roof supports, obviously. Make a tape line 1/4" beyond the adapter perimeter. De-gloss the area with a Scotch- brite pad. No need to scuff. Just dull the paint. Clean with isopropyl alcohol and let dry thoroughly. Blow dryer if it's wet and/or cold out. Apply three 1/8" beads of the Window-weld on the face of the adapter. Then press the adapter down onto the roof until the adhesive oozes out the sides. It's not necessary to clamp. If you do, use a lot of lightly set clamps and spread out the clamp force over the whole surface area. Using the adhesive that oozes out, make a fillet around the adapter with a double gloved finger. Pull the tape within 15 minutes. Cure is fast on outside. Let cure overnight and then proceed with the fan install. We recommend using butyl tape for the fan install. Cover the fan flange with 1 1/8" wide tape. Place onto of adapter and press down. Then drill pilot holes through the adapter and into the van roof. If the screws are going to go into a roof support beam then drill a clearance hole in the beam. You only want the screw to engage the adapter and outer skin. Use a step drill to keep from plunging through the skin. You may need longer screws. Tighten them very lightly against the fan flange. Some butyl will ooze out which you can trim off. Coat the fan flange adapter and onto the roof about 1/2" with brush on bed-liner or Flexseal from the TV guy works well. Some sealants will melt the fan plastic so you might try it on a portion of the interior bezel first. You'll cut a lot of that piece off. Good idea to check the integrity and reapply the sealant every so often. Dicor self leveling sealant also works but looks a little messy.

Disclaimer:   Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold “as is” and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.

The framing strips are expanded PVC and bonded to the roof with a thick bead of Sikaflex 221.  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.

We can make adapters for offset locations. Please contact us so we can verify size and location.

Roof Vent Adapter Install procedure:
We recommend 3m Window-weld or Sikaflex 221 adhesive. Locate and cut the 14 x 14 hole. You can use the adapter as a guide to mark the hole. Stay clear of roof supports, obviously. Make a tape line 1/4" beyond the adapter perimeter. De-gloss the area with a Scotch- brite pad. No need to scuff. Just dull the paint. Clean with isopropyl alcohol and let dry thoroughly. Blow dryer if it's wet and/or cold out. Apply three 1/8" beads of the Window-weld on the face of the adapter. Then press the adapter down onto the roof until the adhesive oozes out the sides. It's not necessary to clamp. If you do, use a lot of lightly set clamps and spread out the clamp force over the whole surface area. Using the adhesive that oozes out, make a fillet around the adapter with a double gloved finger. Pull the tape within 15 minutes. Cure is fast on outside. Let cure overnight and then proceed with the fan install. We recommend using butyl tape for the fan install. Cover the fan flange with 1 1/8" wide tape. Place onto of adapter and press down. Then drill pilot holes through the adapter and into the van roof. If the screws are going to go into a roof support beam then drill a clearance hole in the beam. You only want the screw to engage the adapter and outer skin. Use a step drill to keep from plunging through the skin. You may need longer screws. Tighten them very lightly against the fan flange. Some butyl will ooze out which you can trim off. Coat the fan flange adapter and onto the roof about 1/2" with brush on bed-liner or Flexseal from the TV guy works well. Some sealants will melt the fan plastic so you might try it on a portion of the interior bezel first. You'll cut a lot of that piece off. Good idea to check the integrity and reapply the sealant every so often. Dicor self leveling sealant also works but looks a little messy.

DISCLAIMER

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold "as is" and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.  

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold ?as is? and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.  

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold “as is” and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.  

Patent pending adapter matches the contour of the OEM roof so an Artic Tern Skylight mounts to a flat surface. Perimeter of adapter matches vent cover for best performance and appearance. Prevents distorting the roof sheet metal or vent flange. Can be used as an aid for locating the fan. Adapters are CNC machined out of  UV and fire resistant expanded PVC. The vent mounts to the outside adapter. The outside adapter will fit anywhere along the center cargo area of the roof. We recommend 3M Window-weld or Sikaflex 221 adhesive for adhering the adapter to the roof. Additionally, we recommend that you seal the adapter and roof light after it is installed with a membrane sealant such as Dicor.

If you are ordering this for a Sprinter we can produce them for the NCV3 or VS30, 2007 to present.

The order will include an interior support frame.

Outside dimensions are 23 1/2" x 33"

Inside opening dimensions are 19.75" x 27.6"

Artic Tern Skylight is not included.  

Photo shown is on a Promaster.

When purchasing an adapter for a van please include a note indicating where you want to place the vent so we can produce the appropriate geometry to match the roof in that location.  You are also welcome to send a photo to 541 49O 5O98. Please include your name if sending photo.

If ordering for a Sprinter we commonly ask for this measurement and information about the van:

1) Please take a measurement from the center of the large plug on the rear of the van to the back edge of the hole you will cut. Photo of the plug is below.

2) Please let us know which Wheel Base you have, 144 WB, 170 Regular or 170 Extended. The RTX opening is 15 1/2" long x 14 1/8" wide.

DISCLAIMER: Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold “as is” and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.  

Aluminum plate for covering OEM AC hole and ports and installing RV vent in center. For Sprinter 2007 to 2018 with factory installed roof AC. Plates are .090 thick unfinished aluminum with VHB tape pre-applied for bonding to roof. Also includes 3 smaller plates for covering 3 ports. Prep surface of roof by cleaning and de glossing with isopropyl alcohol and scotch-brite pad. Apply VHB in warm conditions and use heat and pressure to set after installation. Seal perimeter edge of plates with 3M 4412N extreme sealant tape or Dicor self leveling sealant. If using tape work from rear edge forward so front pieces overlap rear pieces. Remove release film from top of tape so it can be laid around corners and next layer will stick. Recommend that plate and sealant can be painted to match vehicle. RV vent is mounted with butyl tape provided. 14x14" opening. OEM AC hole will need to be enlarged to 14 by trimming approximately 1/4" along front edge. This can be done after plate is installed.

The outside dimension of the plate is 15.25" x 32.5"

This Plate will NOT work on the VS30, please see this link. https://diyvan.com/collections/ac-adapters/products/sprinter-delete-plate

We also offer the AC Replacement Plate with no hole.

Please call Hein for technical support. 541 49O 5O98

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold “as is” and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.  

Insulate RV vent cover attached with magnets. Ripstop nylon facing with insulated core.  Sewn in magnets keep cover firmly attached to interior bezel of the vent. Magnets and superglue included. 

This fits the 14 x 14" Maxxair Fans.

MAGNET WARNING

Neodymium magnets are strong and can pinch skin. They may interfere with medical devices.

DO NOT LET CHILDREN PLAY WITH MAGNETS.

The magnets are brittle and can break or chip easily. Sliding magnets off the stack works best.

Broken magnets can still be used but we also include 2 extra magnets.

Keep magnets away from ferrous metals or they will jump to it.

Installation instructions:

1. Remove vent bezel by removing 4 screws holding it to ceiling.

2. Place vent cover on flat work surface making sure side labeled UP is visible and sewn on tab will be facing forward when back in vehicle.

   This is very Important due to magnet polarity.

3. Place and align vent bezel on top of cover.

4. Distribute 12 magnets on back of bezel flange. The 4 round magnets are placed in the middle 2 spots on each side. They will snap to the locations of the magnets in the cover. See listing photo for location of magnets.

5. Make sure the cover stays aligned with the bezel.

6. Pick up each magnet and place a drop of glue on the bezel.

   Then let magnet find it's place again. Do this for each of the 12 magnets.

7. Let glue set completely. Takes a few minutes.

8. Re-attach bezel to ceiling with screws removed in step 1.

9. Cover will now snap onto it and be held by magnets.

10. Front panel with tab can be folded over to allow partial 1/3 opening.

Please call Hein for assistance. 541-49O-5O98

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold ?as is? and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.  

Pair with our Insulated Vent Fan Cover and Maxxfan Deluxe 7500K or 7000K Electric Lid Opening

Click here for our custom adapter inquiry form.

Fits 14" x 14" opening. If you are ordering an Air Conditioner adapter you must call to verify position and model of AC.

T1N All Rib fits where the Rib runs through the center. The One Rib would land on a flat area on one end and a center rib on other end. Sprinter Model from 1994 to 2006

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 adapter fits both high and low roofs.

Longer screws than came with the vent fan may be needed.

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 Maxxair vent our adapter fits the Maxxfan Deluxe series, other Maxxair vents have a wider flange and or opening. You will need a wider adapter. Please call.

*****If you order the framing strips they will come in a separate box.

*****The option with butyl tape includes 64" of butyl tape.  If the butyl tape is stuck to the plastic, put it in the freezer for 30 minutes. It will release,  then let the butyl tape return to room temperature.

Install procedure:
We recommend 3m Window-weld or Sikaflex 221 adhesive. Locate and cut the 14 x 14 hole. You can use the adapter as a guide to mark the hole. Stay clear of roof supports, obviously. Make a tape line 1/4" beyond the adapter perimeter. De-gloss the area with a Scotch- brite pad. No need to scuff. Just dull the paint. Clean with isopropyl alcohol and let dry thoroughly. Blow dryer if it's wet and/or cold out. Apply three 1/8" beads of the Window-weld on the face of the adapter. Then press the adapter down onto the roof until the adhesive oozes out the sides. It's not necessary to clamp. If you do, use a lot of lightly set clamps and spread out the clamp force over the whole surface area. Using the adhesive that oozes out, make a fillet around the adapter with a double gloved finger. Pull the tape within 15 minutes. Cure is fast on outside. Let cure overnight and then proceed with the fan install. We recommend using butyl tape for the fan install. Cover the fan flange with 1 1/8" wide tape. Place onto of adapter and press down. Then drill pilot holes through the adapter and into the van roof. If the screws are going to go into a roof support beam then drill a clearance hole in the beam. You only want the screw to engage the adapter and outer skin. Use a step drill to keep from plunging through the skin. You may need longer screws. Tighten them very lightly against the fan flange. Some butyl will ooze out which you can trim off. Coat the fan flange adapter and onto the roof about 1/2" with brush on bed-liner or Flexseal from the TV guy works well. Some sealants will melt the fan plastic so you might try it on a portion of the interior bezel first. You'll cut a lot of that piece off. Good idea to check the integrity and reapply the sealant every so often. Dicor self leveling sealant also works but looks a little messy.

If you have questions about this product you can call Hein at 541-49O-5O98

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold “as is” and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.

WARNING!! Please verify the opening requirement on your Maxxair Fan. If it is 400mm x 400mm you need to purchase an adapter from our Ford Transit Euro Adapter listing.

Pair with our Insulated Vent Fan Cover and Maxxfan Deluxe 7500K or 7000K Electric Lid Opening

Click here for our custom adapter inquiry form.

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 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.

Fits a 14" x 14" opening. Photo of the adapter is in the offset position.

The vent adapter outside dimension is 16 3/4 X 16 3/4. If you are using a Maxxair vent our adapter fits the Maxxfan Deluxe series, other Maxxair vents have a wider flange. You will need a wider adapter. Please call.

If the butyl tape is stuck to the plastic, put it in the freezer for 30 minutes. It will release, then let the butyl tape return to room temperature.

Longer screws than came with the vent fan may be needed.

Roof Vent Adapter Install procedure:

We recommend 3m Window-weld or Sikaflex 221 adhesive. Locate and cut the 14 x 14 hole. You can use the adapter as a guide to mark the hole. Stay clear of roof supports, obviously. Make a tape line 1/4" beyond the adapter perimeter. De-gloss the area with a Scotch- brite pad. No need to scuff. Just dull the paint. Clean with isopropyl alcohol and let dry thoroughly. Blow dryer if it's wet and/or cold out. Apply three 1/8" beads of the Window-weld on the face of the adapter. Then press the adapter down onto the roof until the adhesive oozes out the sides. It's not necessary to clamp. If you do, use a lot of lightly set clamps and spread out the clamp force over the whole surface area. Using the adhesive that oozes out, make a fillet around the adapter with a double gloved finger. Pull the tape within 15 minutes. Cure is fast on outside. Let cure overnight and then proceed with the fan install. We recommend using butyl tape for the fan install. Cover the fan flange with 1 1/8" wide tape. Place onto of adapter and press down. Then drill pilot holes through the adapter and into the van roof. If the screws are going to go into a roof support beam then drill a clearance hole in the beam. You only want the screw to engage the adapter and outer skin. Use a step drill to keep from plunging through the skin. You may need longer screws. Tighten them very lightly against the fan flange. Some butyl will ooze out which you can trim off. Coat the fan flange adapter and onto the roof about 1/2" with brush on bed-liner or Flexseal from the TV guy works well. Some sealants will melt the fan plastic so you might try it on a portion of the interior bezel first. You'll cut a lot of that piece off. Good idea to check the integrity and reapply the sealant every so often. Dicor self leveling sealant also works but looks a little messy.

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold “as is” and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.  

WARNING!! Please verify the opening requirement on your Maxxair Fan. If it is 400mm x 400mm you need to purchase an adapter from our Ford Transit Euro Adapter listing.

Pair with our Insulated Vent Fan Cover and Maxxfan Deluxe 7500K or 7000K Electric Lid Opening

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.

Please see our Interior support strips: https://diy-van.myshopify.com/admin/products/5783792779421

IMPORTANT

Fan adapters work with the  Maxxfan Deluxe series and the Fan-tastic Vent fans.

The outside adapter will fit anywhere along the cargo part of the roof. Longer screws than came with the vent fan may be needed.

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 text Hein at 541-490-5098 for help.

If you order the framing strips they will come in a separate box.

The option with butyl tape includes 64" of tape.

We make adapters to fit air conditioners and adapters for offset locations. Please contact us so we can verify size and location. 

Click here for our custom adapter inquiry form.

The Low Roof Vent Adapter will also fit on the forward position on the Mid and High Roof Transit.

Roof Vent Adapter Install procedure: We recommend 3M Window-weld or Sikaflex 221 adhesive for adhering the adapter to the roof. Locate and cut the 14 x 14 hole. You can use the adapter as a guide to mark the hole. Stay clear of roof supports, obviously. Make a tape line 1/4" beyond the adapter perimeter. De-gloss the area with a Scotch- brite pad. No need to scuff. Just dull the paint. Clean with isopropyl alcohol and let dry thoroughly. Blow dryer if it's wet and/or cold out. Apply three 1/8" beads of the Window-weld on the face of the adapter. Then press the adapter down onto the roof until the adhesive oozes out the sides. It's not necessary to clamp. If you do, use a lot of lightly set clamps and spread out the clamp force over the whole surface area. Using the adhesive that oozes out, make a fillet around the adapter with a double gloved finger. Pull the tape within 15 minutes. Cure is fast on outside. Let cure overnight and then proceed with the fan install. We recommend using butyl tape for the fan install. Cover the fan flange with 1 1/8" wide tape. Place onto of adapter and press down. Then drill pilot holes through the adapter and into the van roof. If the screws are going to go into a roof support beam then drill a clearance hole in the beam. You only want the screw to engage the adapter and outer skin. Use a step drill to keep from plunging through the skin. You may need longer screws. Tighten them very lightly against the fan flange. Some butyl will ooze out which you can trim off. Coat the fan flange adapter and onto the roof about 1/2" with brush on bed-liner or Flexseal from the TV guy works well. Some sealants will melt the fan plastic so you might try it on a portion of the interior bezel first. You'll cut a lot of that piece off. Good idea to check the integrity and reapply the sealant every so often. Dicor self leveling sealant also works but looks a little messy.

If you have questions about this product you can call Hein at 541-49O-5O98

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold “as is” and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose. 

WARNING!! Please verify the opening requirement on your Maxxair Fan. If it is 400mm x 400mm you need to purchase an adapter from our Ford Transit Euro Adapter listing.

Pair with our Insulated Vent Fan Cover and Maxxfan Deluxe 7500K or 7000K Electric Lid Opening

Click here for our custom adapter inquiry form.

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 and vent flange and can be used as an aid for locating the fan. It is CNC machined out of UV and fire resistant expanded PVC. The fan mounts to the adapter. Fan adapters work with the Maxxfan Deluxe series and the Fan-tastic Vent fans.

Fits a 14" x 14" opening. If you have a Maxxair Plus series fan you will need to reach out to us for a different adapter. 

****The vent adapter outside dimension is 16 3/4 X 16 3/4.   If you are using a Maxxair vent our adapter fits the Maxxfan Deluxe series, other Maxxair vents have a wider flange. You will need a wider adapter. Please call.

Longer screws than came with the vent fan may be needed.

There is an option for the adapter, butyl tape and framing strips. The framing strips help support the roof on the inside.

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.

If the butyl tape is stuck to the plastic, put it in the freezer for 30 minutes. It will release and then let the butyl tape return to room temperature.

Roof Vent Adapter Install procedure:
We recommend 3m Window-weld or Sikaflex 221 adhesive. Locate and cut the 14 x 14 hole. You can use the adapter as a guide to mark the hole. Stay clear of roof supports, obviously. Make a tape line 1/4" beyond the adapter perimeter. De-gloss the area with a Scotch- brite pad. No need to scuff. Just dull the paint. Clean with isopropyl alcohol and let dry thoroughly. Blow dryer if it's wet and/or cold out. Apply three 1/8" beads of the Window-weld on the face of the adapter. Then press the adapter down onto the roof until the adhesive oozes out the sides. It's not necessary to clamp. If you do, use a lot of lightly set clamps and spread out the clamp force over the whole surface area. Using the adhesive that oozes out, make a fillet around the adapter with a double gloved finger. Pull the tape within 15 minutes. Cure is fast on outside. Let cure overnight and then proceed with the fan install. We recommend using butyl tape for the fan install. Cover the fan flange with 1 1/8" wide tape. Place onto of adapter and press down. Then drill pilot holes through the adapter and into the van roof. If the screws are going to go into a roof support beam then drill a clearance hole in the beam. You only want the screw to engage the adapter and outer skin. Use a step drill to keep from plunging through the skin. You may need longer screws. Tighten them very lightly against the fan flange. Some butyl will ooze out which you can trim off. Coat the fan flange adapter and onto the roof about 1/2" with brush on bed-liner or Flexseal from the TV guy works well. Some sealants will melt the fan plastic so you might try it on a portion of the interior bezel first. You'll cut a lot of that piece off. Good idea to check the integrity and reapply the sealant every so often. Dicor self leveling sealant also works but looks a little messy.

If you desire a different location than shown, please call first before ordering, 541-49O-5O98

Van owner and/or installer assumes all risk associated with roof top mounted items and/or components. Van owner and/or installer recognizes and agrees that this product, and each of its component parts, is sold “as is” and that seller makes no representation or warranty of merchantability that the product is fit for any particular purpose.  

Pair with our Insulated Vent Fan Cover and Maxxfan Deluxe 7500K or 7000K Electric Lid Opening

This adapter fits on a Nisan full size van.

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 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.

IMPORTANT

Fits a 14" x 14" opening.

Fan adapters work with the  Maxxfan Deluxe series and the Fan-tastic Vent fans.

The outside adapter will fit anywhere along the cargo part of the roof. Longer screws than came with the vent fan may be needed.

The vent adapter outside dimension is 16 3/4 X 16 3/4.   If you are using a Maxxair vent our adapter fits the Maxxfan Deluxe series, other Maxxair vents have a wider flange. You will need a wider adapter. Please text Hein at 541-490-5098 for help.

If you order the framing strips they will come in a separate box.

The option with butyl tape includes 64" of tape. If the butyl tape is stuck to the plastic, put it in the freezer for 30 minutes. It will release,  then let the butyl tape return to room temperature.

We make adapters to fit air conditioners and adapters for offset locations. Please contact us so we can verify size and location.

Click here for our custom adapter inquiry form.

Roof Vent Adapter Install procedure: We recommend 3m Window-weld or Sikaflex 221 adhesive. Locate and cut the 14 x 14 hole. You can use the adapter as a guide to mark the hole. Stay clear of roof supports, obviously. Make a tape line 1/4" beyond the adapter perimeter. De-gloss the area with a Scotch- brite pad. No need to scuff. Just dull the paint. Clean with isopropyl alcohol and let dry thoroughly. Blow dryer if it's wet and/or cold out. Apply three 1/8" beads of the Window-weld on the face of the adapter. Then press the adapter down onto the roof until the adhesive oozes out the sides. It's not necessary to clamp. If you do, use a lot of lightly set clamps and spread out the clamp force over the whole surface area. Using the adhesive that oozes out, make a fillet around the adapter with a double gloved finger. Pull the tape within 15 minutes. Cure is fast on outside. Let cure overnight and then proceed with the fan install. We recommend using butyl tape for the fan install. Cover the fan flange with 1 1/8" wide tape. Place onto of adapter and press down. Then drill pilot holes through the adapter and into the van roof. If the screws are going to go into a roof support beam then drill a clearance hole in the beam. You only want the screw to engage the adapter and outer skin. Use a step drill to keep from plunging through the skin. You may need longer screws. Tighten them very lightly against the fan flange. Some butyl will ooze out which you can trim off. Coat the fan flange adapter and onto the roof about 1/2" with brush on bed-liner or Flexseal from the TV guy works well. Some sealants will melt the fan plastic so you might try it on a portion of the interior bezel first. You'll cut a lot of that piece off. Good idea to check the integrity and reapply the sealant every so often. Dicor self leveling sealant also works but looks a little messy.

If you have questions about this product you can call Hein at 541-49O-5O98