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Our minicell kits are very popular and fairly easy to install. We don't go with thick insulation (high R value) simply because it doesn't help. A van is not sitting on a foundation with dead air space so keeping the floor warm in cold is a loosing battle. The minicell system is comprised of...

Just scrolled through the build so far. Nice workmanship and impeccable attention to detail. Appreciate all the photos showing the Thinsulate SM600L. It has been a great product for us. Are you planning on any audio upgrades? All the best, Hein DIYvan 541 490 5098

Thinsulate won't hold water (hydrophobic) and allows for some airflow so moisture will drain and then dry out. The NeverWet trick works amazingly well. You probably would want to spray any exposed steel wih Rustoleum truck bed coating spray or equivalent before installing Thinsulate. All the...

We have used 3M Thinsulate AU4002-5 1" thick double scrim underneath the vehicle. Thinsulate is hydrophobic so wont absorb moisture. Another trick is to spray the exposed scrim with Rustoleum NeverWet so it repels water. Thinsulate is engineered to absorb noise in addition to providing a thermal...

I used Pro/Engineer which is now Creo for our Sprinter build. Over 95% of the parts and components were CNC fabricated. Probably the most extensively CAD driven van design/build ever done. Onshape is pretty cool because it runs in the cloud via your browser. All the best, Hein DIYvan 541...

Congratulations with your new van and project. Not a lot of NV builds out there and looks like you are making great progress. Your kitchen sink/electrical cabinet build is really nice work. Thank you for using our adapter to install the vent. We hope you will consider 3M Thinsulate for your...

We are using Thinsulate(TM) AU4002-5 under floors. It is super easy to install. Roll it out then put your floor on it. We have used minicell foam for many years as well. Minicell is a little more supportive but Thinsulate(TM) is adequate and offers better noise reduction. We do recommend PVC...

Greetings Savana/Express enthusiasts. We are now able to produce vent adapters for the Savana/Express vans. Our adapters absorb the contours of the roof and provide a flat slightly elevated platform for the RV vent. We have been making these for other vans for some time. All the best, Hein

Thanks for the mention. (our contact info is at DIYvan.com) One issue we've seen with fiberglass is if it's not well contained then you'll be breathing it. Small fibers tend to shake loose from vibration and air currents (opening/closing doors) can blow/suck them out of the wall cavity and...

Great resource thread! We provide 3M Thinsulate(TM) and other up-fitter parts and supplies to the custom van industry. We are both proud and fortunate to have many of the top DIY and professional van builders as our customers. All the best, Hein & Kim DIYvan.com Impact, Inc. 541 490 5098

Do like the features of the Pro4X but didn't want the lift. The truck we got has most of the creature features. We are enjoying it and looking at having our chrome grill surround and bumper color matched either with vinyl wrap or paint. Leaning towards getting new parts to have painted and then...

We are also new 2017 Titan SL crew owners. Planning on getting the chrome grill and bumper wrapped or painted body color (gun metal). Then some black wheels but no lift or anything off-road planned. Got it mostly for towing the boat and highway cruising. But can't help modding stuff so who...

Great Transit build and cool to see what you are coming up with. The FrostKing self adhesive foam duct insulation is a good alternative to Dynamat, etc. But it's not R3. Closed cell foam is typically about R3 per inch so with a product thickness of about 3/16" your not getting a lot of thermal...

Congratulations with the new van! Most all vehicles have some design issues that leave us wondering. We used 3M Windoweld to seal the shopping cart trim clip holes from the inside. Thinsulate(TM) won't absorb moisture so water will run through and out the drains. Don't drill holes near the...

Credit for the inverter->inverter/charger system goes to Dave Orton. He explains it and has a diagram here: http://www.ortontransit.info/electric.php The vehicle powered inverter provides 120V power while driving. This is used to heat water and air and also charge his house batteries via the...

Thank you for writing. The smallest roll of 3M Thinsulate(TM) we offer is 5 linear feet (@60" width) so 25 sq ft. It would be an appropriate noise and thermal insulator for the areas you mention. We stock 3 varieties: SM400L, SM600L, AU4002-5 and also have Low-E (3/16" closed cell aluminum...

Good points and please allow me to suggest another material instead of Roxul or Fiberglass. 3M Thinsulate(TM) SM600L is specifically engineered for use in vehicles and passes FMVSS-302. It's hydrophobic so moisture does not affect it. Impressive noise reduction as well. Based on the feedback we...

Isotemp water heater using engine heat is very nice for our Sprinter. Water is hot after a 20 minute drive and stays hot for hours. It also has a 750 watt element. All the best, Hein DIYvan.com

The gap and roof curvature isn't too large that butyl tape would not work. Just use two or three layers in those areas with more gap. Looks like there is a roof coating that you might want to prep first. We can make an adapter but wouldn't have that ready for you until sometime later next week...

Kim mentioned that you called. We make adapters for other vans and would be happy to add the Express to our list of supported vehicles. Can you post or send a photo of where you would like to place the vent? Then we can take it from there and let you know when we have an adapter ready for you to...