It was time to add some insulation to the ceiling of the van, now that with the Murphy bed installation, access to the ceiling is closing up.
I already made the decision to use primarily Poly-Iso and Denim insulation and started to fill the ceiling cross-members with Denim. The cross-members allow for approximately 1-1/2 inch insulation, when you follow the curvature of the roof.
Poly-Iso is fairly rigid and not bendable, so I used three 1/2 inch layers to fill the area between the beams and I still needed to add cuts to the insulation, to make a better fit.
The panels were glued to the ceiling with 3M 90 spray glue and some of the seams covered with a very sticky HVAC tape. While this all will substantially reduce the heat build-up inside the van, I know that during the hot and humid Florida summers will wreak havoc on the interior temperature control. There is likely a greater benefit in winter, when it can keep the cold out long enough, for the early sun to heat up the van.
A good alternative to the Poly-Iso is Thinsulate, an automotive bat insulation, that is easier to install. It is pricier though and has a lower R-value. At a later stage, I will cover the insulation with a thin plywood.
With the Medium High Roof of my Ford Transit and my 5′-7” height, I have barely an inch left, to walk up straight inside the van. With a High Roof van or when you’re smaller than me, I would advice to add another layer of Poly-Iso along the entire length of the van, covering all the ceiling cross-members and thus avoiding any heat transfer from the metal of the cross-members.
- ½ in. Poly-Iso ➜ http://18.104.22.168/buy/poly-iso
- 3M 90 Spray Glue ➜ http://22.214.171.124/buy/3M90
- HVAC Tape ➜ http://126.96.36.199/shop/hvac-tape
- Optional: Thinsulate ➜ http://188.8.131.52/shop/thinsulate
I need someone who can do for me insulation on my cargo van email me . [email protected] Louisville ky
Unfortunately, I’m just a guy that does his own vanconversion and shows it off on YouTube 🙂 If you have it done, you should consider using spray foam. Look for a local company that is specialized in it (often for homes). You could get the best insulation for a reasonable price.