Hi everyone! For our air flow in the van we choose Maxxfan deluxe 40x40 cm. This fan in meant to be build on the thick roof so wooden frame is necessity for strong fixation, sealing. At the end we used roof hermetic around the outside edges. After all these steps we do not have any leaking inside the van.
Timecodes:
0:00 Intro
0:42 Wooden frame
1:30 Cutting the hole
3:48 Sanding, primer
4:15 Installation