Decided to rip out overhead bed corners! (1 Viewer)

[Nikki]

Hi everyone,
Just spent a couple of hours ripping out the corners of my overhead cab bed area.
Condensation over the last wet summer and very cold winter ( full time in van ), has finally eaten away at the wood in the corners, also damage previously from a leak that was rectified over a year ago.
There was absolutely no insulation in the corners and along the inside of the screws that attach the metal trim on the outside. Cold air, moisture, contrast with warm air inside, bingo, and I do have my bedroom windows on the latch, which makes it even more annoying!!
The base of the bed is thick with polystyrene inside it, and under that is an gap then the fibreglass that you look up at when you're driving. Can I put insulation directly onto the fibreglass or do I need to line it with something first. Because of the awquard area I would like to use a soft insulation material, rather than a board, any suggestions?
Any advice would be great, I hope bill or grommit might see this post!!
I am going to get an oscillating cutter to cut away some more of the area and then thought to leave for a few days or more to dry a bit. I'm aiming to go half way along bottom of window and half way up, so literally a triangle of the corner both sides.
Thanks everyone

 

[TheBig1]

first things first, are you certain you have sealed the leaks? as that is way more damage than condensation. you then need to find the extent of the rot and cut away in a way that you can re-board and keep it looking oem. i suggest you remove the inner window frame and establish if they have leaked

rather than polystyrene insulation i recommend using urethane foam board sealed up using injection foam.