I want to insulate the roof of my hiace, has anyone any tips for a good material to use. I don't know where to start.
You could try aircell permishield? Or maybe speak to an upholsterer to see if there's an insulated lining you could use.
Looking for a professional looking job?
If NOT, buy some 8mm closed cell foam sleeping mats from an outdoor / camping store (around $10-$12), and a tube or two of liquid nails (or kwik grip) and cut and paste. Get different coloured foam mats and get creative.
I have used pink batts for that job in the past then covered them with light weight laminated wood sheets. I bought the wood sheets from a specialist Caravan shop.
The important thing with pink batts is that you need to install a damp barrier over the top. The damp barrier is basically a sheet of plastic taped down with tape. There are a number of different products on the market for that job. Go to Bunnings and see what they have.
If you don't install the damp barrier the fibres will collaps when they get damp / wet. Also make sure you wear a protective mask. The fibres are quite small and shouldn't be inhaled.
Clark rubber sell a load of different foams.Roof vent would be good to stop condensation especially if you've got wet gear in the van.
Have all the girls you have sex with in the van donate their underwear for the cause!..... no damp barrier required!
Should offset the smell of wet sailing gear.
You will also save money on adhesive...
Ooooh was that a bit rude......just an idea I had.
A couple of ideas here, Dynamat won't insulate but will take out the rattles I have used R1.5 nylon wool bats almost everywhere depends on how much space you want to give up.
For self-adhesive insulation, suggest you try:
www.megasorber.com/
www.jenkinsrubber.com.au/?stg=657&view=657
If you want insulation from road noise. Try a solid bulkhead to screen off the drivers cabin.
There should be a safety benefit. Your AC and sound system will work a treat.
If your van lives in the sun, you probably have no choice, but cargo bay insulation seems to create as many problems as it solves.