Roof insulation? (FJ40)
- Thread starter calparts
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I need to repair my roof - I plan to insulate it some how.
- Thread starter
- #3
There are various types of insulation: vibration, thermal, sound. All can be found in thin sizes. I’m just not sure if any are needed or work well with our tops or the headliners that we glue on.
Noise in a FJ-40, say it ain't so. Yea I'm more interested in keeping heat out in the summer. I have a large back heater and can/have drive around at 30 MPH in -30 weather wearing shorts and a tee shirt with the windows down. Kick and cowl vents closed. I'm guessing some sort of glue in closed cell foam.
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- #5
Same for me. Heat is the only issue in this vehicle.
cruiserkev
3 decades in the same FJ40
I used an indoor/outdoor carpet from Lowe's for my headliner. Dampens noise, insulates and in my opinion looks better than the white one.
1911
chupacabra
When I got tired of re-gluing the factory headliner back up numerous times, I tore it out and replaced it with marine (boat) carpet. Helps a little with sound and maybe heat, but not a lot. Mine is not a resto.
What they said. Lizard skin for sound n heat has tiny glass beads (hollow) as an insulator, and then an indoor/outdoor carpet would provide two different layers for heat to radiate through and is likely be your best bet. I don’t have a top but was considering it; I’ve used lizard skin on firewall and floor and prefer it.
sleepycruiser
I will get by….I will survive -Touch of Grey LC200
1911
chupacabra
I bought mine from a local boat upholstery place; sorry, no link for it.
I did Lizardskin.
cruiserkev
3 decades in the same FJ40
Haha, no links either. A $20 carpet and 4 tubes of liquid nail from Lowes is what I bought. Use your old headliner as a template to cut it into the right shape. Leave it outside for a couple days until the adhesive cures, it really stinks at first but it will never sag if you apply it correctly.
I used a self adhesive closed cell foam with an aluminium facing.
Although i have an aftermarket steel roof myself, I'd definitely recommend a metallic layer in there somewhere as a radiation barrier; otherwise its a bit of a green house with the GRP roof.
The most effective way to keep the heat out though is to fit a roof rack so you're hiding in the shade.
My foam came direct from China and was very cheap and good quality. You might want to give it a few weeks before ordering that right now though... :/
Although i have an aftermarket steel roof myself, I'd definitely recommend a metallic layer in there somewhere as a radiation barrier; otherwise its a bit of a green house with the GRP roof.
The most effective way to keep the heat out though is to fit a roof rack so you're hiding in the shade.
My foam came direct from China and was very cheap and good quality. You might want to give it a few weeks before ordering that right now though... :/
I sprayed Lizard Skin, then Kilmat, and finally the headliner, and I am very happy with the results. It’s been 6 months since I did the work in a very hot and humid climate, and it has been holding up with no issues.
sleepycruiser
I will get by….I will survive -Touch of Grey LC200
Did you use the CC headliner?
I did Lizardskin with the CC headliner. I haven't had the top on since I did the work, but it looks cool.
One way to get a cool FJ40 roof is to install a roof rack with a floor - keeps the sun off the FJ40 roof. But, on the hottest days, the radiant heat from the FJ40 roof pales in comparison to the floor-furnace!
