Insulating the headliner?

[Ks Highboy]

What do you guys use to insulate the headliner? Also, do you stick it to the roof or on top of the headliner?

[fordman]

EDIT: i have never ever seen insulation above a headliner. rats must have eaten all of it away. i have seen once some glue liek substance on the roof of one of these trucks i have parted out.

[1971ford]

Mine had puffy sound deadener stuff (you know the greenish stuff with color flakes, reminds me of stuff under carpets) glued to the roof.
I am going to put the dynomat (or whatever brand) covering the whole roof area instead. Then maybe some of that puffy stuff that was on their originally, because rain is pretty loud on our thin metal roofs

[BiggDogg]

I bought a large sheet of foam insulation from Lowes/Home Depot, cut it to fit, and then stuck it to the roof. Since I put speakers in the headliner, I wanted something between the speakers and the roof, and the foam insulation was the perfect, inexpensive solution. It made the speakers sound better too

[cdeal28078]

I used the shiny stuff from Lowes also but used a spray on glue. Made a lot of difference in the sound. Mine had nothing in there from the factory
clint

[shaggys_bump]

Mine had puffy sound deadener stuff (you know the greenish stuff with color flakes, reminds me of stuff under carpets) glued to the roof.
I am going to put the dynomat (or whatever brand) covering the whole roof area instead. Then maybe some of that puffy stuff that was on their originally, because rain is pretty loud on our thin metal roofs

Mine also, Green puffy junk glued to the roof. my headliner is gone but this stuff is still hanging in there, i think i will replace it with Dynomat also.

[JMcTurnan]

Mine had absolutely nothing, no glues or anything.

[68_250]

I havent tried this yet but am going to this weekend. My cab has a few small cancer spots arounf the drip rails. I was thinking about injecting this open space between the external roof and internal roof with that expanding foam stuff. Any thoughts on that. I will only be doing this to my 71 as it has a hole large enough to accept the nozle fromthe foam can.

What do you guys think?

I havent done anything to my 68 yet.

[knightfire83]

I havent tried this yet but am going to this weekend. My cab has a few small cancer spots arounf the drip rails. I was thinking about injecting this open space between the external roof and internal roof with that expanding foam stuff. Any thoughts on that. I will only be doing this to my 71 as it has a hole large enough to accept the nozle fromthe foam can.

What do you guys think?

I havent done anything to my 68 yet.

If your not going to fix the rusted thru cancer spots the foam will likely not seal 100%, and the area will hold moisture. From there the rust will accelerate.

[67nukeford]

I havent tried this yet but am going to this weekend. My cab has a few small cancer spots arounf the drip rails. I was thinking about injecting this open space between the external roof and internal roof with that expanding foam stuff. Any thoughts on that. I will only be doing this to my 71 as it has a hole large enough to accept the nozle fromthe foam can.

What do you guys think?

I havent done anything to my 68 yet.

If you do that, make sure you get the foam that is the low expansion. The normal stuff has unbelievable pressure when it expands, and you don't want it pushing something out of shape!