Thought i would share this with you all. This is a cheep and easy roof liner idea for those of us with 1st gen 4runners. I got this material from big lots. It was suppose to be a shop floor mat. $18 and another $15 for 2 cans of spray glue. The only problem i ran into was after it was all laid in, i think the glue reacted with the foam and producing some sort of gas. So it kept bubbling up. I had to poke a couple holes in the foam and keep pushing the air out until it was dry. But i love the result.
But after hunting for months I could never find the right stuff. So then I was going to use this.