Thanks Zev. It's really worthwhile to cut down on the road noise and help acoustic response, not to mention the thermal barrier! I was actually pretty surprised the night I did the floors and finished the front doors I closed the car up, the garage was nice and warm plus the heatgun and heat retention of the mats heated up the interior.....I shut the car and didn't open the garage for a few days....after it got down to -10 outside. Garage was cold, interior of the car was still warm
. I'm thinking it'll stay cooler in summer and warmer in winter when its parked outside and more amenable when racing through the desert (more on that in another post)
Back to sound deadening...
Front doors, cover the outside skin as best you can (this wasn't conducive to pictures) and finish the inside skin like the rears. I opted for a bit less coverage up top on the inner door skin vs. the rears just in case I ever had to replace window parts:
If you're going this far, add acoustic baffles or extra sound deadening directly behind any speakers:
There's roughly 12 sq ft of deadener in each front door
Front tires and fenderwells are notorious in our cars for transmitting noise inside the cabin, so I triple coated the tops of the fender liners in sprayliner:
I'll finish the front fenders with sound deadening on the inside of the metal, they are paper thin!