1947 UGL Gilsalume Gilsonite Asphalt Aluminum Roof Paint Ad - "Actually cools buildings as much as 15°"
1947 UGL Gilsalume Gilsonite Asphalt Aluminum Roof Paint Ad - "Actually cools buildings as much as 15°"

1947 UGL Gilsalume Gilsonite Asphalt Aluminum Roof Paint Ad - "Actually cools buildings as much as 15°"