GAF timberline Charcol shingles are dark, neutral gray. There's conflicting information about dark shingles and cooling your home: many say even with proper ventilation in the attic, it's harder to cool your home with dark shingles. The lighter GAF timberline gray colors appear very or very cool - no neutrals. Does anyone have a color from this brand and line on your roof? I would love to know how the color appears once on your roof and see any pics with your siding color.