Grey On Underside Of Roof

They are both really classic and look sharp but my preference is the gray because its a little less heavy.

Grey on underside of roof.

Lichens is not a stain in the proper sense of the word but on asphalt wood or some other surfaces it can damage the roof and reduce its future life. So the metal gray is dominant. In terms of siding colors there is so much that goes into picking an exterior color. Black brown or gray stains on roofing products due to debris left on the roof surface such as piles of leaves and organic waste from nearby trees.

Yellow and gray is a classic color pairing that works well on all types of houses. I need to take another set of pics to sure the color more accurately. In the vast majority of cases the mold growth is caused by condensation. The white or light gray stains on the stone wall at above right can also appear on stone or slate or other roof materials.

The yellow is more pronounced on a sunny day. The house sits on a corner and the side of the house really shows a lot of roof. For a more traditional look a sunny light yellow pairs beautifully with a light gray roof. This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.

For a more edgy look try a brighter yellow with a dark gray roof.