North Country Semi-Weathering Gray/Black (Strata Gray)

Arlington’s Colonial Village two-story brick apartments are designed in the Colonial Revival Style which are symmetrical. Built between 1935 and 1940, underwent a major renovation in 2012. North Country Slate supplied our Semi-Weathering Gray/Black, often called “Strata Gray” for this renovation.

A close up of the Colonial Village Apartment shows the varying shades of gray with dark gray and Black inclusions. These slates will change to tones of buff, tan and brown over time. Depending on the quarry source, the weathering process can take place within a few months or longer.

This Roland Park home in North Baltimore replaced their roof with 30 squares of our North Country Semi-Weathering Mottled Gray/Black slate (20” x 10” x ¼” – 3/8”). Other roofing details include; copper snow guards installed above the entrance way, slate dormer cheeks and open copper valleys.

ASTM S-1 Rated Strata Gray roof with copper valley flashing.

North Country Semi-Weathering Mottled Gray/Black roof with slate dormer cheek and copper snow guards.

Great example of a Semi-Weathering Mottled Gray/Black slate’s shades of gray and black in a stripe-like pattern.

Vermont Strata Gray slate turret.

North Country Semi-Weathering Grey/Black can exhibit a light to medium range of gray background shades with black stripes at different orientations

161 squares of 18" x random width x 1/4" - 3/8" was supplied. Semi-Weathering Grey/Black slate, also known as Strata Gray has a color range from medium to dark grey with linear markings. Some of these slates may weather to brown tones over time.

Lincoln University's Vail Memorial Hall in Chester County, PA with Semi-Weathering Grey/Black (Strata Gray) slate roof. This slate has varying shades of gray with some inclusions of dark gray and black. A percentage of these slates will weather to brown tones when exposed to the elements.

Semi-Weathering Grey/Black (Strata Gray) is a medium gray tone slate and is typically textured.