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

Semi-weathering Gray/Black (Strata Gray) Roofing Slate

North Country Semi-Weathering Gray/Black (Strata Gray) is a premium quality roofing slate of varying shades of gray with numerous inclusions of black and dark gray. A small percentage of these slates will weather to tones of brown and buff over time. North Country Semi-Weathering Gray/Black (Strata Gray) is produced by select Vermont quarries and meets or exceeds ASTM test requirements as an S-1 rated roofing slate.

Arlington’s Colonial Village

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.

Close Up Of The Colonial Village Apartment

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.

Roland Park Home In North Baltimore

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.

Rated Strata Gray Roof With Copper Valley Flashing

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

North Country Semi-Weathering Mottled Gray/Black Roof

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

Semi-Weathering Mottled Gray/Black

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

Vermont Strata Gray slate turret.

Semi-Weathering Grey/Black

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.

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testimonials

I have never had anything except a 5 Star Experience when working with North Country Slate.

- ABC Supply, Outside Sales

When our clients are looking for a natural slate roof, we highly recommend North Country Slate.

- Raines Brothers, Inc.

We have used North Country black on a large number of occasions, and we’ve found it to be an excellent quality slate it is very “workable”.

- John Chan, The Durable Slate Company

FAQ

Looking for a slate roofing contractor?
We work with the top “slaters” to ensure quality installation from slate roofing repairs, restoration or new construction. Read More
What sizes of roofing slate are available?
The standard sizes for roofing slate start at 12″ in length and increase by 2-inch increments up to 24″ in length. Read More
How much does a slate roof cost? We are often asked by designers, architects, home and building owners “What will a slate roof cost me”?
On average, North American produced S-1 rated roofing slate will cost $400 – $600 USD per square (100 square feet) or $4.00 to $6. Read More

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