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Reclaimed Slate

New slate is generally cut thicker than slate from the last century. Subsequently, repairs using new slate are very easy to see on the roof. The replacements force the surrounding slate up, often leading to further breakage. They are frequently a mis-match of color, since the new slate is not weathered.


A good solution is to use reclaimed slate. These are good quality slate, saved when another roof is dismantled. So long as they are of equal or better quality than the roof being repaired it is a legitimate re-use of materials. They most often will match color better and fit into the roof without disrupting the surrounding slate.

Our showcase reclaimed slate measures 24” x 36“ and was taken from a barn in Lancaster County, PA. A hundred of these colossal slate found a new resting place as part of a graduated roof on a Baltimore County home. The barn was a hundred and fifty years old! No doubt these slate will outlive their new residence! 


Buckingham slate, from Arvonia VA, is geologically defined as a Phyllite, not a slate, while still having the characteristic ‘slaty cleavage’ of slate, enabling the splitting of the rock.  Phyllites are far harder than slate. There are few in the entire world (Norway and Brazil have the only other sources). An unlimited life expectancy!


Peach Bottom slate was quarried from a mountain ridge that runs across the Maryland/Pennsylvania line in the Delta-Cardiff area. For over a hundred years this fine quality slate was quarried by Welsh immigrants, finding destinations throughout the United States. It is a treasure we share with Pennsylvania. At Gummer Slate we value this as our greatest reclaimed asset.



We are reclaiming between 80 and 100 squares of Random x 20 Vermont SWG with some Reds and Purple . They will be available in 3-4 weeks . We are looking to $300.00 a square pick up or $350.00 a square delivered if with in 15 miles of my shop . If For mor information, call Howard 443-934-2633


All unfading slate make excellent reclaimed material. This unfading red is in its second century of service!





Vermont Semi-Weathering Green & Purple Slate

Random 14" & 16"

* The traditional test for slate is to suspend the slate, holding a corner lightly between thumb and forefinger. A rap with a slate hammer (or knuckles) will produce a ‘ring’ for a good slate and a ‘thunk’ for the not-so-good. The pitch and sustain of the ring reflects the density and the presence of cracks or faults in the rock. A high sustained ring? The best!

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