| COLOR |
|
| Being rich
Blue-Black (sometimes called Oxford-Grey) in color,
Buckingham-Virginia Slate has the strength of color necessary for
architectural contrast and the dignity desired in fine buildings.
The color is unfading and can be matched at any future time. |
| LUSTRE |
|
| There is the
same difference between a lustrous and a dull slate as there is
between fine silk and cheap cotton. The lustre of
Buckingham-Virginia Slate develops highlights that give it
interest and character. |
| TEXTURE |
|
| The natural texture of
Buckingham-Virginia Slate makes it perfectly suited to either
formal or informal architecture. |
|
| HAND CRAFTED
NATURAL CHARM |
| Buckingham Slate is natural
rock, hand fashioned-its natural beauty and quality, and its age
old charm of hand craftsmanship cannot be duplicated by modern
machinery. |
| GENUINE UNFADING |
| One of the few
unfading slates. Fading in slate is an indication of
disintegration, and ugly whitening and flaking that weakens the
roof and ruins the architectural ensemble. Buckingham-Virginia
Slate is UNFADING under all conditions. (Buckingham Slate is
classed as an unfading slate in U.S. Geological Survey Bulletin
No, 586, "Slate in the United States," by Dale and others.) |
| LOWEST AVERAGE
ABSORPTION |
|
| "Will not be
injured through years of exposure to chemical fumes, soft coal or
oil smoke in industrial or other districts." (R. Notvest,
Consulting Engineer, National Slate Assn, 1921-26.) Shows the
least deterioration of any slate under corrosion tests. ("The
Resistivity of Slate against Acids and Alkalies" by R. Notvest and
Dr. H.S. Booth of Western Reserve University, Cleveland.) |
|
OUTSTANDING MECHANICAL STRENGTH |
| Report No. 3,
May 1926, of the Research Lab, of the National Slate Assn. on
"Tabulation of Essential Physical Characteristics of the
Commercially Important Slates in the U.S.A." shows that, on
average, Buckingham-Virginia Slate is outstanding as a roofing
slate of exceptional lasting qualities. One of the few slates with
equal strength with and across the grain. |
| HIGHEST
RESISTANCE TO ACID |
|
| of any American
slate. Average absorption of less that .02 per cent. (U.S. Dept of
Commerce, Bureau of Standards, Journal of Research, Vol. 9, Sept.,
1932, Research Paper No. 477, Kessler & Sligh.) Since moisture,
heat and freezing are the destructive elements, low absorption
means long life. |
| |
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