(A) Slate shall be Genuine Unfading BUCKINGHAM-VIRGINIA SLATE as furnished by the Buckingham-Virginia Slate Corporation, 1 main street, P. O. Box 8, Arvonia, Virginia 23004-008, of the following sizes and thicknesses:
(B) All slate shall be hard, dense, sound rock, punched for two nails each. No cracked slate shall be used. All exposed corners shall be practically full. No broken corners on covered end which sacrifice nailing strength or the laying of a water-tight roof will be allowed.

(A) On all surfaces to be covered with slate, furnish and lay genuine asphalt saturated rag felt of an approved equal, not less in weight than that commercially known as "30 pound" felt or equal.
(B) Felt shall be laid in horizontal layers with joins lapped towards the eaves at least 2", and well secured along laps and at ends necessary to properly hold the felt in place and protect the structure until covered with the slate. All felt shall be preserved unbroken, tight, and whole.
(C) Felt shall lap all hips and ridges at least 12" to form double thickness and shall be lapped 2" over the metal of valleys or built-in gutters.

(A) The entire surface of all roofs, unless otherwise specified, and all other surfaces so indicated on all drawings, shall be covered with slate as herein specified, in a proper and watertight manner.
(B) the slate shall project 2" at the eaves and from 1/2" to zontal courses with 3" headlap, and each course shall break joins with the preceding one by at least 3". Slates at the eaves or cornice line shall double using same thickness slate for under-eaves at first exposed course. Under eave slate to be approximately 3" longer than exposure of first course.
(C) Wood can't strip at eaves to be furnished by others
(D) Slates overlapping sheet metal work shall have the nails so placed as to avoid puncturing the sheet metal. Exposed nails shall be permissible only in top courses where unavoidable.
(E) Neatly fit slate around all pipes, ventilators, and other vertical surfaces.
(F) Nails shall not be driven so far as to produce strain on the slate.
(G) cover all exposed nail heads with elastic cement. Hip slates and ridge slates shall be laid in elastic cement spread thickly over unexposed surface of under courses of slate, nailed securely in place and carefully pointed with elastic cement.
(H) Build in and place all flashing pieces, snow-guards, etc., furnished by the sheet metal contractor and cooperate with him in doing the work of flashing. (If roofing contractor has the flashing and sheet metal work under his contract, change this paragraph to suit.)
(I) Upon completion, all slate must be sound, whole, clean, and the roof shall be left watertight and neat in every respect, and subject to the architect's approval.