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A perpend stone, perpend (parpen, parpend, perpin, and other spellings), through stone, bond stone, or tie stone is a stone that extends through an entire wall's width, from the outer to the inner wall. Such stones are especially used to lock two wall layers structurally together. Usually
A perpend stone, perpend (parpen, parpend, perpin, and other spellings), through stone, bond stone, or tie stone is a stone that extends through an entire wall's width, from the outer to the inner wall. Such stones are especially used to lock two wall layers structurally together. Usually stone wall
Stone walls are a kind of masonry construction that has been used for thousands of years. The first stone walls were constructed by farmers and primitive people by piling loose field stones into a dry stone wall. Later, mortar and plaste ...
s are built with two layers of stone, an inner and an outer layer, with the space between them sometimes filled with rubble
Rubble is broken stone, of irregular size, shape and texture; undressed especially as a filling-in. Rubble naturally found in the soil is known also as 'brash' (compare cornbrash)."Rubble" def. 2., "Brash n. 2. def. 1. ''Oxford English Dictionary ...
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The term ''perpend'' is also used to refer to a joint in brickwork also called a ''cross joint'' or, when extending through the entire wall, a ''transverse joint'' or perpend bond.Phillipps, Alfred Edward, ed.. ''Masonry construction; a guide to approved American practice in the selection of building stone, brick, cement, and other masonry materials, and in all branches of the art of masonry construction''. Chicago: American school of correspondence, 1908. 64. Print.
References
Stonemasonry Building stone Types of wall {{Architecturalelement-stub