03.020.0218 Wall system | Stone wall, coursed ashlar w/ rubble backing



This wall system illustrates a coursed ashlar wall with uncoursed, squared rubble stone backing. The coursed ashlar varies in dimensions of 4-16” at bonding stones. The bonding stones are full depth of wall and tie that wythes of masonry together, whereas the smaller stones are considered veneer, though they are loadbearing. The lower four courses of ashlar are quarry-faced with smooth finish ashlar above. The mass of masonry deflects bulk water penetration but is understood to take on a percentage of moisture that is free to evaporate slowly from the mortar joints on either side of the wall over time. The wall is topped with a splayed copestone that prevents water penetration and has drips at either underside edge to direct water away from running down the façade.

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