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| Horizontal structural unit (beam) over an opening; support member over a door or window opening |
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| Vertical wall or tier of masonry units one-unit thick |
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| Sheet metal or plastic used at breaks in a building where water might leak in. Is run under the building material to create a barrier. |
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| Openings in masonry joints left out atthe base of a masonry wall so moisture may run out. |
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| A two wythe wall; they are seperated by an air space and connected with joints. 2" air space where insulation could be placed. |
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| unit laid flat on its bed surface with end facing out. |
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| Horizontal mortar bed on which masonry unit is laid |
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| unit is laid vertically with header in the morter |
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| Powder or stain that forms on mortar or concrete, caused by moisture leaching out salts from the material in the masonry |
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Definition
| metal fastener that is laid in the joint of the two wythes. |
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Definition
| metal fastener that is laid in the joint of the two wythes. |
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Definition
| four inch module size or a multiple of four inches |
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| ladder and truss reinforcing |
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Definition
| metal rods welded together in the appropriate pattern and laid in the mortar joint between wythes |
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Definition
| device used for supporting a line at the center of a wall |
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| Built up masonry corner used as a guide in laying a wall |
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| pole marked with key masonry heights that is used as a guide when laying corners |
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Definition
| Shelf or ledge built out from the face of a masonry wall |
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| Masonry units laid on edge with end facing out |
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Definition
| Center brick or stone in an arch |
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| amount of water a mosonry unit will absor b when completely submerged in either cold or boiling water |
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