apron
A flat broad piece of finished lumber or trim placed directly under a windowsill. 2.A flat piece of wood mounted […]
Glossary
appurtenant structure
A structure attached to the exterior of a building or erected on the roof, usually designed to support service equipment
Glossary
appurtenance
1. Any built-in, nonstructural portion of a building, such as doors, windows, ventilators, electrical equipment, partitions, etc. 2. An incidental
Glossary
approving authority
The individual agency, board, department, or official established and authorized by a political subdivision (e.g., state, province, county, city, or
Glossary
approved ground
A ground (such as the steel framework of a building, a concrete-encased electrode, or a ground ring) that meets the
Glossary
approved equal
Material, equipment, or method approved by the architect for use in the work, 1 as being acceptable as an equivalent