Definition of the term Aggregate
Crushed stone, slag or water-worn gravel that comes in a wide range of sizes which is used to surface built-up roofs.
Crushed stone, slag or water-worn gravel that comes in a wide range of sizes which is used to surface built-up roofs.
The rate of flow of electricity through wire - measured in terms of amperes.
A service to resolve complaints, as in NACHI's Arbitration Service.
The practice of nailing roofing felts to the deck under the overlap, in addition to hot mopping, to prevent slippage of felts.
A supporting member either of wood or steel. Structural support member (steel, concrete, lumber) transversely supporting a load that transfers weight from one location to another.
Funds or a bid bond submitted with a bid as a guarantee to the recipient of the bid that the contractor, if awarded the contract, will execute the contract in accordance with the bidding requirements of the contract documents.
Short 2x4s used to keep rafters from twisting, and installed at the ends and at mid-span.
A truck used to hoist heavy material up and into place, to put trusses on a home or to set a heavy beam into place.
A small, corrugated metal strip (1"x6"- 8" long) nailed to wall sheeting or studs. They are inserted into the grout mortar joint of the veneer brick, and hold the veneer wall to the sheeted wall behind it.