PLTW CEA 2.3 Vocabulary Terms

The maximum compressive stress a material can withstand without failure.

• Compression strength

• Concrete

• R-Value

• Tensile Strength

A solid, hard material produced by combining Portland cement, aggregates, sand, water and sometimes additional mixtures.

• Concrete

• Fascia

• Rebar

• Foundation

The finish board covering the edges of rafters and eaves.

• Footing

• Fascia

• Stud

• Rafter

The lowest, widest part of the foundation that distributes the load over a broad area of the soil.

• Foundation

• Fascia

• Footing

• Sole Plate

The lower part of a building, which transfers structural loads from the building to the soil.

• Footing

• Fascia

• Foundation

• Rebar

The energy needed to warm outside air leaking into a building through cracks around doors, windows, and other areas.

• Transmission Load

• Radiant Heat

• Heat Gain

• Heat Loss

Energy radiated or transmitted as rays or waves, in the form of particles.

• Radiant Heat

• Thermal Conduction

• Thermal Convection

• Heat Loss

Member of a roof structural frame that supports the sheathing and other roof loads.

• Stud

• Rafter

• Blocking

• Fascia

Steel bar used to reinforce concrete.

• Rebar

• Stud

• Foundation

• Fascia

The numerical value used to indicate the resistance to the flow of heat.

• R-value

• U-factor

• cost estimate

• thermal conduction