Indoor Air Quality (IAQ)

Indoor Air Quality (IAQ) A measurement of the overall cleanliness of the air within a building or home. The EPA has a builder program called Indoor airPLUS.

Insulated Concrete Forms (ICF)

Insulated Concrete Forms (ICF) Rigid plastic foam forms that hold concrete in place during curing and remain in place afterwards to serve as thermal insulation for concrete walls. The foam sections are lightweight and result in energy-efficient, durable...

HVAC (Central Air Conditioning)

HVAC stands for heating, ventilation, and air conditioning. Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (i.e., openings in the walls, floors, or ceilings covered by grills) carry cooled air from...

Hubbert’s Curve

Hubbert’s Curve A prediction, made by a geologist in the late 1950s, that classified fossil fuels as finite and said that after a peak time access to these resources would rapidly decline, eventually diminishing entirely.