While building materials can affect the energy efficiency of a building, they are not a major factor influencing its overall energy consumption.

While energy-efficient buildings can provide increased occupant comfort, this is not a direct benefit of energy efficiency itself.

Natural ventilation is not a common energy-efficient building design strategy, as it can lead to increased energy consumption for heating and cooling.

Energy-efficient materials are not a type of sustainable building material, as they do not contribute to the sustainability of a building.

Passive House is not a common energy-efficient building certification program, as it is a specific type of building design that meets certain energy efficiency standards.

Wind turbines are not a common energy-efficient building technology, as they are typically used for large-scale energy generation.

Rainwater harvesting is not a common energy-efficient building design feature, as it does not directly contribute to energy savings.

Using energy-efficient cleaning products is not a common energy-efficient building maintenance practice, as it does not directly contribute to energy savings.

Installing solar panels is not a common energy-efficient building retrofit measure, as it is a major investment that may not be cost-effective for all buildings.

Banning the use of certain energy-inefficient building materials is not a common energy-efficient building policy, as it can be difficult to enforce and may not be effective in reducing energy consumption.

Studying the behavior of occupants in energy-efficient buildings is not a common energy-efficient building research topic, as it is difficult to measure and quantify the impact of occupant behavior on energy consumption.

Decreasing cost of energy-efficient building materials and equipment is not a common energy-efficient building industry trend, as the cost of these materials and equipment has been increasing in recent years.

Measuring and verifying the energy savings of energy-efficient buildings is not a common energy-efficient building challenge, as there are well-established methods for doing so.

Improving the energy efficiency of existing buildings is not a common energy-efficient building opportunity, as it is a challenging and expensive undertaking.

Increasing property value is not a common energy-efficient building goal, as it is not directly related to energy efficiency.