Underfloor insulation
Thermal resistance below living areas.
Photovoltaic panels (PV)
Solar panels for electricity.
Performance simulation
Energy and comfort modeling tools.
Passive house principles
Ultra-low energy design standards.
Panelized construction
Wall/roof units prefabricated.
Utility room
Designated space for washing and storage.
User interface
pps or displays to manage building systems.
Urban heat island
Higher urban temperatures due to materials.
U-value
Measure of heat flow through a material; lower = better.
Prefabrication
Factory-built building components.