Quiet operation

Low-noise heat pumps and ventilation.

Quarterly performance check

Regular energy and comfort evaluation.

Quantification of savings

Measurement of energy/water savings over time.

Quick assembly

Reduced build time through prefab techniques.

Quality control

Monitoring and testing during production and construction.

User interface

pps or displays to manage building systems.

Utility room

Designated space for washing and storage.

Underfloor insulation

Thermal resistance below living areas.

Urban heat island

Higher urban temperatures due to materials.

U-value

Measure of heat flow through a material; lower = better.