Underfloor insulation

Thermal resistance below living areas.

Recyclable materials

Chosen for end-of-life recovery.

Radiant heating

Heat radiated from floors or panels.

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.

Roof structure (I-joists)

Light, strong joists in pitched roof systems.

Renewable energy

Energy from solar, wind, or water sources.

Rainwater reuse

Collecting rain for toilets and gardens.