Junction detailing
Smart construction of meeting points.
Joule efficiency
Efficiency of energy conversion devices.
Joist insulation
Thermal barriers within floor/roof joists.
Joint sealing
Airtight detailing of panel seams.
Joint layout
Seam alignment in panelized construction.
Yield curve tracking
Solar performance monitoring.
Yield (energy)
Output from solar over time (kWh).
Yellow-label wood
CE-certified timber.
Year-round comfort
Stable temperatures through insulation and HVAC.
Yard infiltration
Natural drainage into green areas.