Natural shading November 21, 2025 Joel Portillo Use of trees or landscaping for temperature control. Read more
Natural ventilation November 21, 2025 Joel Portillo Using airflow to cool and refresh interior spaces. Read more
Net-zero home November 21, 2025 Joel Portillo Home producing as much energy as it consumes. Read more
Open-cell spray foam November 21, 2025 Joel Portillo Lightweight foam providing sound control and good sealing. Read more
Permeable pavers November 21, 2025 Joel Portillo Hardscape allowing water infiltration, reducing runoff. Read more
Polyiso board November 21, 2025 Joel Portillo High R-value foam board used in roof and wall assemblies. Read more
R-value November 21, 2025 Joel Portillo Measurement of a material’s resistance to heat flow. Read more
Rainwater harvesting November 21, 2025 Joel Portillo Collecting rainwater for irrigation or other uses. Read more
Rapidly renewable materials November 21, 2025 Joel Portillo Materials such as bamboo growing quickly and sustainably. Read more
Reclaimed wood November 21, 2025 Joel Portillo Wood salvaged from older buildings for reuse. Read more