Westford Symposium

The Twenty-Eighth Westford Symposium on Building Science

The History of the Perfect Wall (Joseph Lstiburek, 2026 Westford Symposium)

Talk title: "The History of the Perfect Wall……" Joseph Lstiburek, known to symposium regulars simply as Joe, is the founder of Building Science Corporation and the host of the Westford Symposium on… Learn More

(Todd DeMonte at Westford Symposium Aug 2026)

  What can 24 indoor air quality sensors tell you about a single building? In this talk, I walk through a whole-building IAQ study measuring CO2, temperature, relative humidity, PM2.5, and VOCs… Learn More

(Stephanie Taylor, 2026 Westford Symposium)

  Stephanie Taylor, MD, MArch is the founder and CEO of Building4Health and an ASHRAE Distinguished Lecturer on indoor air quality and health. In this talk from the Westford Symposium, she… Learn More

The Sound of Sausage in Swollen Standard Casings (Nick Hurst, 2026 Westford Symposium)

Talk title: "The Sound of Sausage in Swollen Standard Casings" Nick Hurst is a carpenter-turned-building scientist, serial home remodeler, and musician who has worked on historic homes (including an… Learn More

Replacing a hydro-air boiler with an air-source heat pump (Bruce Harley, 2026 Westford Symposium)

Talk title: "Replacing a hydro-air boiler with an air-source heat pump" Bruce Harley is a building performance consultant known for his work on HVAC load calculations, heat pump retrofits, and… Learn More

Designing a Cold Temperature Heat Pump: Air Quality & Comfort (Ty Newell, 2026 Westford Symposium)

Talk title: "Designing a Cold Temperature Heat Pump for Air Quality and Comfort Management" Ty Newell designs and manufactures cold-climate heat pump ventilation equipment, including the CERV (… Learn More

Back to the Future: Hydronics & Heat Pumps (Galen Staengl, 2026 Westford Symposium)

  Talk title: "Back to the Future – Installing hydronics and air-to-water heat pumps to get fossil fuels out of buildings" Galen Staengl is a mechanical engineer whose career in renewable… Learn More

Clustering Stuff: Compact Mechanical Cores (Gary Klein, 2026 Westford Symposium)

  Talk title: "Clustering Stuff: The Many Benefits of Architecturally Compact Mechanical Infrastructure" Gary Klein is a hot water distribution and efficient plumbing systems expert who has… Learn More

Taking Passive Building to New Heights: Multifamily (Greta Tjeltveit, 2026 Westford Symposium)

Talk title: "Taking Passive Building to New Heights: Scaling from Single-Family Homes to Multifamily Housing" Greta Tjeltveit's career started as a single-family energy rater and has since grown… Learn More

Buildings Move, Buildings Leak: Engineering-Enclosure Link (Jon Porter, 2026 Westford Symposium)

Talk title: "Buildings Move, Buildings Leak: Revisiting the Critical Link Between Engineering Mechanics and Enclosure Performance" Jon Porter is a structural engineer whose work focuses on the… Learn More

Apartment Buildings: Retrofits, Systems & Connections (Chris Benedict, 2026 Westford Symposium)

Talk title: "Apartment Buildings: New Dissections, Interventions and Connections" Chris Benedict is a New York City architect known for her pioneering work on Passive House and deep energy retrofit… Learn More

Drain, Drain Go Away (John Straube, 2026 Westford Symposium)

Talk title: "Drain, Drain Go Away" John Straube is a professor in the Department of Civil and Environmental Engineering at the University of Waterloo, where his research focuses on building… Learn More

Are We There Yet? Indoor Air Quality Progress Report (Bill Bahnfleth, 2026 Westford Symposium)

Talk title: "Are We There Yet? A Brief Update on Progress Towards Better Indoor Environments for All" The Covid-19 pandemic got people talking about the need to improve indoor air quality and, more… Learn More

Going Tropical: Cooling & Ventilating in Zone 0A (Kimberly Llewellyn, 2026 Westford Symposium)

  Talk title: "Going Tropical- Building, Cooling and Ventilating in Climate Zone 0A" Kimberly Llewellyn is a humidity and HVAC forensics, training, and resiliency design consultant and co-… Learn More