A certified Passive House in Quebec, lived in by its architect: whether the embodied carbon of extra insulation outweighs the operational savings, assessed with the BEAM Estimator, and how the PHPP model compares with two years of measured use.
Electrifying domestic hot water without overdesign in New York, where it can dominate energy use in Passive House buildings: direct electric, heat pump, hybrid low-amp, and central or point-of-use options, with Sunamp's latent heat storage as a case study.
How centralized HRV and ERV systems work, why they outperform spot ventilation, and how to design, price, install, commission, and maintain them, using Brink systems as the reference, with advice on explaining their value to owners.
OPAL's Timothy Lock asks whether sustainability frameworks, Passive House among them, leave room for imaginative ecological design, and offers ways for practices to keep design adaptive, materially honest, and inventive.
HVAC system coefficient of performance (COP), an emerging metric for the efficiency of heat pumps and HRVs and ERVs, and how value engineering the ventilation in Passive House projects can undercut their energy goals.
A 1,700-square-foot rebuild after the Marshall Fire on a steep Colorado hillside, designed for wildfire risk, aging in place, and a guest suite, with a high-performance envelope, fire-resilient AAC walls, and utility rebates that made it possible.
Two Perkins&Will projects at opposite scales: the off-grid SoLo House, certified PHI Low Energy Building, and University of Victoria student housing and dining, fully certified with one of North America's largest Passive House commercial kitchens.
A practical guide to high-performance building enclosures without foam: why foam insulation is seen as hindering air, vapor, and thermal control, health, and sustainability goals, and how practitioners build without it.
A case study in Lafayette, Colorado: the design strategies, construction details, and mechanical approaches used to overcome the small-space penalty in pursuing Passive House certification for an accessory dwelling unit.
How Passive House principles and the District of Columbia's Energy Conservation and Green Construction Codes work together, with practical tools, workflows, and checklists for plan review, inspection, and construction.
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