Positive Energy
Design Around People. A Good Building Follows.

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Read more about a range of building science, engineering, and architecture topics on our company blog.

Posts tagged Building Science
Award-Winning Architecture with Alterstudio and Positive Energy
Award-Winning Architecture with Alterstudio and Positive Energy

The architectural landscape in Austin, Texas, has been profoundly shaped by a unique and enduring partnership between Alterstudio Architects, a firm celebrated for its deep commitment to the design process and exceptional residential projects, and Positive Energy, a pioneering residential MEP engineering and building science firm. This collaboration has consistently pushed the boundaries of conventional design and construction, resulting in stunning pieces of residential architecture that are not only aesthetically remarkable but also embody comfort, health, and inspiration.1 Their combined expertise has been instrumental in translating architectural vision into tangible, high-performance spaces.

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Architectural Design, Architecture 2030, Building Enclosure, Building Science, Dehumidification, Healthy Home, HVAC, Indoor Air Quality, Mechanical DesignPositive EnergyAlterstudio Architects, Positive Energy, Architectural Partnership, Residential MEP Engineering, Building Science, Integrated Design, Awards, Publications, Ernesto Cragnolino, HVAC Systems, Custom Residential Architecture, Thermal Performance, Solar Heat Gain, Structural Integrity, HVAC System Design, High-Performance Glazing, Air Sealing, Insulation, Highland Park Residence, West Campus Residence, Falcon Ledge Residence, Constant Springs Residence, Tumbleweed Residence, Tarrytown Residence, Building Envelope, Control Layers, Wetting and Drying, Airtightness, Indoor Air Quality (IAQ), Ventilation, Filtration, Humidity Control
Rethinking Moisture Control: The Primacy of Air Tightness Over an Outdated Fixation on Vapor Barriers in Building Envelope Design
Rethinking Moisture Control: The Primacy of Air Tightness Over an Outdated Fixation on Vapor Barriers in Building Envelope Design

For decades, the architecture and construction community has engaged in a persistent debate surrounding the role and necessity of vapor barriers in building envelope design. This discussion, while touching on critical aspects of moisture control, has often been characterized by an overemphasis on the ability of specific materials to resist vapor diffusion, sometimes to the detriment of addressing more significant moisture transport mechanisms. Within the building science community, however, the principles governing moisture movement are largely considered settled science. It is well-established that air leakage, rather than vapor diffusion, is the predominant pathway for moisture transport through most wall assemblies.

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Building EnclosurePositive EnergyVapor Barriers, Air Barriers, Building Envelope, Building Science, Moisture Management, Dehumidification, Durability, Resiliency, Air tightness, vapor barriers, moisture control, building envelope design, moisture transport mechanisms, air leakage, vapor diffusion, air barrier systems, historical context of vapor barriers, evolution of vapor barrier science, bulk water intrusion, capillary action, air-transported moisture, defining air barriers, defining vapor retarders, air permeance, water vapor permeance, dew point temperature, energy efficiency, indoor air quality, building durability, acoustic control, continuity of air barrier, dedicated dehumidification, climate-specific vapor control, reservoir claddings, solar-driven inward vapor drive, ventilated rainscreen, "smart" vapor retarders, moving forward with air tightness, recommendations for architecture and construction, building codes and standards, quality assurance/quality control
The Campsite at Shield Ranch
The Campsite at Shield Ranch

The Campsite at Shield Ranch was designed by our friends at Andersson / Wise. It is a 100% off-grid community designed to engage and celebrate the natural context of the ecologically diverse 6800-acre hill country sanctuary where it sits. The camp features an open-air pavilion, screened shelters, and miles of hiking trails just 22 miles from downtown Austin. Positive Energy was hired to perform MEP engineering, solar design and engineering, and Resilient Systems consulting. The Resilient Systems we master planned for the program include a 64kW architecturally integrated solar array, a 200kWh (100kW peak power capacity) backup battery array, a 60kW emergency propane genset, and we consulted with another rainwater system engineer a couple of 60k gallon rainwater collection tanks for occupancy use with TECQ compliant filtration for public consumption (as well as necessary rainwater storage for fire suppression).

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Architectural Design, Building Enclosure, Building Science, Electrification, Environmental Design, HVAC, Mechanical Design, Natural Building Material, Off-grid, Solar, Batteries, GeneratorPositive EnergyShield Ranch, Off-Grid Campsite, Sustainable Development, Microgrid, Solar PV System, Battery Energy Storage System (BESS), Propane Generator, Rainwater Harvesting, Water Conservation, Evaporative Toilets, Wastewater Management, SITES Gold Certification, Conservation Easements, Barton Creek Watershed, Ecological Protection, Vegetation and Soil Protection Zones, Topsoil Reuse, Native Plant Restoration, Light Pollution, Dark Sky Designation, Quiet Place Designation, Climate Change Resilience, MEP Engineering, On-Site Power Engineer, Building Science, Human-Centered Design, Energy Systems Consulting, Solar Design, Battery Array Design, Generator Integration, Regulatory Breakthroughs, Texas Commission on Environmental Quality (TCEQ), Travis County, Off-Grid Living, Resilient Spaces, Self-Sufficiency, Integrated Design, Collaborative Engineering.