Passive House Design And Build – 1. The need for thermal energy must not exceed 15 kilowatts per square meter of net residential area (cultivated area) per year, or a maximum demand of 10 watts per square meter per year.
In climates requiring active cooling, space cooling energy requirements should approximate the heat requirements above, with additional consideration for dehumidification.
Passive House Design And Build
2. Primary energy requirements from renewable sources (PER, according to the PHI method), the total energy used by all domestic applications (heating, hot water and domestic electricity) per year should not exceed 60 kWh per square meter of treated floor area. E stands for House Classic. .
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3. In terms of air tightness, the maximum air exchange rate is 0.6 times per hour under a pressure of 50 Pascals (ACH50), which is confirmed by on-site pressure testing (pressurization and decompression).
4. All residential areas must meet thermal comfort in winter and summer, with temperatures above 25°C not exceeding 10% of the year. For a full overview of general quality requirements (soft criteria), see Pacipedia.
All of the above criteria have been achieved through intelligent design and the implementation of the principles of the Fifth House: design without a thermal bridge, quality windows, heat recovery ventilation, quality insulation and airtight construction.
All opaque building elements of the house envelope must have good thermal insulation properties. For most cold temperate climates this means a maximum heat transfer coefficient (U-value) of 0.15 W/(m²K) or a maximum loss of 0.15 W per degree of temperature difference and per square meter of external surface.
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Window frames must be well insulated and contain low-e glass filled with argon or krypton gas to prevent heat transfer. For most cool temperate climates, this means a U-value of 0.80 W/(m²K) or less and a g-value of about 50% (g-value = total solar transmission, the ratio of solar energy available to the house).
Efficient heat recovery ventilation is key, improving indoor air quality and saving energy. In the E House, at least 75% of the exhaust heat is transferred back to fresh air via a heat exchanger.
Uncontrolled leakage through voids must be less than 0.6 of the total room volume per hour during the 50 Pascal pressure test (pressurized and depressurized).
All edges, corners, connections and penetrations must be planned and executed with great care to avoid thermal bridges. Unavoidable thermal bridges should be minimized. Located in a beautiful community on the New England coast, this private vacation and vacation home packs high functionality and efficient use of space into a small package.
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The clients wanted a two-bedroom, two-bathroom home that would be just right for their family—no more, no less. They also aim to reduce energy consumption in the home.
Passive house. A stylish, simple gable roof construction was designed and proposed to Passive House standards, a building performance standard that creates an extremely low energy home. The combination of superior insulation, air sealing, high performance windows and solar gain reduces the space conditioning requirements of a portion of a typical home and uses only a very small heating system. Customers whose extended families had large, liquid and energy-inefficient homes immediately adopted Passive House standards to save energy and increase comfort. They were looking forward to a draft free place during the winter and a very constant temperature throughout the house.
Aesthetic The gable shape of the house was planned as a defining aesthetic feature. Its iconic shape and playful red color flow from the eastern exterior red gable through the interior kitchen wall to the seating area and the opposite western exterior gable. Internally, a clean and fresh look was achieved through minimal decoration, simple polished concrete floors and careful selection of glass.
Floor plan. The layout is designed around the customer’s intended use. The bedrooms are located at opposite ends of the house, receiving morning or afternoon light. The open floor plan of the living and dining area has a dining nook that juts out from the south side of the space. Since family and friends often visit, this nook is large enough to accommodate the family and all their guests. And customers have expressed their love for bathing. To solve this problem, we installed a separate room with a sun-filled bathtub in the southeast corner of the home near the master bathroom.
The Passive House: Sealed For Freshness
Despite the small footprint, the home meets all of the client’s needs through efficient space planning with storage space and loft space above. Accessible via a ladder, the loft provides children with their own private space to spend time away from the adults.
Performance. Many south-facing windows maximize solar heat gain in winter, with a polished concrete floor used to absorb heat and re-radiate it into the space. North-facing high-performance glass doors offer views of the agricultural landscape, seamlessly connecting the interior living spaces with the outdoor courtyard.
The home’s high R-value, including true R-40 walls, R-50 floors, R-60 roof, U-value: 0.13 windows and superior air sealing means only one-tenth the energy needed for heating. Compared to the requirements of a conventionally built house. In addition to a very small heating system, the house is equipped with heat recovery fans to maintain good indoor air quality with minimal energy consumption. Expert advice from Bob Villa, the most trusted name in home improvement, home remodeling, home repair and DIY. Tried, true, trusted home advice
Passive House Design: All energy-conscious homeowners should know that the benefits of passive house design are numerous, from significantly reduced energy consumption to healthier indoor air quality to cutting-edge technology.
Passive House Plus (sustainable Building) Issue 42 Irl By Passive House Plus (sustainable Building)
Climate change is already changing the way people live. As hurricanes, wildfires, heat waves and floods become more intense, homeowners face more frequent power outages and rising energy costs. Additionally, according to the US Department of Energy, residential buildings account for more than 20% of the country’s energy consumption and emit approximately 8.7 tons of carbon dioxide per household per year. As concerns about service disruptions, financial impacts and sustainable solutions grow, so does the need for more efficient and resilient homes.
While many people are taking steps to reduce their home carbon footprint by minimizing energy and water use with greener appliances and air conditioning equipment, others are exploring off-grid living, earthship homes and passive house design.
Read on to learn more about passive house design and how it effectively aligns with home energy efficiency.
The Passive House (German “Passivhaus”) is a design standard that takes a holistic approach to providing healthy, comfortable and efficient homes. Basically, these homes can heat and cool themselves, reducing energy bills by about 90 percent. Homeowners often report that they don’t have to turn on the heating in the winter due to passive house design.
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This passive strategy does not rely on solar or wind energy; Instead, these homes use almost zero energy through incredible air tightness and insulation. Builders do this by insulating and sealing the entire home envelope, installing high efficiency windows and doors, choosing heat recovery ventilation systems (eg using waste heat from clothes dryers, etc.) and eliminating thermal bridges (localized areas of a building) little). The heat flow has a different envelope from neighboring areas).
Although many people believe that Passive House design originated in Germany, the Passive House movement actually began in the United States and Canada in the 1970s, after the 1973 oil embargo caused energy prices to rise. This inspired a group of engineers and architects to design a highly insulated house in 1976 that consumes 60% less energy than any other building. In 1981, the American physicist William Shrewscliffe first used the term “Passive House” in his book “The Saunders-Shrewsbury House”. However, by then the United States had abandoned the energy conservation movement and Germany had taken over.
In the 1990s, German physicist Wolfgang Feist updated the Passive House design for greater efficiency, created the Passive House, and founded the Passive House Institute (PHI) to develop Passive House performance standards—considered the most stringent of standards for energy efficiency. In 2003, the Passive House Institute of the USA (PHIUS) was founded. Finally, PHIUS released the PHIUS+ standard in 2015, which takes into account cost-effectiveness and climate-specific performance standards.
A well-established set of Passive House principles guides the design process. These principles apply to all building types, including single-family homes and multi-family residential buildings, outlining how to achieve high standards of energy efficiency while balancing comfort. Principles include thermal control, air control, radiation control, and humidity control.
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Thermal control involves keeping the inside warm when it’s cold outside and cool when it’s hot outside. One way to achieve this is with a high-performance envelope that incorporates continuous insulation throughout the building to reduce heating and cooling requirements.
Additionally, thermal control includes installing well-insulated windows that qualify as passive house windows
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