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Saskatchewan Conservation House
The Saskatchewan Conservation House (211 Rink Ave, Regina, Saskatchewan, Canada) is an early exemplar of energy-efficient building construction that introduced best practices for addressing air leakage in houses. It was designed in response to the 1970s energy crisis, energy crisis of the 1970s at the request of the Government of Saskatchewan. The Saskatchewan Conservation House pioneered the use of superinsulation and airtightness in Passive house, passive design and included one of the earliest Heat recovery ventilation, heat recovery systems. The house did not require a furnace, despite prairie winter temperatures as low as at night. In 1977, when it was built at 211 Rink Avenue in the Regina Walsh Acres, Walsh Acres neighborhood of Regina, Saskatchewan, Canada, the house was the world's most airtight house. The cost of the electricity to heat the house was estimated as $30–40 for a year. The house's building envelope continues to perform as designed, more than 40 years later. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1970s Energy Crisis
The 1970s energy crisis occurred when the Western world, particularly the United States, Canada, Western Europe, Australia, and New Zealand, faced substantial petroleum shortages as well as elevated prices. The two worst crises of this period were the 1973 oil crisis and the 1979 energy crisis, when, respectively, the Yom Kippur War and the Iranian Revolution triggered interruptions in Middle Eastern oil exports. The crisis began to unfold as petroleum production in the United States and some other parts of the world peaked in the late 1960s and early 1970s. World oil production per capita began a long-term decline after 1979. The oil crises prompted the first shift towards energy-saving (in particular, fossil fuel-saving) technologies. The major industrial centers of the world were forced to contend with escalating issues related to petroleum supply. Western countries relied on the resources of countries in the Middle East and other parts of the world. The crisis led to stagnan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infiltration (HVAC)
Infiltration is the unintentional or accidental introduction of outside air into a building, typically through cracks in the building envelope and through use of doors for passage. Infiltration is sometimes called air leakage. The leakage of room air out of a building, intentionally or not, is called exfiltration. Infiltration is caused by wind, negative pressurization of the building, and by air buoyancy forces known commonly as the stack effect. Infiltration measures The infiltration rate is the volumetric flow rate of outside air into a building, typically in cubic feet per minute (CFM) or liters per second (LPS). The air exchange rate, (''I''), is the number of interior volume air changes that occur per hour, and has units of 1/h. The air exchange rate is also known as air changes per hour (''ACH''). ACH is the hourly ventilation rate, divided by the building volume. It can be calculated by multiplying the building's CFM by 60, and then dividing by the building volume. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R-2000 Program
R-2000 is a Natural Resources Canada (NRCan) program that was developed in partnership with the Canadian Home Builders' Association in 1981, and formalized as a standard in 1982. Notably, the R-2000 standard is a voluntary standard to exceed building code requirements for energy efficiency, indoor air quality, and environmental responsibility. The R-2000 program is managed by NRCan's Office of Energy Efficiency and comprises: * R-2000 standard - technical specifications * quality assurance * certification * training and licensing of builders and service providers * consumer information In May 2008, the CHBA published an internal discussion paper proposing changes to the R-2000 standard so it would remain at the forefront as the reference model that influences other programs or initiatives. See also * Canada Green Building Council * EnerGuide * Energy Star for New Homes References External links NRCan Office of Energy Efficiency: About R-2000Canadian Home Builders' Asso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Built Green
Built may refer to: * ''Built'' (TV series), an American reality television series that aired on the Style Network *''Built: the hidden stories behind our structures'', 2018 book by Roma Agrawal * Building See also * * * Built environment, man-made surroundings for human activity * Built-in (other) * ''Built to Last'', 1989 Grateful Dead album * Built to Spill, indie rock band * Built-up area, urban development * Built-up edge, in metalworking * Built-up gun A built-up gun is artillery with a specially reinforced barrel. An inner tube of metal stretches within its elastic limit under the pressure of confined powder gases to transmit stress (mechanics), stress to outer cylinders that are under tension. ..., construction technique for artillery barrels * Indie Built, defunct computer game developer * Stick-built, home constructed entirely or largely on-site {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LEED
Leadership in Energy and Environmental Design (LEED) is a Green building certification systems, green building certification program used worldwide. Developed by the non-profit U.S. Green Building Council (USGBC), it includes a set of rating systems for the design, construction, operation, and maintenance of green buildings, homes, and neighborhoods, which aims to help building owners and operators be environmentally responsible and use resources efficiently. there were over 195,000 LEED-certified buildings and over 205,000 LEED-accredited professionals in 186 countries worldwide. In the US, the District of Columbia consistently leads in LEED-certified square footage per capita, followed in 2022 by the top-ranking states of Massachusetts, Illinois, New York, California, and Maryland. Outside the United States, the top-ranking countries for 2022 were Mainland China, India, Canada, Brazil, and Sweden. LEED Canada has developed a separate rating system adapted to the Canadian c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Building Initiative
The Green Building Initiative (GBI) is a 501(c)(3) nonprofit organization that owns and administers the Green Globes green building assessment and certification in the United States and Canada. It was established in 2004 and is headquartered in Portland, Oregon. History GBI acquired the U.S. rights to the Green Globes building assessment and certification program in 2004 and adapted it for the U.S. market as an alternative to the commercial building rating system. The Green Globes certification program was launched in the U.S. in 2005 as an online building design management tool for architects and builders of sustainable commercial buildings. Green Globes originated from a system started in 1990 in the United Kingdom called BREEAM (Building Research Establishment Environmental Assessment Method). In an effort to make the tool more user-friendly, the standard was turned into a questionnaire-based rating tool. It was later converted to a web-based format, renamed Green Globes and mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian Home Builders' Association
The Canadian Home Builders' Association (CHBA) is a not-for-profit organization representing residential construction and related industry firms in Canada. It was founded in 1943, following closely the adoption of the National Building Code of Canada in 1941, and today claims a membership of over 9000. The organization represents member interests to local, provincial and federal governments, and develops positions and solutions to support technical currency and solution pathways for members. Member companies include home builders and renovators, land developers, trade contractors, product and material manufacturers, building product suppliers, lending institutions, insurance providers, and service professionals. CHBA provides information to new home buyers and home owners to understand processes, planning and regulations surrounding home ownership. CHBA is a resource for locating contractors for new builds or renovations, and working through safety standards, insurance and warranty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Resources Canada
Natural Resources Canada (NRCan; ; )Natural Resources Canada is the applied title under the Federal Identity Program; the legal title is Department of Natural Resources (). is the department of the Government of Canada responsible for natural resources, energy, minerals and metals, forests, earth sciences, mapping, and remote sensing. It was formed in 1994 by amalgamating the Department of Energy, Mines and Resources with the Department of Forestry. Under the ''Constitution Act, 1867'', primary responsibility for natural resources falls to provincial governments, however, the federal government has jurisdiction over off-shore resources, trade and commerce in natural resources, statistics, international relations, and boundaries. The department administers federal legislation relating to natural resources, including energy, forests, minerals and metals. The department also collaborates with American and Mexican government scientists, along with the Commission for Environmental ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low-energy House
A low-energy house is characterized by an energy-efficient design and technical features which enable it to provide high living standards and comfort with low energy consumption and carbon emissions. Traditional heating and active cooling systems are absent, or their use is secondary. Low-energy buildings may be viewed as examples of sustainable architecture. Low-energy houses often have Active solar heating, active and passive solar building design and components, which reduce the house's energy consumption and minimally impact the resident's lifestyle. Throughout the world, companies and non-profit organizations provide guidelines and issue certifications to guarantee the energy performance of buildings and their processes and materials. Certifications include passive house, BBC—Bâtiment Basse Consommation—Effinergie (France), zero-carbon house (UK), and Minergie (Switzerland). Buildings alone were responsible for 38% of all human Greenhouse gas emissions (GHG) as of 2008, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Changes Per Hour
Air changes per hour, abbreviated ACPH or ACH, or air change rate is the number of times that the total air volume in a room or space is completely removed and replaced in an hour. If the air in the space is either uniform or perfectly mixed, air changes per hour is a measure of how many times the air within a defined space is replaced each hour. Perfectly mixed air refers to a theoretical condition where supply air is instantly and uniformly mixed with the air already present in a space, so that conditions such as age of air and concentration of pollutants are spatially uniform. In many air distribution arrangements, air is neither uniform nor perfectly mixed. The actual percentage of an enclosure's air which is exchanged in a period depends on the airflow efficiency of the enclosure and the methods used to ventilate it. These systems range from a conceptual system of perfect displacement, which removes and replaces all air in a space, to a short circuit flow in which very little o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blower Door
A blower door is a machine used to perform a building air leakage test. It can also be used to measure airflow between building zones, to test ductwork airtightness and to help physically locate air leakage sites in the building envelope. There are three primary components to a blower door: a calibrated, variable-speed Centrifugal fan, blower or Fan (machine), fan, capable of inducing a range of airflows sufficient to pressurize and depressurize a variety of building sizes; a pressure measurement instrument, called a manometer, to simultaneously measure the pressure differential induced across the face of the fan and across the building envelope, as a result of fan airflow; and a mounting system, used to mount the fan in a building opening, such as a door or a window. Airtightness testing is usually thought of in residential settings. It is becoming more common in commercial settings. The General Services Administration (GSA) requires testing of new US federal government buildi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vapor Barrier
A vapor barrier (or vapour barrier) is any material used for damp proofing, typically a plastic or foil sheet, that resists diffusion of moisture through the wall, floor, ceiling, or roof assemblies of buildings and of packaging to prevent interstitial condensation. Technically, many of these materials are only vapor retarders as they have varying degrees of Permeation, permeability. Materials have a moisture vapor transmission rate (MVTR) that is established by standard test methods. One common set of units is g/m2·day or g/100in2·day. Permeability can be reported in perm (unit), perms, a measure of the rate of transfer of water vapor through a material (1.0 US perm = 1.0 grain/square-foot·hour·inch of mercury ≈ 57 SI perm = 57 ng/s·m2·Pa). American building codes started classifying vapor retarders in the 2007 IRC supplement. They are Class I 570 SI perm) – such as unpainted gypsum board and plaster, unfaced fiber glass insul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
