A weatherized building is protected from the outside elements in order to maximize energy efficiency.
Weatherization is distinct from building insulation, although building insulation requires weatherization for proper functioning. Many types of insulation can be thought of as weatherization, because they block drafts or protect from cold winds. Whereas insulation primarily reduces conductive heat flow, weatherization primarily reduces convective heat flow.
In the United States, buildings use one third of all energy consumed and two thirds of all electricity. Due to the high energy usage, they are a major source of the pollution that causes urban air quality problems and pollutants that contribute to climate change. Building energy usage accounts for 49 percent of sulfur dioxide emissions, 25 percent of nitrous oxide emissions, and 10 percent of particulate emissions.[1]
Sealing bypasses (cracks, gaps, holes), especially around doors, windows, pipes and wiring that penetrate the ceiling and floor, and other areas with high potential for heat loss, using caulk, foam sealant, weather-stripping, window film, door sweeps, electrical receptacle gaskets, and so on to reduce infiltration.[2]
Sealing recessed lighting fixtures ('can lights' or 'high-hats'), which leak large amounts of air into unconditioned attic space.
Sealing air ducts, which can account for 20% of heat loss, using fiber-reinforced mastic (not duck/duct tape, which is not suitable for this purpose)
Installing/replacing dampers in exhaust ducts, to prevent outside air from entering the house when the exhaust fan or clothes dryer is not in use.
Protecting pipes from corrosion and freezing.
Installing footing drains, foundation waterproofing membranes, interior perimeter drains, sump pump, gutters, downspout extensions, downward-sloping grading, French drains, swales, and other techniques to protect a building from both surface water and ground water.
Providing proper ventilation to unconditioned spaces to protect a building from the effects of condensation. See Ventilation issues in houses
Replacing old drafty doors with tightly sealing, foam-core doors.
Retrofitting older windows with a stop or parting bead across the sill where it meets the sash.[3]
Replacing older windows with low-energy, double-glazed windows.
The phrase "whole-house weatherization" extends the traditional definition of weatherization to include installation of modern, energy-saving heating and cooling equipment, or repair of old, inefficient equipment (furnaces, boilers, water heaters, programmable thermostats, air conditioners, and so on). The "Whole-House" approach also looks at how the house performs as a system.[4]
Air quality
Weatherization generally does not cause indoor air problems by adding new pollutants to the air. (There are a few exceptions, such as caulking, that can sometimes emit pollutants.) However, measures such as installing storm windows, weather stripping, caulking, and blown-in wall insulation can reduce the amount of outdoor air infiltrating into a home. Consequently, after weatherization, concentrations of indoor air pollutants from sources inside the home can increase.[5]
Weatherization can have a negative impact on indoor air quality, especially among occupants with respiratory illnesses.[5] This occurs because of a decrease in air exchange in the home, and resulting increase in moisture. This leads to higher concentrations of pollutants in the air.
Weatherization has become increasingly high-profile as the cost of home heating has risen. The US Weatherization Assistance Program (WAP) was created within the US Department of Energy in 1976 to help low-income families reduce energy consumption and costs across all fifty states, the District of Columbia, including Native American tribes.[6]
The American Council for an Energy-Efficient Economy estimates that up to February 2018[update] over 7 million homes have been weatherized, giving yearly savings of 2.6 TWh of electricity, 7.9 TWh (27×10^12Btu) of fossil gas and 3.2 million metric tons (3.5 million short tons) of reduced carbon dioxide emissions.[7] The US Department of Energy estimates weatherization returns $2.69 for each dollar spent on the program, realized in energy and non-energy benefits. Families whose homes are weatherized are expected to save $358 on their first year's utility bills.[citation needed]
^"Door Sweeps". www.thebuilderssupply.com. Retrieved April 16, 2013.
^Adding such a stop was shown in field studies to improve a window's performance to meet International Energy Conservation Code (IECC) 2012 air infiltration standards. Source: Window Preservation Standards Collaborative, "Window Preservation Standards," (WPSC, 2013), p. 84-96.
^"Weatherization Services". EERE. Retrieved August 2, 2002.
^ ab"An Introduction to Indoor Air Quality (IAQ) Identifying problems in the indoor environments". EPA. Retrieved March 11, 2010.
^"Weatherization Assistance Program". US Department of Energy. Retrieved March 11, 2009.
^"Savings from Weatherization Assistance Program" (PDF). aceee.org. February 2018. Retrieved November 26, 2019.
weatherization, this, article, multiple, issues, please, help, improve, discuss, these, issues, talk, page, learn, when, remove, these, template, messages, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding,. This article has multiple issues Please help improve it or discuss these issues on the talk page Learn how and when to remove these template messages This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Weatherization news newspapers books scholar JSTOR August 2009 Learn how and when to remove this template message The examples and perspective in this article may not represent a worldwide view of the subject You may improve this article discuss the issue on the talk page or create a new article as appropriate December 2010 Learn how and when to remove this template message Learn how and when to remove this template message Weatherization American English or weatherproofing British English is the practice of protecting a building and its interior from the elements particularly from sunlight precipitation and wind and of modifying a building to reduce energy consumption and optimize energy efficiency A weatherized building is protected from the outside elements in order to maximize energy efficiency Weatherization is distinct from building insulation although building insulation requires weatherization for proper functioning Many types of insulation can be thought of as weatherization because they block drafts or protect from cold winds Whereas insulation primarily reduces conductive heat flow weatherization primarily reduces convective heat flow In the United States buildings use one third of all energy consumed and two thirds of all electricity Due to the high energy usage they are a major source of the pollution that causes urban air quality problems and pollutants that contribute to climate change Building energy usage accounts for 49 percent of sulfur dioxide emissions 25 percent of nitrous oxide emissions and 10 percent of particulate emissions 1 Contents 1 Procedures 2 Air quality 3 US Weatherization Assistance Program 4 See also 5 References 6 External linksProcedures EditTypical weatherization procedures include Sealing bypasses cracks gaps holes especially around doors windows pipes and wiring that penetrate the ceiling and floor and other areas with high potential for heat loss using caulk foam sealant weather stripping window film door sweeps electrical receptacle gaskets and so on to reduce infiltration 2 Sealing recessed lighting fixtures can lights or high hats which leak large amounts of air into unconditioned attic space Sealing air ducts which can account for 20 of heat loss using fiber reinforced mastic not duck duct tape which is not suitable for this purpose Installing replacing dampers in exhaust ducts to prevent outside air from entering the house when the exhaust fan or clothes dryer is not in use Protecting pipes from corrosion and freezing Installing footing drains foundation waterproofing membranes interior perimeter drains sump pump gutters downspout extensions downward sloping grading French drains swales and other techniques to protect a building from both surface water and ground water Providing proper ventilation to unconditioned spaces to protect a building from the effects of condensation See Ventilation issues in houses Installing roofing building wrap siding flashing skylights or solar tubes and making sure they are in good condition on an existing building Installing insulation in walls floors and ceilings around ducts and pipes around water heaters and near the foundation and sill Installing storm doors and storm windows Replacing old drafty doors with tightly sealing foam core doors Retrofitting older windows with a stop or parting bead across the sill where it meets the sash 3 Replacing older windows with low energy double glazed windows The phrase whole house weatherization extends the traditional definition of weatherization to include installation of modern energy saving heating and cooling equipment or repair of old inefficient equipment furnaces boilers water heaters programmable thermostats air conditioners and so on The Whole House approach also looks at how the house performs as a system 4 Air quality EditWeatherization generally does not cause indoor air problems by adding new pollutants to the air There are a few exceptions such as caulking that can sometimes emit pollutants However measures such as installing storm windows weather stripping caulking and blown in wall insulation can reduce the amount of outdoor air infiltrating into a home Consequently after weatherization concentrations of indoor air pollutants from sources inside the home can increase 5 Weatherization can have a negative impact on indoor air quality especially among occupants with respiratory illnesses 5 This occurs because of a decrease in air exchange in the home and resulting increase in moisture This leads to higher concentrations of pollutants in the air US Weatherization Assistance Program EditSee also Weatherization Assistance Program Weatherization has become increasingly high profile as the cost of home heating has risen The US Weatherization Assistance Program WAP was created within the US Department of Energy in 1976 to help low income families reduce energy consumption and costs across all fifty states the District of Columbia including Native American tribes 6 The American Council for an Energy Efficient Economy estimates that up to February 2018 update over 7 million homes have been weatherized giving yearly savings of 2 6 TWh of electricity 7 9 TWh 27 10 12 Btu of fossil gas and 3 2 million metric tons 3 5 million short tons of reduced carbon dioxide emissions 7 The US Department of Energy estimates weatherization returns 2 69 for each dollar spent on the program realized in energy and non energy benefits Families whose homes are weatherized are expected to save 358 on their first year s utility bills citation needed Low Income Home Energy Assistance Programs in many states work side by side with WAP to provide both immediate and long term solutions to energy poverty 8 See also EditBuilding envelope Building indoor environment Building performance Central heating Heating ventilation and air conditioning HVAC Low energy house Vapor barrier WikiBooks How to guide to WeatherizationReferences Edit Building Materials Arizona State University 2006 Retrieved March 2 2008 Door Sweeps www thebuilderssupply com Retrieved April 16 2013 Adding such a stop was shown in field studies to improve a window s performance to meet International Energy Conservation Code IECC 2012 air infiltration standards Source Window Preservation Standards Collaborative Window Preservation Standards WPSC 2013 p 84 96 Weatherization Services EERE Retrieved August 2 2002 a b An Introduction to Indoor Air Quality IAQ Identifying problems in the indoor environments EPA Retrieved March 11 2010 Weatherization Assistance Program US Department of Energy Retrieved March 11 2009 Savings from Weatherization Assistance Program PDF aceee org February 2018 Retrieved November 26 2019 How to Apply for Weatherization Assistance External links Edit Wikibooks has more on the topic of Weatherization Houston Advanced Research Center The Weatherization Assistance Program WAP Technical Assistance Center WAPTAC The WAP System for Identifying and Reviewing New Technologies and Techniques Weatherization Information Portal Home Energy Weatherization Articles https www rhinoshieldwis com http rhinoshieldjax com Retrieved from https en wikipedia org w index php title Weatherization amp oldid 1071182921, wikipedia, wiki, book, books, library,
