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{{for|other types of snow barrier devices| |
{{for|other types of snow barrier devices|Snow barrier (disambiguation)}} |
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{{More citations needed|date=October 2021}} |
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[[File:PP503.jpg|alt=|thumb|Three-pipe Snow Fence System]] |
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[[File:Standing seam roof.jpg|thumb|[[metal roof#Standing seam metal roof|Standing seam metal roof]] with Snow guards to keep snow from sliding off the roof too quickly]] |
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| ⚫ | A '''snow guard''' is a device used to retain [[snow]] and [[ice]] from falling from one surface to a lower one; in contemporary usage, they are installed to prevent snow/ice pack from avalanching and damaging people, plants, and property below. They are most commonly installed in multiples or rows on a structure's [[roof]] surface, as a form of [[avalanche control]]. Snow guards are installed with a specific quantity and pattern based on the shape, size and pitch of the roof to provide the most uniform system of retention possible. Snow guards are not fully intended to completely hold back the snow as this would cause major leak issues when the snow melts. They are however built to separate the snow to allow it to break apart into smaller pieces/sections so that, if they do fall in rising temperatures and thawing conditions, the likelihood of having someone injured by the falling pile of snow is minimized. |
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| ⚫ | Variants of snow guards have been used for over 300 years all around the world where seasonal snowfall is common.<ref name=Hjorth-Hansen>{{cite book|last=Hjorth-Hansen|first=Erik|title=Snow Engineering : Recent Advances and Developments|year=2000|publisher=Proceedings of the Fourth International Conference on Snow Engineering|location=Trondheim, Norway|pages=332|isbn=9789058091482|url=https://books.google.com/books?id=EjGsPSoYHOIC&q=stones+and+logs+on+roofs+scandinavia+snow+insulation&pg=PA332}}</ref> In addition to roofs, other larger natural or man-made objects and structures have also been used as snow guards (also known as [[snow fence]]s) on steep sloping hills to lessen the effects of avalanches in valley regions. |
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[[File:Rocky Mountain Snow Guards, Snow Guards on DaVinci Synthetic Slate Roof.jpg|thumb|Rocky Mountain Snow Guards in Copper on DaVinci Sythetic Slate Roof]] |
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| ⚫ | Modern snow guards are made of polycarbonate and/or metals, depending on the type, size, and specific function of the guard. Although primarily installed for functional purposes, panel guards and snow railing are sometimes used to highlight a roof's aesthetic appeal and design. A variety of modern manufacturers have designed metal powder-coated guards that can match the colors of varying roof types, and snow rails are commonly colored to complement the roofs they protect. In addition, many manufacturers have developed snow guards and systems for metal roofs.<ref name="Metal Roofs and Snow Guards">{{cite web|last=Snow Guard|title=Snow guards and metal roofs 101|date=23 November 2015 |url=https://www.constructioncanada.net/snow-guards-and-metal-roofs-101/4/}}</ref> |
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| ⚫ | A '''snow guard''' is a device used to retain [[snow]] and [[ice]] from falling from one surface to a lower one; in contemporary usage, they are installed to prevent snow/ice pack from avalanching and damaging people, plants, and property below. They are most commonly installed in multiples or rows on a structure's [[roof]] surface, as a form of [[avalanche control]]. Snow |
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| ⚫ | Variants of snow guards have been used for over 300 years all around the world where seasonal snowfall is common |
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In 1976 Jack McMullen invented the very first clear, polycarbonate '''snow guard'''. Then in 1979 a U.S. patent for the first clear plastic injection molded “corrosion proof snow guard” was granted.<ref name="Snow Guard">{{cite web|last=Snow Guard|title=Plastic Snow Guards|url=http://snoblox-snojax.com/index.php?l=page_view&p=about_us |work=SnoBlox/SnoJax Website|accessdate=1 April 2014}}</ref> |
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| ⚫ | Modern snow guards are made of polycarbonate and/or metals, depending on the type, size, and specific function of the guard. Although primarily installed for functional purposes, panel guards and snow railing are sometimes used to highlight a roof's aesthetic appeal and design. A variety of modern manufacturers have designed metal powder-coated guards that can match the colors of varying roof types, and snow rails are commonly colored to |
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Snow guards are not the same as heat tape or [[trace heating]] systems used to melt snow faster, but these products can be and are commonly used together to offer better protection from sliding snow problems. [[Architects]], contractors, and [[roofers]] are becoming increasingly aware of the importance and benefits of snow guards in the design process, minimizing the liability of falling snow for homeowners, businesses, and building owners.<ref name="Metal Roof">{{cite web|last=Snow Guards|title=Metal Roof Snow Guards|url=http://www.metalroofsnowguards.com/Snow-Guards_ep_35.html|work=Metal Roof Snow Guards|accessdate=8 February 2013}}</ref> |
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[[File:Copper Armor Panel Guard & Snow.jpg|thumb|Copper Armor Panel Guard demonstrating snow retention on a copper roof.]] |
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[[File:TRA Snow & Sun - Snow Bracket™ D - Apex on CeDUR Simulated Wood Shake Roof.jpg|thumb|TRA Snow & Sun - Snow Bracket™ D - Apex on CeDUR Simulated Wood Shake Roof.]] |
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==Other names== |
==Other names== |
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{{Unreferenced section|date=October 2021}} |
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Other commonly used names and terms for snow guards include: |
Other commonly used names and terms for snow guards include: |
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*Snow bracket |
*Snow bracket |
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*Snow brake |
*Snow brake |
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*Snow dogs |
*Snow dogs |
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*Snow guard bracket |
*Snow guard bracket |
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==See also== |
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* [[Ice dam (roof)]] |
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==References== |
==References== |
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{{reflist}} |
{{reflist}} |
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<ref>{{cite web|last1=Ciosek|first1=Jolene|title=The History of Rooftop Snow Management, Alpine SnowGuards|url=https://www.linkedin.com/pulse/history-rooftop-snow-management-jolene-ciosek/}}</ref> |
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[[Category:Snow]] |
[[Category:Snow]] |
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[[Category:Roofs]] |
[[Category:Roofs]] |
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Latest revision as of 03:46, 11 January 2024
 | This article needs additional citations for verification. (October 2021) |
A snow guard is a device used to retain snow and ice from falling from one surface to a lower one; in contemporary usage, they are installed to prevent snow/ice pack from avalanching and damaging people, plants, and property below. They are most commonly installed in multiples or rows on a structure's roof surface, as a form of avalanche control. Snow guards are installed with a specific quantity and pattern based on the shape, size and pitch of the roof to provide the most uniform system of retention possible. Snow guards are not fully intended to completely hold back the snow as this would cause major leak issues when the snow melts. They are however built to separate the snow to allow it to break apart into smaller pieces/sections so that, if they do fall in rising temperatures and thawing conditions, the likelihood of having someone injured by the falling pile of snow is minimized.
Variants of snow guards have been used for over 300 years all around the world where seasonal snowfall is common.[1] In addition to roofs, other larger natural or man-made objects and structures have also been used as snow guards (also known as snow fences) on steep sloping hills to lessen the effects of avalanches in valley regions.
Modern snow guards are made of polycarbonate and/or metals, depending on the type, size, and specific function of the guard. Although primarily installed for functional purposes, panel guards and snow railing are sometimes used to highlight a roof's aesthetic appeal and design. A variety of modern manufacturers have designed metal powder-coated guards that can match the colors of varying roof types, and snow rails are commonly colored to complement the roofs they protect. In addition, many manufacturers have developed snow guards and systems for metal roofs.[2]
Other names
[edit] |
Other commonly used names and terms for snow guards include:
- Snow bracket
- Snow brake
- Snow stop
- Snow shields
- Snow clip
- Ice guard
- Snow fence (non-highway type)
- Snow rail
- Snow pads
- Snow dogs
- Snow guard bracket
See also
[edit]References
[edit]- ^ Hjorth-Hansen, Erik (2000). Snow Engineering : Recent Advances and Developments. Trondheim, Norway: Proceedings of the Fourth International Conference on Snow Engineering. p. 332. ISBN 9789058091482.
- ^ Snow Guard (23 November 2015). "Snow guards and metal roofs 101".