{{short description|Raised structure running along the ridge of a double-pitched roof}} thumb|right|An example of a monitor roof. These roofs may extend the length of the building. [[File:Walla Walla, WA - Whitehouse-Crawford Building ridge skylight 02.jpg|thumb|Monitor on the Whitehouse-Crawford Planing Mill in Walla Walla, Washington, U.S.]] A '''monitor''' in architecture is a raised structure running along the ridge of a double-pitched roof, with its own roof running parallel with the main roof. The long sides of monitors usually contain clerestory windows or louvers to light or ventilate the area under the roof.<ref name=ching1>{{cite book|last=Ching|first=Francis D.K.|title=A Visual Dictionary of Architecture|year=2012|publisher=John Wiley & Sons, Inc.|isbn=978-0-470-64885-8|edition=2nd|page=217}}</ref> A monitor roof looks like the roof of a traditional sugar house (building for boiling down maple syrup) but the purpose of the sugar house roof is to vent steam. Historically, some railroad passenger cars had monitor roofs.<ref name="oda496">{{cite book |last1=Curl |first1=James Stevens |last2=Wilson |first2=Susan |title=Oxford Dictionary of Architecture |date=2016 |publisher=Oxford University Press |isbn=978-0-19-967499-2 |page=496}}</ref> [[File:Benckiser_Maschinenhalle.jpg|thumb|Roof of the historic Benckider factory in Pforzheim ]] ==See also== * Roof lantern * Säteri roof
==References== {{Commons category|Monitor (architecture)}} {{reflist}}
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Category:Roofs
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