A dormer is a roofed structure, often containing a window, that projects vertically beyond the plane of a pitched roof.[1] A dormer window (also called dormer) is a form of roof window.
Dormer window of the Building of Préfecture de police de Paris (île de la Cité)
Pair of hip roof dormer windows on the Howard Memorial Hall, Letchworth
Dormers are commonly used to increase the usable space in a loft and to create window openings in a roof plane.[2] A dormer is often one of the primary elements of a loft conversion. As a prominent element of many buildings, different types of dormer have evolved to complement different styles of architecture. When the structure appears on the spires of churches and cathedrals, it is usually referred to as a lucarne.
The word dormer is derived from the Middle Frenchdormeor, meaning "sleeping room",[3] as dormer windows often provided light and space to attic-level bedrooms.[2]
One of the earliest uses of dormers was in the form of lucarnes, slender dormers which provided ventilation to the spires of English Gothic churches and cathedrals. An early example are the lucarnes of the spire of Christ Church Cathedral, Oxford. Dormer windows have been used in domestic architecture in Britain since the 16th century.[4]
Dormer windows were popularised by French architect François Mansart, who used dormers extensively in the mansard roofs he designed for 17th-century Paris[citation needed]
Today dormers are a widespread feature of pitched roof buildings.[citation needed]
Also called simply a gabled dormer, this is the most common type.[5] It has a simple pitched roof of two sloping planes, supported by an outward face (any combination of glazed and unglazed materials). It thus includes a triangular section below the roofline, i.e. a gable. It is also known as a dog-house dormer (due to its similar shape).
Also called a hipped dormer,[6] it has a roof composed of three sloping planes that rise from each side of the dormer frame and converge at the ridge—analogous to the hip roof.
Flat roof dormer
The roof of this dormer is a single flat plane approximately horizontal (although usually slightly inclined to allow rain water to run off).
Shed dormer
This dormer also has a single flat plane roof, but in this case, it is sloped in the same direction as the principal roof, only at a shallower angle.[7] A shed dormer can provide head room over a larger area than a gabled dormer, but as its roof pitch is shallower than the main roof, it may require a different roof covering.
As opposed to the dormer being set part way up the slope of the roof, this is a dormer whose face is coplanar with (shares the horizontal position of) the face of the wall below. This means that the face of the dormer is essentially a continuation of the wall above the level of the eaves.
Eyebrow, or eyelid dormer
A low and wide dormer with a curved roof and no sides. Instead, the roof covering is gradually curved up and over the dormer in a flattened bell curve.[8]
Link dormer
This can be a dormer that houses a chimney or a dormer that joins one part of a roof to another.[9]
Bonneted dormer
An arched roof dormer, rounded in shape when viewed from front. Popular in Victorian homes, especially in certain areas, like the Southcott-style row-houses called Jellybean Row in St. John's, Newfoundland.
Nantucket dormer
A three-in-one dormer structure composed of two gable dormers connected by a shed dormer in between.[10]
In Vancouver, there are regulations for laneway houses stating the minimum setback of the face of the dormer from the wall below, with exceptions. This is to prevent overshadowing neighbouring yards. [14]
Popularity
Dormers are popular in Ulster,[15] and commonly used to create extra space when a loft is converted into a habitable room.[16]
^A Visual Dictionary of Architecture. Francis D.K. Ching
^Gitlin, Jane (2003). Capes: Design Ideas for Renovating, Remodeling, and Building New. Newtown, CT: Taunton. p. 44. ISBN9781561584369. dormer shed flat gable.
^ ab"Permitted Development Rights". Planning Portal website. Gov.uk. Retrieved 14 October 2013.
^(PDF). TCPA. October 2008. Archived from the original (PDF) on 24 September 2015. Retrieved 14 October 2013.
^City of Vancouver (2021-03-24). "Laneway Housing How-To Guide" (PDF). City of Vancouver. (PDF) from the original on 2020-09-27. Retrieved 2021-10-06.
^The Bedside Book of Dormers and Other Delights: A Pictorial Guide to Traditional Architectural Details in Ulster
^About Loft Conversions (2008). "Dormer Loft Conversion", About Loft Conversions.
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January 07, 2023
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For people named Dormer see Dormer surname A dormer is a roofed structure often containing a window that projects vertically beyond the plane of a pitched roof 1 A dormer window also called dormer is a form of roof window Dormer window of the Building of Prefecture de police de Paris ile de la Cite Gable dormers at Hospices de Beaune in Beaune France Pair of hip roof dormer windows on the Howard Memorial Hall Letchworth Dormers are commonly used to increase the usable space in a loft and to create window openings in a roof plane 2 A dormer is often one of the primary elements of a loft conversion As a prominent element of many buildings different types of dormer have evolved to complement different styles of architecture When the structure appears on the spires of churches and cathedrals it is usually referred to as a lucarne Contents 1 History 2 Types 3 Requirements for permission to construct 4 Popularity 5 See also 6 ReferencesHistory EditThe word dormer is derived from the Middle French dormeor meaning sleeping room 3 as dormer windows often provided light and space to attic level bedrooms 2 One of the earliest uses of dormers was in the form of lucarnes slender dormers which provided ventilation to the spires of English Gothic churches and cathedrals An early example are the lucarnes of the spire of Christ Church Cathedral Oxford Dormer windows have been used in domestic architecture in Britain since the 16th century 4 Dormer windows were popularised by French architect Francois Mansart who used dormers extensively in the mansard roofs he designed for 17th century Paris citation needed Today dormers are a widespread feature of pitched roof buildings citation needed Types EditThis section 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 Dormer news newspapers books scholar JSTOR July 2021 Learn how and when to remove this template message Some of the different types of dormer are Gable fronted dormer Also called simply a gabled dormer this is the most common type 5 It has a simple pitched roof of two sloping planes supported by an outward face any combination of glazed and unglazed materials It thus includes a triangular section below the roofline i e a gable It is also known as a dog house dormer due to its similar shape Hip roof dormer Also called a hipped dormer 6 it has a roof composed of three sloping planes that rise from each side of the dormer frame and converge at the ridge analogous to the hip roof Flat roof dormer The roof of this dormer is a single flat plane approximately horizontal although usually slightly inclined to allow rain water to run off Shed dormer This dormer also has a single flat plane roof but in this case it is sloped in the same direction as the principal roof only at a shallower angle 7 A shed dormer can provide head room over a larger area than a gabled dormer but as its roof pitch is shallower than the main roof it may require a different roof covering Wall dormer As opposed to the dormer being set part way up the slope of the roof this is a dormer whose face is coplanar with shares the horizontal position of the face of the wall below This means that the face of the dormer is essentially a continuation of the wall above the level of the eaves Eyebrow or eyelid dormer A low and wide dormer with a curved roof and no sides Instead the roof covering is gradually curved up and over the dormer in a flattened bell curve 8 Link dormer This can be a dormer that houses a chimney or a dormer that joins one part of a roof to another 9 Bonneted dormer An arched roof dormer rounded in shape when viewed from front Popular in Victorian homes especially in certain areas like the Southcott style row houses called Jellybean Row in St John s Newfoundland Nantucket dormer A three in one dormer structure composed of two gable dormers connected by a shed dormer in between 10 Lucarne A dormer on the slope of a Gothic spire usually slender and gable fronted 11 Blind or false dormer A dormer that is only external it provides no light and may provide no space internally Often used to make the building appear more aesthetic Gable fronted dormer shallow instance wholly glazed Hip roof dormer Flat roof dormer Shed dormer Wall dormer Eyebrow dormer Link dormer Lucarne on a church spire Bonneted dormerRequirements for permission to construct EditThe examples and perspective in this section may not represent a worldwide view of the subject You may improve this section discuss the issue on the talk page or create a new section as appropriate October 2013 Learn how and when to remove this template message Laneway house in Vancouver with set back dormers Because of the relatively small size dormers are very popular on laneway houses In some localities permission must be sought for construction of dormers and other features In England and Wales the General Permitted Development Order states classes of development for which such planning permission is not required 12 Such rights are only applicable outside conservation areas national parks Areas of Outstanding Natural Beauty or The Broads 12 Dormers may introduce imbalance in the street scene and be seen as inappropriate within the local setting of streets and buildings 13 In Vancouver there are regulations for laneway houses stating the minimum setback of the face of the dormer from the wall below with exceptions This is to prevent overshadowing neighbouring yards 14 Popularity EditDormers are popular in Ulster 15 and commonly used to create extra space when a loft is converted into a habitable room 16 See also EditBungalow Vernacular architectureReferences Edit Definition of dormer ArchitecturalDictionary org Archived from the original on 9 August 2016 Retrieved 23 May 2016 a b Barr Peter Illustrated Glossary 19th Century Adrian Architecture Sienaheights edu Retrieved May 23 2016 Etymology of dormer Online Etymology Dictionary Retrieved 23 May 2016 Traditional Dormer Windows Design Guide tewkesbury gov uk Tewkesbury Borough Council Retrieved 23 May 2016 Dormer Types Gabled ThisOldHouse com 7 July 2006 Retrieved 25 May 2016 Dormer Types Hipped ThisOldHouse com 7 July 2006 Retrieved 25 May 2016 Dictionary of Architecture amp Construction C M Harris Eyebrow Buffaloah com Retrieved 2012 09 28 A Visual Dictionary of Architecture Francis D K Ching Gitlin Jane 2003 Capes Design Ideas for Renovating Remodeling and Building New Newtown CT Taunton p 44 ISBN 9781561584369 dormer shed flat gable Bradley Simon ed 2010 Pevsner s Architectural Glossary Yale University Press p 80 ISBN 978 0 300 16721 4 a b Permitted Development Rights Planning Portal website Gov uk Retrieved 14 October 2013 Policy advice note Garden city settlements PDF TCPA October 2008 Archived from the original PDF on 24 September 2015 Retrieved 14 October 2013 City of Vancouver 2021 03 24 Laneway Housing How To Guide PDF City of Vancouver Archived PDF from the original on 2020 09 27 Retrieved 2021 10 06 The Bedside Book of Dormers and Other Delights A Pictorial Guide to Traditional Architectural Details in Ulster About Loft Conversions 2008 Dormer Loft Conversion About Loft Conversions Wikimedia Commons has media related to Dormers Retrieved from https en wikipedia org w index php title Dormer amp oldid 1131567324, wikipedia, wiki, book, books, library,
