is that clerestory is (architecture) the upper part of a wall containing windows to let in natural light to a building, especially in the nave, transept and choir of a church or cathedral while dormer is (architecture) a room-like, roofed projection from a sloping roof.
What is a clerestory roof?
One of the forms of roofs is the Clerestory Roof. When a building or house has a sloped roof that has a vertical brick wall showcasing either a few windows or a long window between the two slopes, it is called the Clerestory Roof. Installing a Clerestory Roof has to be planned beforehand, to accommodate the directions of sunlight, breeze, etc.
What is the purpose of a clerestory?
In architecture, a clerestory (/ ˈklɪərstɔːri / KLEER-stor-ee; lit. clear storey, also clearstory, clearstorey, or overstorey) is a high section of wall that contains windows above eye level. The purpose is to admit light, fresh air, or both.
What is a clerestory window?
Modern clerestories often are defined as vertical windows, located on high walls, extending up from the roofline, designed to allow light and breezes into a space, without compromising privacy. Factory buildings often are built with clerestory windows; modern housing designs sometimes include them as well.
What is symmetrical clerestory roofing?
Symmetrical Clerestory Roof Plan is where the roof is designed to have both roof halves of the building or structure to be slanting. These slanting roofs are built to an angle that resembles a triangle. One slanting roof lies above the other with a featured vertical wall between both slant roofs.
What is the purpose of clerestory?
Clerestory (pronounced “clear-story”) windows are large windows placed above eye level to illuminate an interior space with natural light. They're typically placed in a row right below the roofline, but they can also sit above roof lines or overhangs to maximize the amount of light in a given space.
What is the difference between a clerestory window and a transom window?
Interior transom windows are built over a door, while clerestory windows sit within a wall above eye level. In both cases, they allow inhabitants to retain privacy behind a closed door or wall while allowing natural light to flow in.
What is the purpose of a dormer on a house?
A dormer is like a small room with a window that projects out vertically from the rest of a sloped roof. When you convert attic space into living space, a dormer allows cross ventilation, brings in natural light, and adds architectural style.
What is the main advantage of clerestory windows over skylights?
Allowing ambient light in is the major functional benefit of clerestory windows. Their placement and design cut the glare, reducing the negative effects of the sun's shining rays. Instead, you'll get plenty of natural lighting that illuminates, and doesn't distract from, the space.
What are small windows at the top of a wall called?
A clerestory window is a large window or series of small windows along the top of a structure's wall, usually at or near the roof line. Clerestory windows are a type of "fenestration" or glass window placement found in both residential and commercial construction.
How high should clerestory windows be?
There really are no set rules when it comes to clerestory window dimensions. Even small windows such as a 2' x 2' can let in plenty of natural light while the height of their installation may keep the glare down inside the space.
What are the two types of dormers?
What are the different types of dormer roofs?Gable-fronted dormer. The gable dormer is probably the most common type of dormer. ... Hip roof dormer. ... Flat roof dormer. ... Shed Dormer. ... Wall dormer.
Do dormers add value to house?
The answer is, Yes. a dormer adds value to your house without any doubt and according to the latest research, a lot more people are adding extensions to their houses then before. It is estimated that almost 20% of house value is increased by adding a dormer. It is a lot of money if you want to sell your house.
What is the difference between a dormer and a mansard?
The only difference with a mansard is that the slope across the face of the mansard will make the construction look softer from the outside. It will, however, sacrifice some head height compared to a dormer that is built vertical off of the back wall.
Do clerestory windows leak?
Clearstory windows are a popular way to let light into a home without using skylights. However, much of the time, partially because they face south and partially because of poor craftsmanship, they leak.
Which way should a clerestory face?
They should face north or south. When facing east or west, it's because they're on every wall. Also, south-facing clerestories require overhangs. For those facing north, they'll receive less light but will not overheat a room.
Which direction should clerestory windows face?
Clerestory windows are ideal for providing daylighting and warmth in rooms where natural daylight and solar heat would otherwise not be available. Clerestories help to even out interior temperatures and give north facing or interior spaces rich, natural daylighting that is typically enjoyed only in south facing rooms.
What is meant by clerestory window?
clerestory, in architecture, any fenestrated (windowed) wall of a room that is carried higher than the surrounding roofs to light the interior space. In a large building, where interior walls are far from the structure's exterior walls, this method of lighting otherwise enclosed, windowless spaces became a necessity.
When would you use a transom window?
Transoms historically were used to allow passage of air and light between rooms even when doors were shut. They make perfect sense in row houses, which typically have long, narrow floor plans with windows only at the front and back. This house originally had four transom windows; all were painted shut.
Which direction should clerestory windows face?
Clerestory windows are ideal for providing daylighting and warmth in rooms where natural daylight and solar heat would otherwise not be available. Clerestories help to even out interior temperatures and give north facing or interior spaces rich, natural daylighting that is typically enjoyed only in south facing rooms.
Why did Egyptians use clerestory windows?
Clerestory windows were introduced in the ancient Egyptian civilization. The technology was used to bring light into interior spaces. The initial clerestory windows were seen in railway carriages before they were seen in Egyptian temples with columns.
What were the lightwells in the Minoan palaces?
In the Minoan palaces of Crete such as Knossos, by contrast, lightwells were employed in addition to clerestories. According to Biblical accounts, the Hebrew temple built by King Solomon featured clerestory windows made possible by the use of a tall, angled roof and a central ridgepole.
What is the clerestory of a Roman church?
Historically, clerestory denoted an upper level of a Roman basilica or of the nave of a Romanesque or Gothic church, the wall s of which rise above the rooflines of the lower aisles and are pierced with windows.
What type of bus had clerestory windows?
Clerestories were also used in early double-decker buses, giving better ventilation and headroom in the centre corridor, as well as better illumination. The Volkswagen Type 2 Kombi, or Transport, commonly called the Microbus, came in a deluxe version with clerestory windows.
What is a clerestory window?
Modern clerestories often are defined as vertical windows, located on high walls, extending up from the roofline, designed to allow light and breezes into a space, without compromising privacy. Factory buildings often are built with clerestory windows; modern housing designs sometimes include them as well.
What is the nave of a Romanesque church called?
Initially the nave of a large aisled and clerestoried church was of two levels, arcade and clerestory. During the Romanesque period a third level was inserted between them, a gallery called the " triforium ". The triforium generally opens into space beneath the sloping roof of the aisle. This became a standard feature of later Romanesque and Gothic large abbey and cathedral churches. Sometimes another gallery set into the wall space above the triforium and below the clerestory. This feature is found in some late Romanesque and early Gothic buildings in France.
What is the form of a church in Italy?
Early Christian churches and some Byzantine churches, particularly in Italy, are based closely on the Roman basilica, and maintained the form of a central nave flanked by lower aisles on each side. The nave and aisles are separated by columns or piers, above which rises a wall pierced by clerestory windows.
What is a clerestory?
clear storey, also clearstory, clearstorey, or overstorey) is a high section of wall that contains windows above eye level. The purpose is to admit light, fresh air, or both.
What is a clerestory roof?
A clerestory roof is a sloping roof made up of high and low-slung roof panels that are joined in the center by a flat wall. The sloping difference between the panels allows for window space, which is used to bring natural light into a building.
What are the considerations of using a clerestory roof?
There are certain considerations that you will need to take into account before installing clerestory roofs .
Can you convert your existing roof into a clerestory roof?
However, this type of modification may be more difficult to implement than simply adding new windows on an already built roof. Because this process requires making several roof modifications, you should consider it as a last resort.
What Is Clerestory Roof?
Roofs can be of various forms and designs. They can either be sloped or flat, protruding or aligned, etc. One of the forms of roofs is the Clerestory Roof.
What Materials are Used in a Clerestory Roof?
Just like any other roof, Clerestory Roofs can be constructed with the use of any material. The selection of constructing material for Clerestory Roofs largely depends on the preferences of the future occupants. Another aspect to look into for selecting constructing material is what the end result needs to look like.
Overview
History
The technology of the clerestory appears to originate in the temples of ancient Egypt. The term "clerestory" is applicable to Egyptian temples, where the lighting of the hall of columns was obtained over the stone roofs of the adjoining aisles, through gaps left in the vertical slabs of stone. Clerestory appeared in Egypt at least as early as the Amarna period.
Modern clerestory windows for energy-efficient buildings
Modern clerestories often are defined as vertical windows, located on high walls, extending up from the roofline, designed to allow light and breezes into a space, without compromising privacy. Factory buildings often are built with clerestory windows; modern housing designs sometimes include them as well.
Modern clerestory windows may have another especially important role, besides daylighting and v…
Transportation
Clerestory roofs were used on railway carriages (known as "clerestory carriages") from the mid-nineteenth century to the 1930s.
The first Pullman coaches in England had clerestory roofs, and were imported and assembled at Derby, where Pullman set up an assembly plant in conjunction with the Midland Railway, a predecessor of the London Midland and Scottish R…
See also
• Säteritak, a Swedish roof style with a strip of clerestory-type of windows halfway up a hip roof
• Architecture of cathedrals and great churches
• Gothic architecture
• Passive daylighting
External links
• Clerestory coach (railway) images - nineteenth century examples from more than 20 countries