All openings in the building envelope, including curtain walls, windows, doors, and skylights, are referred to as fenestration systems. Fenestration is typically seen as an aesthetic element, but it also has an impact on building performance. For example, energy efficiency can be improved by using low-emission materials for windows and doors. Color can be an important factor in determining how people feel about a building; for example, a blue facade will reflect light into the interior while a white facade will transmit light into the room.
There are two main types of fenestration systems: fixed and movable. A fixed system cannot be moved once installed, whereas with a movable system the window or door can be removed from its frame (usually by a professional glazier) and replaced with another unit. This allows for replacement of old property owners who may want to change the appearance of their building or replace broken windows without having to pay to have the original system removed and replaced.
Fixed fenestration systems include: windows, sliding glass doors, and patio doors. They are installed before the structure is completed so they do not move when constructed over an opening such as a garage or alley. These fenestrations allow natural light into the building and provide views outside, but due to their shape, they are generally less efficient at keeping out heat than other fenestration types.
A fenestra (plural fenestrations or fenestrations) is a tiny aperture or pore that is often used as a word in the biological sciences. It is Latin meaning "window" and is used to define a pore in an anatomical structure in a variety of areas. Fenestrations are found in bones, especially those of mammals, where they provide pathways for blood vessels to reach muscle and other tissues. They can also be found in the wing membranes of some insects, where they allow air to pass while preventing water from entering.
Fenestrations play an important role in respiration by allowing oxygen into cells and removing carbon dioxide out of them. They are also important in digestion because certain enzymes present in saliva are able to break down proteins and carbohydrates near blood vessels, which would otherwise be inaccessible to these enzymes. The presence of fenestrations allows nutrients to reach the cells surrounding the vessel wall, helping muscles and other organs function properly.
In biology, the term fenestration usually refers to a perforation of some kind in an organ or bone, such as through a skull or vertebra. However, this article uses the term to refer to small pores exposed in skin or other tissue due to removal of the outer layer, such as when making windows in sardine cans to catch fish bait or to smoke foods without burning your house down.
A porch modernizes the façade of a property while easily fitting in with the original construction of a house. The purpose of a porch is to complement rather than detract from a home's inherent charm or individuality. Porches not only offer beauty to houses, but they also bring functionality. People go on porches to enjoy a serene moment away from their busy lives, and to get some much-needed sunshine.
There are several ways people use their porches including as a living room, dining room, library, art studio, and even a bedroom if needed. Porches are also useful when it gets cold outside because you can then leave open the door to your house or leave all the windows and doors open without worrying about someone breaking in.
People usually use porches during certain times of the year. For example, summertime people might use porches to drink coffee or eat snacks while watching the kids play in the yard or read a book under the stars. While wintertime people might use their porches for hot cups of tea or delicious meals out of food containers inside the house.
There are many different types of porches including single-story, double-story, bay, and bow. A single-story porch is just that, one story high with no upstairs portion. Double-story porches have two levels connected by stairways or ramps.
Buttresses are a type of Gothic architectural feature. It is a structure that holds up a wall. It resists outward pressure from the building's interior sections and the weight of the roof, preventing the walls from bending and falling outward. In buildings that were not designed with them, buttresses can be very conspicuous or even rudely intrusive where they stick out beyond the wall surface.
In order to strengthen a section of wall that is subject to stress (such as where an entrance would be), a buttress is built into the exterior face of the wall. This additional layer of stone is laid next to the original wall and attached to it with mortar. The buttress provides extra support for the wall by spreading out the load over a larger area, reducing the amount of material needed for the wall itself. As well as being an aesthetic feature, this also allows more space inside the castle for rooms and halls.
Buttresses were used extensively in England during the 13th century when many castles were built. They are found particularly often at entrances where the need is greatest for added strength and stability. After the English Civil War most castles were under government siege for many years so needed reinforcements everywhere!
An example of a medieval castle without buttresses is Windsor Castle. This is because its builders were not interested in aesthetics but rather in defense.