- When a Door closes a Window opens
- How to Discover Opportunity in Times of Great Challenge?
- #1 Take yourself a break, time will heal!
- #2 Distract yourself
- #3 Develop acceptance
- #4 Have the courage to find new possibilities
- #5 Avoid comparisons with the door that closed
- #6 Go with the flow and don’t force things
- #7 Discover the lessons and internalize them
- About Author
- Does Opening Windows & Doors Help With COVID-19 ?
- Recommended Air Changes Per Hour
- Open Windows to Increase Indoor Airflow
- Opening Windows in Real World Homes
- Opening Doors to Increase Indoor Airflow in Real World Homes
- Advantages & Disadvantages of Opening Windows & Doors
- Bottom Line:
- Get Your Free Guide to Breathing Safe
- Window
- Contents
- Etymology [ edit | edit source ]
- History [ edit | edit source ]
- Types of windows [ edit | edit source ]
- Double-hung sash window [ edit | edit source ]
- Single-hung sash window [ edit | edit source ]
- Horizontal sliding sash window [ edit | edit source ]
- Casement window [ edit | edit source ]
- Awning window [ edit | edit source ]
- Hopper window [ edit | edit source ]
- Tilt and slide window [ edit | edit source ]
- Tilt and turn window [ edit | edit source ]
- Transom window [ edit | edit source ]
- Jalousie window [ edit | edit source ]
- Clerestory window [ edit | edit source ]
- Skylight [ edit | edit source ]
- Roof window [ edit | edit source ]
- Roof lantern [ edit | edit source ]
- Bay window [ edit | edit source ]
- Oriel window [ edit | edit source ]
- Thermal window [ edit | edit source ]
- Fixed window [ edit | edit source ]
- Picture window [ edit | edit source ]
- Multi-lit window [ edit | edit source ]
- Emergency exit/egress window [ edit | edit source ]
- Stained glass window [ edit | edit source ]
- French window [ edit | edit source ]
- Technical terms [ edit | edit source ]
- Window construction [ edit | edit source ]
- Grids or Muntins [ edit | edit source ]
- Frame and sash construction [ edit | edit source ]
- Glazing and filling [ edit | edit source ]
- Other construction details [ edit | edit source ]
- Windows and the sun [ edit | edit source ]
- Sun incidence angle [ edit | edit source ]
- Solar window [ edit | edit source ]
- Window coverings [ edit | edit source ]
- See also [ edit | edit source ]
- Notes [ edit | edit source ]
- External links [ edit | edit source ]
When a Door closes a Window opens
The following article is all about the sophisticated art of discovering possibilities in times of great trouble; and the way to see the good in bad situations. Life can be a tough ride. It’s harsh, hard and slaps you occasionally in the face. Sometimes, it seems like a never-ending struggle from one problem to another. And as if this wasn’t enough already, we encounter every once in a while an incident that is so severe, so drastic and shocking that it changes our life forever. Unfortunately, in most cases, this change is not for the better. ( Feel free to skip the intro to see how to discover opportunities in times of setbacks.) There are times in life when a door is proverbially slammed right in front of your face. I’ve experienced one major life-changing event, and of course a couple of minor events that everyone else undergoes as well, like being left, given notice, stolen from, etc.
And certainly, I asked myself whenever I encountered one of these “minor life-changing events” why it was always me who had to endure such an awful thing. That was until I grew older and was confronted with a truly “major life-changing event”. It did not only make me realize how insignificant most of the minor happenings were, but it also elucidated all the things I could no longer do in my life. It made me realize all the doors that had been slammed shut, never to be opened again.
I spend a lot of time in grief about all the doors that were closed and all the opportunities that were missed. It was a tough episode in my life, but time is a great healer, as they say, and so I began to make the best out my situation. And after many, many months I had learned to at least deal with the situation. But it took me a lot of reflection and courage to discover all the doors, windows and opportunities that had presented themselves only as a result of this major life-changing event.
Only when I was brave enough to accept the situation I found myself in, only when I was courageous enough to let go of the bitterness concerning the missed opportunities, I began to discover new paths and even more exciting avenues. I do realize now that – especially this tough and difficult time – paved the way to something new and made me the person I am today. If someone would ask me if I wanted to experience a similar thing again, I would certainly answer no, as it was something you wouldn’t even wish for your worst enemy. But, I wouldn’t want to miss all the amazing opportunities it brought me.
New opportunities in times of great trouble
There’s a lesson to be learned in everything that happens to you. And it takes a lot of courage to discover the windows that were opened by such a situation. Remaining in grief and self-pity, or entirely giving up is always the easier alternative. But in reality, some doors and windows can only be opened, when an existing door is closed.
When a door closes, look out for the window that opens!
How to Discover Opportunity in Times of Great Challenge?
In the following, I will show you some of the most important steps toward finding the good in bad situations.
#1 Take yourself a break, time will heal!
That’s, in my opinion, the single most important aspect in discovering opportunities in times of great trouble. Naturally, you might not see any new window opening when your emotional wounds are still open and the pain is still felt. Your situation might seem hopeless, while the memory is still fresh. Therefore, it’s so important to give yourself a hiatus, before even thinking of looking for a window that has opened. [Of course, this only applies to very severe happenings!]. The reason why I’m stressing this out lies therein that you will not be ready to discover any opportunity if you haven’t allowed yourself some time for yourself to come to terms with what happened.
Depending on the severity of what happened, this can take months or even years! But time heals all wounds; it may not restore things, it may not change your life for the better, but it allows you to come to terms with the past.
Feel free to bookmark this site, to return to it at a later point in time, if you don’t feel ready to continue, yet.
If you allow time to pass, you will notice that many new opportunities have presented themselves, and may have already been integrated into your new life. This often goes unnoticed, at the first moment.
#2 Distract yourself
Try to get distraction, by focusing on things that do not remind you of what happened. Treat yourself to something good. Also, by keeping yourself engaged in an activity that totally absorbs your mind and soul, you will more likely think about positive things, for a longer period of time.
#3 Develop acceptance
Secondly, acceptance about what happened is needed before you are ready to discover new possibilities, challenges and unnoticed options. The perfect moment to search and discover the windows that have opened is when you do not feel any more grief about the door that has closed.
#4 Have the courage to find new possibilities
Does it take courage to discover and accept the windows as what they are? Yes, certainly! I can only relate to my situation, but it took me a lot of courage to discover these new opportunities and just as much courage to see what could be found behind these windows.
#5 Avoid comparisons with the door that closed
The difficulty for me lied therein that not all of these new opportunities looked worthwhile at all. Especially not when compared to my past lifestyle. And this was a major mistake, which prohibited me from discovering all the new fantastic windows and doors much earlier. I firmly believe that I would have never chosen to discover what could be found in each new opportunity, if I had continued to compare all of them with the doors that had closed. So, it was tremendously helpful for me to clarify that a new chapter in my life had begun, whether I liked it or not.
Therefore, it’s so important to let go of the door that closed. In most situations, the windows that opened through a troublous time do not look like new opportunities at all. Many of them seem much more like a step backward, but I realized that most of them turned out to be very profound and enriched my life.
#6 Go with the flow and don’t force things
I know from my personal experience that most of the new circumstances do not immediately present themselves after a door has been shut close. Also, the attempt to force new doors to open is, in my opinion, counter-productive. Rather than doing that, I would recommend you to simply “go with the flow”, i.e. by doing whatever feels right to you at the moment. A while later you will automatically know if these things have developed into new opportunities or not.
#7 Discover the lessons and internalize them
Number 7 applies to mildly bad situations, but not to all malign happenings. Many bad situations we encounter in life bring a valuable, mostly hidden, lesson. And in fact, depending on your own insight about life, a lesson can be drawn out of nearly every stroke of faith, (not all though!) By finding the root cause for a bad happening, you have the chance to learn a lesson out of what happened, in order to avoid similar occurrences in the future.
What were the negative events in your life that helped you to discover new opportunities? We’re excited to hear from you in the comment section below.
The following articles might also interest you:
About Author
Steve is the founder of Planet of Success, the #1 choice when it comes to motivation, self-growth and empowerment. This world does not need followers. What it needs is people who stand in their own sovereignty. Join us in the quest to live life to the fullest!
Does Opening Windows & Doors Help With COVID-19 ?
Data shows that having good indoor ventilation can reduce the chance of virus transmission. Armed with that knowledge, can something as simple as opening a door or a window help to fight COVID-19 and reduce coronavirus transmission indoors?
Recommended Air Changes Per Hour
Before we can say how effective opening windows really is, we need to know what our target for indoor ventilation is.
In a typical home, ventilation rates of 0.35–1 air changes per hour are recommended. For an office it’s approximately 2–3 air change per hour. However for areas with potentially high levels of viruses (like hospitals, or in a COVID context), the CDC recommends a ventilation rate of 6-12 air changes per hour.
So, can opening windows achieve these ventilation levels?
Open Windows to Increase Indoor Airflow
Data shows that opening windows in hospitals can improve air circulation by almost 20 times, from 1 air change per hour up to 20. That’s great!
However, that was only the case for ‘old-fashioned’ hospitals with large windows and doors. When scientists tested more modern hospitals with smaller windows, they found ventilation rates were half those of the older hospitals.
However, for both the modern and old-fashioned hospitals, opening the windows increased the air changes per hour above the 6-12ACH recommended by the CDC.
Opening Windows in Real World Homes
That’s for hospitals, which are designed with high ventilation in mind. But how about at home? Scientists from the US tested the effect of opening windows on the ventilation in a home in Cary, NC.
They found that opening windows almost doubled the air changes per hour throughout the house. From a baseline of 0.2ACH, air changes increased to 0.35ACH. That’s much lower than the 20 times increase found when opening windows in the old-fashioned hospitals. However, changes per hour just within the ASHRAE recommended range of 0.35 – 1.0 ACH.
If the goal is to reach the CDC’s recommended ventilation rate of 6 – 12 ACH, in an attempt to reduce COVID-19 transmission, then opening windows alone is not enough.
Opening Doors to Increase Indoor Airflow in Real World Homes
If windows don’t give a high enough air flow, then how about opening doors? The scientists in the US also studied this. The scientists simulated a real home by opening the door from 3 to 60 times per hour, as if people were entering and leaving the home. Here’s what they found:
No real change in ventilation was seen when the doors were opened fewer than 12 times per hour. Opening the door 12 times per hour increased the ventilation rate by about 40%. Opening the door every minute (60 times per hour) almost doubled the house’s ventilation rate.
That’s on par with opening the doubling in ventilation that occurred when opening windows. However, it’s still a long way off 6-12 air changes per hour the CDC recommends. If air changes in the order of 6-12 really are required, then the best ways to achieve this may be increasing the internal HVAC system, using a fan to blast air in/our of a window, or to install an air purifier.
Advantages & Disadvantages of Opening Windows & Doors
Opening doors and windows seem like simple, easy ways to increase a room’s ventilation. But there are other downsides. Here’s a summary of the advantages and disadvantages of opening windows and doors to increase ventilation:
Advantages:
- Quick & Easy – it’s built into (most) buildings!
- Can double the ventilation in most homes, or much more in places with bigger
Disadvantages:
- Difficult to control ventilation direction, although adding a fan may help.
- Difficult and potentially costly to control indoor temperature.
- Allows unfiltered outdoor air into the building [1]. Not great for places with outdoor air pollution.
- Not all buildings allow for windows to be opened
Bottom Line:
For buildings with large windows and high ceilings, opening windows can dramatically increase the indoor ventilation. However for more typical houses, offices and schools with smaller window, the improvement to ventilation is minimal. Other approaches such as using HVAC or running an air purifier may be more effective.
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Window
Windows of a brick building in Washington DC
Woven bamboo window in Japan
Factory site in Berlin-Spindlersfeld: window with letter S for Spindler
A window is a transparent opening in a wall or door that allows the passage of light and, if not closed or sealed, air and sound. Windows are usually glazed or covered in some other transparent or translucent material. Windows are held in place by frames, which prevent them from collapsing in.
Contents
Etymology [ edit | edit source ]
Arab-style windows in Jerusalem
The word window originates from the Old Norse ‘vindauga’, from ‘vindr – wind’ and ‘auga – eye’, i.e. «wind eye«. In Norwegian Nynorsk and Icelandic the Old Norse form has survived to this day (in Icelandic only as a less used synonym to gluggi), in Swedish the word vindöga remains as a term for a hole through the roof of a hut, and in the Danish language ‘vindue’ and Norwegian Bokmål ‘vindu’, the direct link to ‘eye’ is lost, just like for ‘window’. The Danish (but not the Bokmål) word is pronounced fairly similar to window.
Window is first recorded in the early 13th century, and originally referred to an unglazed hole in a roof. Window replaced the Old English ‘eagþyrl’, which literally means ‘eye-hole,’ and ‘eagduru’ ‘eye-door’. Many Germanic languages however adopted the Latin word ‘fenestra’ to describe a window with glass, such as standard Swedish ‘fönster’, or German ‘Fenster’. The use of window in English is probably due to the Scandinavian influence on the English language by means of loanwords during the Viking Age. In English the word fenester was used as a parallel until the mid-1700s and fenestration is still used to describe the arrangement of windows within a façade.
From Webster’s 1828 Dictionary: Window, n. [ G. The vulgar pronunciation is windor, as if from the Welsh gwyntdor, wind-door.] [1]
A half-glazed window of the 17th century from Scotland
History [ edit | edit source ]
Primitive windows were just holes in a wall. Later, windows were covered with animal hide, cloth, or wood. Shutters that could be opened and closed came next. Over time, windows were built that both protected the inhabitants from the elements and transmitted light: mullioned glass windows, which joined multiple small pieces of glass with leading, paper windows, flattened pieces of translucent animal horn, and plates of thinly sliced marble. The Romans were the first to use glass for windows. In Alexandria ca. 100 AD, cast glass windows, albeit with poor optical properties, began to appear. Mullioned glass windows were the windows of choice among European well-to-do, whereas paper windows were economical and widely used in ancient China, Korea and Japan. In England, glass became common in the windows of ordinary homes only in the early 17th century whereas windows made up of panes of flattened animal horn [citation needed] were used as early as the 14th century in Northern Britain. Modern-style floor-to-ceiling windows became possible only after the industrial glass making process was perfected.
Types of windows [ edit | edit source ]
Double-hung sash window [ edit | edit source ]
This sash window is the traditional style of window in the USA, and many other places that were formerly colonized by the UK, with two parts (sashes) that overlap slightly and slide up and down inside the frame. The two parts are not necessarily the same size. Nowadays, most new double-hung sash windows use spring balances to support the sashes, but traditionally, counterweights held in boxes on either side of the window were used. These were and are attached to the sashes using pulleys of either braided cord or, later, purpose-made chain. Double-hung sash windows were traditionally often fitted with shutters. Sash windows may be fitted with simplex hinges which allow the window to be locked into hinges on one side, while the rope on the other side is detached, allowing the window to be opened for escape or cleaning.
Single-hung sash window [ edit | edit source ]
One sash is movable (usually the bottom one) and the other fixed. This is the earlier form of sliding sash window, and is also cheaper.
Horizontal sliding sash window [ edit | edit source ]
Has two or more sashes that overlap slightly but slide horizontally within the frame. In the UK, these are sometimes called Yorkshire sash windows, presumably because of their traditional use in that county.
Casement window [ edit | edit source ]
A window with a hinged sash that swings in or out like a door comprising either a side-hung, top-hung (also called «awning window»; see below), or occasionally bottom-hung sash or a combination of these types, sometimes with fixed panels on one or more sides of the sash. In the USA these are usually opened using a crank, but in parts of Europe they tend to use projection friction stays and espagnolette locking. Formerly, plain hinges were used with a casement stay. Handing applies to casement windows to determine direction of swing. The casement window is the dominant type now found in the UK and parts of Europe.
Awning window [ edit | edit source ]
An awning window is a casement window that is hung horizontally, hinged on top, so that it swings outward like an awning.
Hopper window [ edit | edit source ]
A hopper window is a bottom hung casement window that opens similar to a draw bridge typically opening to the outside.
Tilt and slide window [ edit | edit source ]
A window (more usually a door-sized window) where the sash tilts inwards at the top and then slides horizontally behind the fixed pane.
Tilt and turn window [ edit | edit source ]
A window which can either tilt inwards at the top, or can open inwards hinged at the side.
Transom window [ edit | edit source ]
A window above a door; in an exterior door the transom window is often fixed, in an interior door it can open either by hinges at top or bottom, or rotate on hinges. It provided ventilation before forced air heating and cooling. A fan-shaped transom is known as a fanlight, especially in the British Isles.
Jalousie window [ edit | edit source ]
Jalousie or louvered window
Also known as a louvered window, the jalousie window consists of parallel slats of glass or acrylic that open and close like a Venetian blind, usually using a crank or a lever. They are used extensively in tropical architecture. A jalousie door is a door with a jalousie window.
Clerestory window [ edit | edit source ]
A window set in a roof structure or high in a wall, used for daylighting.
Skylight [ edit | edit source ]
A flat or slope window used for daylighting, built into a roof structure that is out of reach.
Roof window [ edit | edit source ]
A roof window at the Musée du Louvre (Paris)
A sloped window used for daylighting, built into a roof structure that is within reach.
Roof lantern [ edit | edit source ]
A roof lantern is a multi-paned glass structure, resembling a small building, built on a roof for day or moon light. Sometimes includes an additional clerestory. May also be called a cupola.
Bay window [ edit | edit source ]
A multi-panel window, with at least three panels set at different angles to create a protrusion from the wall line.
Oriel window [ edit | edit source ]
A window with many panels. It is most often seen in Tudor-style houses and monasteries. An oriel window projects from the wall and does not extend to the ground. Oriel windows originated as a form of porch. They are often supported by brackets or corbels. Buildings in the Gothic Revival style often have oriel windows.
Thermal window [ edit | edit source ]
Thermal, or Diocletian, windows are large semicircular windows (or niches) which are usually divided into three lights (window compartments) by two vertical mullions. The central compartment is often wider than the two side lights on either side of it.
Fixed window [ edit | edit source ]
A window that cannot be opened, whose function is limited to allowing light to enter (Unlike an unfixed window, which can open and close). Clerestory windows are often fixed. Transom windows may be fixed or operable.
Picture window [ edit | edit source ]
A very large fixed window in a wall, typically without glazing bars, or glazed with only perfunctory glazing bars near the edge of the window. Picture windows are intended to provide an unimpeded view, as if framing a picture.
Multi-lit window [ edit | edit source ]
A window glazed with small panes of glass separated by wooden or lead «glazing bars», or «muntins», arranged in a decorative «glazing pattern» often dictated by the architectural style at use. Due to the historic unavailability of large panes of glass, this was the prevailing style of window until the beginning of the twentieth century, and is traditionally still used today.
Emergency exit/egress window [ edit | edit source ]
A window big enough and low enough so that occupants can escape through the opening in an emergency, such as a fire. In the United States, exact specifications for emergency windows in bedrooms are given in many building codes. Vehicles, such as buses and aircraft, frequently have emergency exit windows as well. [2]
Stained glass window [ edit | edit source ]
A stained glass panel depicting Biblical scenes at a historic church in Scotland
A window composed of pieces of colored glass, transparent or opaque, frequently portraying persons or scenes. Typically the glass in these windows is separated by lead glazing bars. Stained glass windows were popular in Victorian houses and some Wrightian houses, and are especially common in churches.
French window [ edit | edit source ]
A French window, also known as a French door is really a type of door, but one which has one or more panes of glass set into the whole length of the door, meaning it also functions as a window. In Italy they are very common, usually overlooking a terrace, known as portafinestra (door-window).
Technical terms [ edit | edit source ]
In insulated glass production, the term «lite», or «light», refers to a glass pane, several of which may be used to construct the final window product. For example, a sash unit, consisting of at least one sliding glass component, is typically composed of two lites, while a fixed window is composed of one lite. The terms «single-light», «double-light» etc refer to the number of these glass panes in a window.
The lites in a window sash are divided horizontally and vertically by narrow strips of wood or metal called muntins. More substantial load bearing or structural vertical dividers are called mullions, with the corresponding horizontal dividers referred to as transoms.
In the United States, the term replacement window means a framed window designed to slip inside the original window frame from the inside after the old sashes are removed. In Europe, however, it usually means a complete window including a replacement outer frame.
The U.S., term new construction window means a window with a nailing fin designed to be inserted into a rough opening from the outside before applying siding and inside trim. A nailing fin is a projection on the outer frame of the window in the same plane as the glazing, which overlaps the prepared opening, and can thus be ‘nailed’ into place.
In the UK and mainland Europe, windows in new-build houses are usually fixed with long screws into expanding plastic plugs in the brickwork. A gap of up to 13mm is left around all four sides, and filled with expanding polyurethane foam. This makes the window fixing weatherproof but allows for expansion due to heat.
A beam over the top of a window is known as the lintel or transom.
In the US, the NRFC Window Label lists the following terms:
- Thermal transmittance (U-factor). Best values are around U-0.15 (equal to 0.8 W/m2/K).
- Solar heat gain coefficient (SHGC) (ratio of solar heat (infrared) passing through the glass to incident solar heat)
- Visible transmittance (VT) (ratio of transmitted visible light divided by incident visible light)
- Air Leakage (AL) (Measured in cubic foot per minute per linear foot of crack between sash and frame)
- Condensation Resistance (CR) (Measured between 1 and 100. The higher the number, the higher the resistance of the formation of condensation.) [3]
Window construction [ edit | edit source ]
5-chamber plastic window profile
Examples of modern plastic and wooden window profiles with insulated glazing
Modern wooden framed window fitted in the 14th century Lyme Regis watermill, UK.
Windows can be a significant source of heat transfer. [4] Therefore, insulated glazing units consist of two or more panes to reduce the transfer of heat.
Grids or Muntins [ edit | edit source ]
These are the decorative, usually wood pieces that separate a larger pane into smaller segments. The muntins are generally held to the window frame using a pin of some sort.
Frame and sash construction [ edit | edit source ]
Frames and sashes can be made of the following materials:
Material | thermal resistance | Durability | Maintenance | Cost | Recycled content | Comment |
---|---|---|---|---|---|---|
Wood | very good | variable | high | high | low | shrinks and swells with humidity changes |
vinyl or PVC | very good | good* | low | low | very low | |
Aluminum | bad** | good | very low | low | typically >95% | used in most large structures |
Steel | medium | superior | very low | high | >98% | typically welded at corner joints |
Fiberglass | very good | very good* | very low | high | medium |
* Vinyl and fiberglass frames perform well in accelerated weathering tests. Because vinyl is not as strong as other materials, some vinyl frames are reinforced with metal or composite materials to improve their structural strength.
** Modern metal window frames are typically separated by a thermal break made of a non-conducting material. This greatly increases thermal resistance, while retaining virtually all of the structural strength.
Composites may combine materials to obtain aesthetics of one material with the functional benefits of another.
Glazing and filling [ edit | edit source ]
Low-emissivity coated panes reduce heat transfer by radiation, which, depending on which surface is coated, helps prevent heat loss (in cold climates) or heat gains (in warm climates).
High thermal resistance can be obtained by evacuating or filling the insulated glazing units with gases such as argon or krypton, which reduces conductive heat transfer due to their low thermal conductivity. Performance of such units depends on good window seals and meticulous frame construction to prevent entry of air and loss of efficiency.
Modern double-pane and triple-pane windows often include one or more low-e coatings to reduce the window’s U-factor. In general, soft-coat low-e coatings tend to result in a lower solar heat gain coefficient (SHGC) than hard-coat low-coatings.
Modern windows are usually glazed with one large sheet of glass per sash, while windows in the past were glazed with multiple panes separated by «glazing bars», or «muntins», due to the unavailability of large sheets of glass. Today, glazing bars tend to be decorative, separating windows into small panes of glass even though larger panes of glass are available, generally in a pattern dictated by the architectural style at use. Glazing bars are typically wooden, but occasionally lead glazing bars soldered in place are used for more intricate glazing patterns.
Other construction details [ edit | edit source ]
Many windows have movable window coverings such as blinds or curtains to keep out light, provide additional insulation, or ensure privacy. Windows allow natural light to enter, but too much can have negative effects such as glare and heat gain. Additionally, while windows allow the user to see the outside, there needs to be a way to maintain privacy on in the inside. [5] Window coverings are practical accommodations for these issues.
Windows and the sun [ edit | edit source ]
Sun incidence angle [ edit | edit source ]
Historically, windows are designed with surfaces parallel to vertical building walls. Such a design allows considerable solar light and heat penetration due to the most commonly occurring incidence of sun angles. In passive solar building design, an extended eave is typically used to control the amount of solar light and heat entering the window(s).
An alternate method would be to calculate a more optimum angle for mounting windows which accounts for summer sun load minimization, with consideration of the actual latitude of the particular building. An example where this process has been implemented is the Dakin Building, Brisbane, California; much of the fenestration has been designed to reflect summer heat load and assist in preventing summer interior over-illumination and glare, by designing window canting to achieve a near 45 degree angle.
Solar window [ edit | edit source ]
Photovoltaïc windows not only provide a clear view and illuminate rooms, but also use sunlight to efficiently help generate electricity for the building. [6] In most cases, translucent photovoltaïc cells are used.
Window coverings [ edit | edit source ]
A window covering is a shading or screening device that can be used for multiple purposes. For example, some window coverings are used to control solar heat gain and glare. Typically, there are external shading devices and internal shading devices. [7]
For high-rise buildings, smart glass can be used as an alternative.
See also [ edit | edit source ]
Notes [ edit | edit source ]
- ↑»1828 Webster». Foundation for AHA. October 16, 2009 . http://www.1828-dictionary.com/d/search/word,window . Retrieved 2010-05-02 .
- ↑U.S. Dept. of Transportation: Safety information for bus/motorcoach passengers
- ↑NRC Heat Loss Fact Sheet
- ↑ Carmody, J., Selkowitz, S., Lee, E. S., Arasteh, D., & Willmert, T. (2004). Window Systems for High-Performance Buildings. New York, NY: W. W. Norton & Company, Inc.
- ↑ Howell, Sandra C. (1976). Designing for the Elderly; Windows. Massachusetts Institute of Technology. Department of Architecture. Design Evaluation Project.
- ↑MIT opens new ‘window’ on solar energy
- ↑ Beckett, H. E., & Godfrey, J. A. (1974). Windows: Performance, design and installation. New York, NY: Van Nostrand Reinhold Company.
External links [ edit | edit source ]
Wikimedia Commons has media related to Windows that may be added |
- Roman Glass from Metropolitan Museum of Art
- National Fenestration Rating Council
- The history of Metal Window
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