High-performance Low-E windows are designed to keep a house’s temperature consistent reflecting the interior temperatures back inside while blocking exterior temperatures from passing through the glass. Low-E window glass: Keeps heat on the side of the glass where it originated
What are the different types of high-performance glasses?
Presently, there are three primary high-performance glass es available in the market. They are: Low-E or Low-Emissivity glass is a type of high-performance glass that blocks out harmful UV and infrared rays of the sun.
What is low E glass and how does it work?
During the winter, Low E glass allows in natural light, while keeping the rooms in your home heated and in the summer, natural light is let in without having damaging UV rays enter through your windows.
What is a low-E window and what makes it energy efficient?
What is a Low-E Window and What Makes it Energy Efficient? Low-E, or low-emissivity, glass was created to minimize the amount of infrared and ultraviolet light that comes through your glass, without minimizing the amount of light that enters your home. Low-E glass windows have a microscopically thin coating that is transparent and reflects heat.
What is low-emissivity glass?
Low-emissivity glass (or low-E glass) provides natural light transmission while helping to limit heat gain and thermal energy transfer. Due to continuous improvements in its thermal insulation and solar control performance, glass is a flexible building material that can help improve the energy efficiency of buildings.
What are the different levels of Low-E glass?
There are two types of low-e glass: hard coat (online) or soft coat (offline). Hard coat low-e glass is made by coating the glass during production with a thin metallic oxide layer, effectively welding it to the glass surface. Soft coat low-e glass, or sputter coating, is applied to glass that has already been formed.
Does Low-E glass make a difference?
Low-E windows help reflect heat and improve windows' thermal performance, lower heating and cooling costs, allow natural light inside and work in almost any climate while being cost-effective, non-toxic and long-lasting. If you want the best for your windows, Low-E glass windows are a perfect choice.
What is the purpose of Low-E glass?
Low-E coatings have been developed to minimize the amount of ultraviolet and infrared light that can pass through glass without compromising the amount of visible light that is transmitted. When heat or light energy is absorbed by glass, it is either shifted away by moving air or re-radiated by the glass surface.
What is the difference between clear glass and Low-E glass?
Low E glass is essentially standard clear glass with a microscopic, transparent coating on its surface that is better at reflecting heat than the glass itself, creating a composition that has a lower emissivity than standard glass.
Is Low-E worth the money?
Absolutely! Low-e glass options are definitely worth the investment. For just a few more dollars than standard glass, you get the energy savings and protection from low-e glass. And that little extra cost can pay for itself with the money you'll save on utility bills!
Does Low-E glass scratch easily?
Why is that? The coating is actually very difficult to scratch and is harder than the glass. For example, if you scratch the coating with a coin, it is the metal from the coin you see deposited on the glass surface itself rather than a scratch.
How long does Low-E coating last?
five to 10 yearsWeaver said that, based on what he has been told, “the newer low-e coatings are much more durable and more securely bonded to the glass than the older-generation low-e's.” He said the sealant on the glass should last five to 10 years, and the coatings should outlast that by several years.
How do you clean Low-E glass windows?
A mixture of one part vinegar with ten parts water Vinegar based glass cleaners have generally demonstrated an ability to provide a clean and streak free glass surface. Do not use ammonia based or alcohol based glass cleaners because these cleaners tend to leave visible streaks.
Do Low-E windows cost more?
Low-E coatings add up to 10% to the price of a window. If your windows are in relatively good shape but you'd like better insulation, you can buy and apply Low-E films to your windows.
What are the disadvantages of Low-E glass?
The major disadvantage of low e glass is it is expensive as compared to normal glass. For facades, which are in direct contact with sunlight, low e glass will trap the heat radiating from objects inside, which may lead to overheating of interiors.
Why do Low-E windows look green?
“If you had low-e material in a white 5-gallon bucket, it's translucent with a light green hue. Since that material is spatter-coated on insulated glass when an energy efficient window is being manufactured, more splatter creates more of that green hue.
Does Low-E glass go inside or outside?
Low-E Insulated units should be glazed with the Low-E facing on the outside, clear on the inside.
Can you use Windex on Low-E glass?
Cleaning Low E Glass Consequently it is recommended that Windex® glass and surface cleaner (clear liquid) is used as this will minimise smearing. Do not use ammonia based glass cleaners or alcohol based cleaners, as these will leave smears on the glass.
Does Low-E glass prevent sun damage?
Low-E Glass Blocks Most U.V. Rays Because it resists ultraviolet light, low-E glass prevents sunlight exposure from damaging carpets, draperies, sofas and other furnishings.
Does Low-E glass have a green tint?
Building code requires that replacement windows include Low-E glass, which is very efficient at blocking solar heat and reducing damage from UV light. Unfortunately, Low-E glass provides a blue/green coloration to the glass that many homeowners find unattractive.
What is the difference between E glass and S glass?
S-glass is a high performance glass fiber, distinguished from E-glass primarily by its higher silica content. S-glass typically contains the oxides of silicon, aluminum, and magnesium with the following mechanical properties: Density: 2.53 g/cm3 (157.9 lb/ft3) Tensile strength: 4,600 MPa (670 ksi)
What is solar control low E coating?
Solar Control Low-E Coatings (Soft-Coat): Solar control Low-E coatings are manufactured using the Magnetron Sputtering Vapor Deposition (MSVD) process, which means the coating is applied off-line to pre-cut glass in a vacuum chamber at room temperature. This coating, which is also referred to as “soft-coat,” needs to be sealed in an insulated glass (IG) or laminated unit. The soft-coat has lower emissivity and superior solar control performance. This coating offers the highest performing solar control.
What is passive low E coating?
Passive Low-E Coatings (Hard-Coat): The passive Low-E coatings are manufactured using the pyrolytic process, which creates a pyrolytic coating. The coating is then applied to the glass ribbon while it is being produced on the float line, which causes the coating to “fuse” to the hot glass surface. This fusion creates a strong bond, or “hard-coat,” that is very durable.
What is the best low E glass?
Are you unsure which type of Low-E glass is best for you? Before you decide, it is important to consider your area’s climate: 1 If you live in an extremely cold climate, the hard-coat Low-E glass may be an option for you, because it allows some of the sun’s short-wave infrared energy to pass through the glass. This helps to heat your home in the winter and allows the glass to reflect the interior long-wave heat energy back inside. 2 However, if you live in a cold to hot climate, which covers nearly all of the United States, the soft-coat Low-E glass is best, since it offers better UV protection and has a better overall U-value. The soft-coat Low-E coating also reflects the warm and cool air back into your room instead of allowing it to leak outside.
What is the SHGC in glass?
According to the Vitro (formerly PPG) Glass Education Center, there are several factors used to measure the effectiveness of glass with Low-E coatings: Solar Heat Gain Coefficient (SHGC): This is the fraction of incident solar radiation that is admitted through the window. This can be either directly transmitted and absorbed or radiated inward.
What is the role of low E coatings in window design?
Low-E coatings play a pivotal role in the performance of your windows, can save you money on energy costs and can drastically reduce fading to furniture and décor by blocking UV rays.
Why is low E glass used in winter?
If you live in an extremely cold climate, the hard-coat Low-E glass may be an option for you, because it allows some of the sun’s short-wave infrared energy to pass through the glass. This helps to heat your home in the winter and allows the glass to reflect the interior long-wave heat energy back inside. However, if you live in a cold ...
What percentage of energy loss is in windows?
When it comes to windows, the type of glass you choose is a critical consideration. Experts estimate that 70 percent of energy loss occurs in windows and doors, and that 90 percent of window heat loss occurs through the glass.
What is the number to renew windows in Connecticut?
Renewal by Andersen® of Connecticut is the leading window company in Connecticut and other areas near CT. You can call us at (860) 904-1931 or fill out this contact form to request a quote.
What is low E4 glass?
Low-E4 Sun Glass is the best option for homes in areas with hot, dry climates and intense sunlight. Using a special tint to control the amount of light getting in your home, replacement windows with this option boast the best rating when it comes to solar heat gain, helping you keep the home cool even during the hottest months.
Is Low E4 glass good for summer?
Unlike some windows where only cooling during the summer is a major concern, Low-E4 glass is designed to keep the home efficient all-year round. When compared to regular dual pane glass, Low-E4 Glass is 56% more efficient in summer, and 47% more efficient during winter.
Does Low E4 work on windows?
Windows with Low-E4 Smartsun glass do a great job of preventing the outside from affecting a room’s temperature. However, with Heatlock Technology, you get even better window performance. This unique technology reflects room-side heat back into the room, improving your home’s heating efficiency during the colder months.
Is Low E4 better than dual glass?
The flagship option for our Low-E4 Glass collection, Low-E4 Smartsun glass boasts 70% better efficiency than dual glass during summer, and 49% better efficiency during winter. What makes it even better is that replacement windows with Low-E4 Smartsun Glass also blocks 95% of UV light without sacrificing visibility.
What is the best glass for energy saving?
This glass is best for energy-saving windows, it is equipped with glass coating that effectively insulates the comfortable temperature inside your home. During the winter, the Low-E4 SmartSun glass will keep your home warm and cozy.
How to contact Andersen of Long Island?
Looking for high-quality double hung windows? Renewal by Andersen of Long Island got you covered. Call us at (631) 843-1713 or fill out our contact form to schedule an appointment. We proudly serve clients in Long Island.
What is the best glass for cold weather?
This glass option is best for cold areas and performs efficiently through adverse weather conditions. Smart sun glass blocks most of the UV rays, protecting your home without sacrificing and tarnishing your view outside.
What is low E4 glass?
Our Low-E4 glass is best for the ever-changing seasons and weather conditions. It keeps your home at a comfortable temperature during the heat or cold season. It can also shield your home against 84% of the harmful UV rays.
Why are skylights made of glass?
However, since skylights are exposed to solar rays 24×7, they can increase the temperature indoors. This is why skylights should be made using high-performance glass as it can block the heat from seeping in, offering a cooler ambience.
How does glass prevent overheating?
It prevents overheating of interiors by blocking out the solar radiation and offering thermal insulation. In this way, the heat entering inside isn’t trapped, so it promotes a relatively cooler atmosphere.
Why is glass everywhere?
Be it staircases, façade, balustrades, doors, windows, external walls, shower cubicles, or room dividers – glass is everywhere! However, due to its high surface emissivity, glass can absorb and emit the solar energy to the inside of the building – causing indoor overheating. To combat this, advanced glass technologies are used to manufacture ...
What is AIS Ecosense?
We offer AIS Ecosense, a series of high-performance glass that is ideal for the Indian climate. They are suitable for balancing between indoors and outdoors, offering cooler and brighter interiors.
What is AIS glass?
At AIS – India’s leading integrated glass manufacturing company, we offer end-to-end, 360-degrees solutions in a wide range of glass products and services; right from manufacturing, processing to fabrication, installation, and post-installation.
Why is high performance glass used in construction?
There is a significant reduction in the heat ingress and consequently, in the use of cooling devices. Yet, the building continues to receive optimum day light, inducing a brighter ambience.
What is solar control glass?
In solar-control glass, a special oxide coating is present that reflects away the harmful rays of the sun and prevents the heat from entering inside the structures. It also prevents solar glare, notorious for causing eye and skin infections.
What is Anlin window?
At Windowfits, we only use Anlin Windows and Doors, a top manufacturer for window and door replacements. Anlin offers high-performance Low-E glass and various glazing systems designed to help keep the heat out of your home.
Why is glass low E?
Clear glass, on the other hand, doesn’t. Instead, it absorbs tons of heat energy from the sun and keeps it inside your home, which is why your house might be hard to keep cool.
How much of your energy costs are due to your windows?
Did you know 25 percent of your energy costs can be due to your windows? That’s why many homeowners are starting to invest in replacing their old drafty windows.
Is low E glass better than clear glass?
Not only is Low-E glass windows more financially beneficial compared to clear glass windows, but they also have a better payback, making them more cost-efficient.
What is smart sun glass?
SmartSun™ glass gives you the benefits of Low-E glass, plus it helps shield your home from the sun’s heat and filters out 95% of harmful UV rays while letting sunlight shine through.
Why is extra pane of glass better for heating?
An extra pane of glass helps keep more heat in and cold air out, making this our most energy-efficient glass option. Perfect for colder climates where more months of the year are spent heating the home.#N#Ideal for: Northern Climates
What is low E4 glass?
Low-E4 Sun Impact-Resistant Glass is tinted for maximum protection from the effects of intense sunlight and provides all the benefits of Low-E4 glass.
What is tempered glass?
Decorative and Specialty Glass. Tempered safety glass is available on all products, and comes standard on all patio doors. Laminated glass is also available, for added strength, enhanced security and sound control. This glass helps reduce the volume of outside noise.
What is clear dual pane glass?
Clear dual-pane glass offers basic thermal performance. It's available on select Andersen products in situations where codes allow its use. See your local code official for requirements in your area.
What is low E4?
Low-E4 SmartSun™ Monolithic Impact-Resistant Glass* is reinforced with a clear plastic laminate sandwiched between two panes to resist impact, forced entry and unwanted noise. Choose from clear or gray.
Does Low E glass work in the summer?
Low-E glass reflects heat in the summer and helps keep heat inside in the winter, making this a good choice in climates where both heating and cooling costs are a concern. Available on: Low-E glass is available on all Andersen products.
What is low E window film?
Low-E window films, such as 3M Thinsulate Climate Control Window Film, can achieve similar insulating abilities of Low-E glass at a fraction of the cost.
What are the most inefficient features of a building?
There are many aspects that make a space efficient, such as LED lighting, improved insulation, and efficient windows . In fact, one of the most inherently inefficient features of a building is its windows. With that being said, Low-E glass and Low-E window films like 3M Thinsulate Climate Control Window Film are two solutions that can mitigate the issue of inefficient windows while improving occupant comfort. Since they both serve relatively similar functions, how will you know which one is right for your space?
How much does it cost to replace a low E window?
The national average cost of replacing existing windows with double-pane low-e glass is $40 to $55 per square foot , not including the cost of window frame replacement. The ROI for Low-E glass is typically around a 20- to 30-year range due to its high initial cost. Additionally, the installation process can be time consuming and disruptive to business. During installation, those within the space will have to relocate as the entire window or door will have to be replaced, hindering business operations from continuing within the space. Lastly, Low-E glass offers relatively low visible light reflectance, which could result in bothersome glare for occupants. Although Low-E glass is incredibly effective when it comes to improving energy efficiency and insulation, its installation isn’t always feasible with time and budget constraints. In these situations, you need a cost-effective and timely alternative.
What is EPD in 3M?
Energy Products Distribution (EPD) offers a tremendous breadth of 3M window film products and architectural finishes to address a variety of challenges encountered by architects, designers, and property managers. From heat mitigation or enhanced energy efficiency to improved protection or elevated aesthetics, EPD provides a product to meet your needs and delight your clients. Contact us at 410-844-7993 to learn more about how window film and architectural finishes can add value to your projects.
What is low E glass?
The purpose of Low-E, or Low-Emissivity, glass is to reduce the amount of ultraviolet and infrared light that enters through glass windows and doors, without entirely eliminating natural light from a space . This glass has a thin layer of coating that specifically reflects heat-causing wavelengths ...
Does low E glass help with energy bills?
We are all too familiar with the fact that once the temperature drops below a certain point and the heat turns on, our energy bills skyrocket. However, Low-E glass windows have emissivity values of 0.02 to 0.20, which means that 80% to 98% of the room’s heat is reflected back into the room during chilly winter months, regulating temperatures and lowering energy bills. Its ability to insulate against outdoor temperature fluctuations provides increased occupant comfort year-round. Although Low-E glass has considerable insulation ability, there are some downsides that must be considered.
Does 3M window film work?
When you apply 3M Thinsulate Climate Control Window Film to a single-pane window, it improves the insulation to be comparable to that of a double-pane window, and a double-pane window to that of a triple-pane. Not only does 3M Thinsulate Climate Control Window Film improve insulation in the cold winter months, but it also reduces solar heat gain in the summer, leading to energy savings year-round. In fact, many window films can reduce temperatures by up to 16 degrees Fahrenheit and cut energy bills by up to 10%!
