An IGU (insulated glass unit) is a prefabricated window consisting of multiple panes of glass joined together with spacer bars and edge seals and filled with air or an inert gas such as argon or krypton to improve thermal and acoustic performance. Discover the best info about HaanGlas VIG.
Insulated glazing can help you meet design and aesthetic goals while saving energy and money in the long run. Discover how insulated glazing units (IGUs) operate and their potential advantages.
Reduces Heat Transfer
Windows are essential in providing natural lighting and access to the outside world, yet they also let out much-needed home energy, accounting for 30% of an average home’s energy loss! Luckily, insulated glazing (commonly referred to as IGUs) is a relatively recent invention that helps mitigate this energy drain.
IGUs consist of two or more panes of float glass separated by an inert gas such as argon or krypton and designed to decrease heat transfer between indoor and outdoor environments. Their primary purpose is to reduce heat transfer between environments while protecting furnishings such as sofas, curtains, carpets, and rugs from direct sunlight exposure and further UV ray exposure, thus protecting them from fading due to prolonged UV ray exposure.
Attaining this goal involves using a spacer bar constructed from aluminum material and equipped with holes to disperse inert gas within the cavity. Next, an internal seal must be used on the glass surface, while an outer seal on the IGU prevents moisture leaks.
The space between glass panels typically measures 1/2″ wide and is filled with either argon or krypton gas. Argon is often chosen due to its affordability and effectiveness in filling this small gap; however, krypton offers superior thermal properties, which may be helpful in more significant holes. Both gases are non-toxic, clear, and odorless.
Gas between the glass is also an efficient insulator, keeping heat inside during the winter and out during the summer. This helps maintain a building’s interior temperature while lowering energy bills. IGUs may help conserve energy further in tropical countries by blocking sunrays from entering during the day and heating it; however, this trapped heat in the summer could increase air conditioning costs significantly. IGUs may be further improved by adding a low-e coating that blocks most infrared radiation, enhancing their insulating properties, and cutting energy costs even further.
Reduces Noise Transfer
Noise pollution is an increasingly pressing concern in many parts of the world, but insulated glazing protects against exterior noises that might otherwise bother people living indoors.
An air gap in an insulated glass unit acts as a sound dampener, helping reduce the transmission of vibrations between panes of glass, thus significantly lowering external noise levels. Acoustic laminated glazing is, therefore, highly suitable for homes near railways or airports and properties located within conservation areas or listed buildings.
An IG unit equipped with two panes of 3mm glass has an STC rating of 26 and should effectively reduce low-frequency noise, such as traffic or neighbors. By increasing glass thickness or using different masses to block various frequencies, this rating will only improve. Furthermore, adding a third pane and gas space further boosts the STC rating and sound performance of an IG unit.
Laminate IG units improve their acoustic performance with polyvinyl butyral (PVB) layers that serve as hydrocarbon glue, making the glass much more challenging to break and thus increasing security.
Reduce vibrations from outside by increasing the overall glass thickness, adding PVB layers, or using an asymmetric double-glazing system with different glass thicknesses in each pane, as these strategies help improve IGU acoustic performance. Furthermore, installing gas spaces or switching out inert gas for sulfur hexafluoride gas can further boost performance acoustically.
Insulated glazing differs from traditional storm windows in that it can fit seamlessly into any frame design and doesn’t require secondary frames or screens to complete installation. Furthermore, its low maintenance requirements mean you can open and close windows from inside the house year-round, – perfect for wood-framed homes, as these frames may become susceptible to moisture problems or air infiltration issues that could cause damage around your windows. Nonetheless, insulated glazing may still be retrofitted into existing double-hung frames, but this option should only be considered if moisture problems exist due to air infiltration around your windows; however, this option shouldn’t be installed due to moisture problems caused by air infiltration from outside, either from its installation or removal!
Insulated glass reduces condensation on windows by maintaining warmer interior panes of your window, which prevents moisture from condensing inside and forming ice crystals. Furthermore, air can circulate more freely through an outer pane of glass to help regulate its temperature, further reducing condensation. Insulated glazing, often double- or triple-paned, further reduces condensation while helping regulate its temperature to keep exterior panes of glass cooler than interior spaces, giving these windows excellent energy efficiency ratings.
Insulated windows protect furnishings such as sofas, curtains, and carpeting from the sun’s rays by reflecting some of its light out instead of letting it pass through and heat interior spaces. This feature can prove especially useful in tropical regions where direct sunlight may fade fabrics over time.
Surface condensation on insulated glazing is an increasingly frequent phenomenon, particularly at night or early morning hours, caused by atmospheric conditions similar to what causes dew or frost to form on grass or cars in cold morning conditions. While surface condensation may appear detrimental to window quality and performance, it shouldn’t be taken as an indicator that installation was flawed; on the contrary, condensation is part and parcel of energy-efficient glazing solutions and should be seen as an indicator that your window has been installed correctly.
Condensation is an all-too-common issue that can be alleviated using thermally improved aluminum spacer bars such as SGG SWISSPACER. They significantly lower condensation risks by improving window insulating properties and cooling and ventilating sufficiently to lower humidity levels. In cold climates, condensation usually appears on the external face of windows where their outer glass has a lower temperature than internal air; it is easily removed with dry cloths or squeegees.
Reduces Energy Bills
While all homes will lose some heat through their windows and doors, double-glazed units with superior performance can significantly decrease this loss, helping lower energy bills while being environmentally friendly.
Insulated glass windows can help your home reduce condensation. Condensation on window surfaces is unsightly, can contribute to mildew growth that threatens human health, and needs to be prevented as much as possible. Insulated windows maintain an even temperature in their inner pane of glass while also stopping moisture from entering through frames.
Insulated glazing can not only serve to block heat transfer, but it can also act as an insulator of sound. By sandwiching air or gas between its layers of glass, insulated glazing creates an effective sound barrier to muffle outdoor noises caused by aircraft flying overhead, providing a quieter living environment in areas such as busy roads or neighborhoods.
Insulated glazing may seem costly upfront, but over time, its savings in energy costs will make up for themselves in reduced utility costs and added home value resale value should you decide to sell in the future.
Insulated glazing consists of at least two panes of glass connected by a spacer and filled with an inert gas, such as argon gas, which is inexpensive, clear, and odorless, though more costly options are also available, such as krypton or xenon gas.
Aluminum frames supporting insulated glazing units can be designed to reduce their thermal conductivity through low-conductivity structural polymers, thus increasing the insulating properties of glazing units and making them suitable for all climates.
Insulated glazing offers many advantages, but it’s essential to remember that if one of the panes of glass cracks, the inert gas may escape and compromise its insulating properties, meaning if your window has one that breaks, it should be immediately replaced as soon as possible.
Read also: How to Maintain a Metallic Epoxy Floor