Low-E Glass vs Solar Control Low-E Glass:
Glass is one of the most trendy and flexible construction supplies used in this contemporary era and it is due to its wide range of advantages such as constantly enhancing thermal and solar efficiency. ‘Low-E’ (low emissivity) and ‘solar control’ are significant expressions associated with energy optimization and proficiency.
Low e-glass and solar low e-glass are in vogue choices for windows, but they cater to distinct objectives. These are used to revolutionize the energy efficiency of contemporary buildings by lessening heat transfer via windows. Each of them has a core aim of minimizing energy consumption and upgrading indoor tranquillity but they differ in their explicit potential and applications. Awareness about their different characteristics is important for architect and homeowner seeking perfect match for their climate and energy efficiency requirements.
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Low-E(low emissivity) Rooflight Windows:
Low-E glass has an extremely thin coating of silver, zinc or indium tin oxide that is pellucid. The covering is reflective and done at small scale. The coating of glass is more narrow than a human hair. It reduces heat loss and heat gain through windows. The emissivity of a material is its efficacy in emitting energy as radiation. Low-E glass is not seamlessly transparent as it reflects some of the light providing a blue-greenish colour. It can also provide the window a slight haze. This is best for areas with mild
climates.
During the winter season, when the heat inside the house tries to evade the colder region outside, the Low-E coating reflects the thermal energy reverting it to the inside of the house, lessening the heat loss. The contrary occurs in the summer. The working principle of low e is just like a thermos. A thermos flask has silver coating that reflects the heat of liquid present in it. The temperature is maintained at constant level due to consistent reflection inside. Also, the low-e glass is created with a low emissivity of silver covering or low-e materials.
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Solar Control Rooflight Windows:
Solar control glass is a unique sort of glass that has different metallic coverings that lessens heat gain by blocking solar radiations. It also provides a maximum quantity of natural light in composure with lessening the thermal energy entering.
Solar low-e glass reflects infrared radiations minimizing solar heat gain. Solar control glass has a mechanism that is based on the processes of absorption, reflection, and transmission. This is adequate for areas with intense sunlight and high summer temperatures.
Low-e coating is implemented when the glass is in liquefied form. While solar control coating is implemented after the manufacturing of glass and it is applied in vacuum enclosures.
Advantages of Low-e And Solar Control :
Low-e glass and solar control glass do not have much difference between them. There are many advantages of them which make them an essential part of any building or industry.
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1. Energy Efficiency:
Low-E Glass: This is the most significant benefit of such glass windows and this makes the investment in them worth it. Low-e coatings has a foremost target of transmitting thermal energy inside and outside of the window. This makes the temperature of the room constant and provide cooling in summer and warmth in winter.
Solar Control Low-E Glass: Solar low-E window has a prime role in focusing on blockage of thermal heat gain specifically. In this way, by regulating the transmission of solar heat via a window, the demand for mechanical energy is much lessened.
2. Heat Reflection:
Low-E Glass: Low-E windows reflect infrared heat back into the room enhancing shielding and minimizing heating costs in winter season.
Solar Control Low-E Glass: Solar low-E windows reflect both infrared and a part of solar radiations thus facilitating improved protection against heat gain in intense climate or in buildings with more windows.
3. UV Protection:
Ultraviolet rays have many harms on humans in different ways such as it affects our skin in a drastic way. Excessive UV rays are also dangerous for fabrics or home furnishing.
Low-E Glass: It has the primary purpose of lessening heat transfer while presenting some UV protection to alleviate vanishing and damaging interiors.
Solar Control Low-E Glass: In addition to heat gain, it provides a barrier against UV radiations providing a safe and sound indoor environment maintaining aesthetics.
4. Visible Light Transmission:
Low-E Glass: It permits most of the visible light to enter the interior maintaining indoor comfort and aesthetics, in addition, to enhancing productivity.
Solar Control Low-E Glass: Although it permits visible light to get into the interiors, it has slightly lower visible light transmission in comparison to regular low-e windows as it depends on the different coatings applied.
Disadvantages:
Besides their never-ending advantages, there are some disadvantages that we are discussing here for your better understanding:
Cost: One of the cons of these is cost. These are expensive but last long. They can be used for 9 to 10 years and proper care can add more years to it. After almost 10 years only glass should be replaced to ensure efficiency.
Visibility: These windows are not seamlessly transparent and they have blue-greenish colour that looks like a haze. But it produces no barrier to the functionality of the glass but it can be an aesthetic for someone.
For more insights, check out our detailed article on the Benefits of Laminated Glass.
Which is Better For Your Climate?
While deciding the better one, you must consider your weather conditions:
1. If you are residing in an intensely cold climate, the low-e glass window is a better option for you as it permits short-wave infrared radiations to transmit to the inside via the glass window. It provides thermal energy to you in winter ensuring energy efficiency.
2. If you are living in a region where the climate is cold to hot, a solar control glass window is a better choice for you as it provides enhanced protection from UV rays gives back the warm and hot air inside the room and does not leak any energy.
There is a slight difference between them as these are targeting some different aspects. You can choose them according to your requirements. These have enhanced durability and life span and provide resistance to condensation and moisture providing long-term performance. We have explained all the possible variances between the two but if you have any confusion, feel free to reach out. We will be more than happy to help you.
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