LandVac's Groundbreaking Vacuum Insulated Glass (VIG) with a U value of 0.45 W/m2K: A Game-Changer for Energy Efficiency Amidst Cost-of-Energy Challenges
By
PROF. DR. SAIM MEMON
Research Specialist in Vacuum Insulation
Email: Saim.Memon@landglass.net; Website: www.landvac.net
Overview
Once merely a dream concealed within the realm of research, that very imagination has now blossomed into a tangible reality. Imagine a window with a U-value of 0.45 Wm-²K-1, standing shoulder to shoulder with the well-insulated walls of a modern building that typically boast U-values in the range of 0.25 to 0.35 Wm-²K-1. This remarkable feat achieved by LandVac’s Vacuum Insulated Glass (VIG) signifies a leap in thermal performance that transcends the comparison to conventional single or double-glazed windows. What’s more, VIG doesn’t stop at exceptional thermal insulation; it also offers an impressive sound insulation rating of 36 dB. Let we delve into the captivating details of this groundbreaking innovation as follows.
First, let’s discuss what vacuum really is?
Surprisingly, our journey into the realm of vacuum has only just begun, revealing the astonishing beauty of what lies within Absolute Vacuum, Emptiness, or Nothingness. Yet, in this paradoxical exploration, we find that “Nothing Really Matters!” Vacuum emerges as an exquisite tapestry of emptiness, gracefully known as Vacuum Insulation, residing between two delicate sheets of glass, each bearing a whisper-light mass of atmospheric air. The vacuum’s pressure, a gentle dance of air density reduction, determines its essence. In this symphony of absence, we uncover the artistry of sound and thermal insulation. It is achieved by creating an environment with an extremely low pressure of less than 0.1 Pa, typically lower than the atmospheric pressure at sea level, which is about 101.3 kilopascals (kPa).
To create a vacuum, specialized equipment such as vacuum pumps is employed to remove air molecules, leaving behind an environment with minimal gas particles. Vacuum levels are often categorized into different classes, ranging from low to high vacuum, based on the pressure levels achieved. For insulation purposes, high vacuum is most relevant.
Well, how does the incredible power of vacuum transform into a thrilling source of insulation?
One of the primary applications of vacuum in insulation is in the realm of thermal insulation. Traditional insulation materials, such as foam or fiberglass, work by trapping air within their structure to reduce heat transfer. However, vacuum insulation takes this concept to the next level. By creating a high vacuum pressure less than 0.1 Pa between two panes of glass, heat transfer through conduction and convection is nearly eliminated whilst the heat transfer through radiation is minimised through low emittance coatings on the surface of glass. This results in an exceptional thermal and sound insulating properties with a significantly lower thermal transmittance, or we call it U Value, compared to conventional insulated glazed windows.
What is Vacuum Insulated Glass (VIG) or Vacuum Glazing?
Vacuum Insulated Glass (VIG) or vacuum glazing, represents a revolutionary advancement in the field of building construction and energy-efficient windows. VIG is an advanced window technology that achieves exceptional thermal insulation and soundproofing by creating a microscopically thin vacuum or extremely low-pressure space between two glass panes. Unlike traditional double-glazed windows filled with air or inert gas, vacuum glazing eliminates heat transfer through conduction and convection, resulting in an impressively low U-value and minimal energy loss. This innovation maintains optical clarity and transparency, making it ideal for energy-efficient building designs while significantly reducing heating and cooling costs. VIG’s ability to combine superior insulation and soundproofing makes it a transformative solution for creating comfortable, energy-efficient, and noise-resistant indoor environments.
No more imagination or simulations. VIG is a reality and this reality now comes with ultra-low U-value of 0.45 Wm-²K-1 with an impressive sound insulation rating of 36 dB. This remarkable feat achieved by LandVac’s Vacuum Insulated Glass (VIG) signifies a leap in thermal performance that transcends the comparison to conventional single or double-glazed windows.
What’s so special about LandVac VIG and What does this mean for you?
How LandVac’s VIG revolutionise in their product size?
The introduction of larger-sized LandVac VIG, measuring 1.5 meters by 2.5 meters, marks a remarkable breakthrough in the realm of building construction. Traditionally, manufacturers were limited to producing VIG panels no larger than 1 meter by 1 meter. This achievement holds particular significance, especially in the context of high-rise buildings where expansive glass surfaces are prevalent. The substantial enlargement of VIG dimensions not only enhances architectural design possibilities but also yields profound energy efficiency benefits. By effectively minimizing heating and cooling energy losses, at these expanded sizes, approaches a level of thermal performance nearly equivalent to that of conventional walls. This advancement embodies a pivotal step toward sustainable, energy-conscious building design and signifies a notable advancement in the field of construction industry.
How LandVac’s Lead-Free Edge Seal Revolutionizing Building Components for Sustainability and Compliance?
The use of lead-free materials in building components has long been a coveted objective, driven by regulations and environmental concerns. Given that the utilization of lead in construction is strictly regulated, with allowable concentration limits not exceeding 0.1 weight % in homogeneous materials, in accordance with RoHS (Restriction of Hazardous Substances) Regulations, it has posed a significant challenge for the adoption of certain innovative technologies. One such debate has centred around the use of lead in the edge seal of Vacuum Insulated Glazing (VIG). However, LandVac’s VIG has emerged as a groundbreaking solution, revolutionizing the landscape of VIG construction. Notably, LandVac’s VIG features a lead-free edge seal, setting a precedent that aligns seamlessly with the highest standards for building materials. This remarkable advancement not only meets regulatory requirements but also underscores LandVac’s commitment to environmentally friendly and sustainable construction practices, ensuring that the building industry can continue to evolve while prioritizing safety, quality, and eco-consciousness.
How LandVac VIG maintains vacuum pressure with getters?
The incorporation of getters within vacuum insulated glazing (VIG) is of paramount importance, as it serves multiple crucial functions that ensure the long-term performance and effectiveness of these innovative VIG windows that minimise degradation of vacuum pressure. Getters play a pivotal role in sustaining the vacuum pressure between the glass sheets. Over time, there may be minuscule amounts of residual gases left inside the sealed VIG unit, despite rigorous evacuation procedures during manufacturing. These residual gases can compromise the thermal insulation properties of the VIG. Therefore, the LandVac VIG product incorporated getter in each unit that effectively absorb any remaining gas molecules, thereby maintaining the desired vacuum pressure that is essential for superior thermal insulation.
How LandVac’s VIG minimises condensation which is more common to single- or double-glazed windows?
VIG minimizes condensation more effectively than single or double-glazed windows due to its unique design and superior thermal performance. This is because the core feature of VIG is the creation of a vacuum or extremely low-pressure space between two glass panes. In this evacuated space, there is virtually no air, which means there are significantly fewer gas molecules available for condensation to occur. Unlike in single or double-glazed windows, where there is still some air present, VIG’s vacuum environment greatly reduces the potential for condensation. During the manufacturing process of VIG, the space between the glass panes is thoroughly evacuated to remove any residual air and moisture. This careful evacuation process significantly reduces the initial moisture content within the glazing unit. In contrast, conventional windows may have more moisture trapped within their sealed airspace, making them more prone to condensation. LandVac’s VIG units are sealed meticulously to maintain the vacuum. These seals are designed to prevent air and moisture infiltration over time, further reducing the risk of condensation within the unit. In contrast, the seals in traditional windows may degrade or develop leaks, allowing humid air to enter the airspace and promote condensation. VIG’s condensation resistance is consistent and reliable throughout its lifespan, as long as the vacuum remains intact, which is why getters play a significant role.
Finally, The LandVac’s VIG Sound-Reducing Magic.
The ceaseless hum of a bustling metropolis, a symphony of life echoing through the streets, can be both invigorating and exhausting. For those who dwell in the heart of cosmopolitan cities like London, New York, or Dubai, the constant onslaught of noise pollution can become an inescapable part of daily life. Amidst this urban cacophony, the plaintive wail of ambulance sirens pierces through the city’s rhythm, a stark reminder of the challenges posed by noise pollution. However, there is hope, and it comes in the form of innovative technologies like LandVac’s VIG, with its impressive 36 dB sound insulating rating, can transform urban living by minimizing noise pollution and enhancing the quality of life.
I cannot imagine because I lived in central London but let, we all Imagine residing in a charming house in central London, a cozy refuge from the bustling city outside. However, the charm begins to fade when the decibel levels of the city’s soundscape rise to a crescendo. The constant traffic, honking horns, and animated chatter of pedestrians become a daily companion. Yet, amidst the symphony of urban life, there is one sound that cuts through like a knife – the heart-pounding blare of ambulance sirens. In a densely populated city like London, where time is of the essence, these sirens are essential for saving lives. However, their relentless frequency can turn them into a relentless source of disruption and distress for those who call the city home.
The issue of noise pollution is not exclusive to London. It plagues cosmopolitan cities worldwide, from the bustling streets of New York, USA, to the extravagant urban landscapes of Dubai, UAE, and many others. The ever-increasing population, traffic congestion, construction activities, and the perpetual din of urban existence have given rise to a relentless cacophony that disrupts the tranquillity of urban dwellers.
Amidst this urban turmoil, innovative solutions like LandVac’ VIG can come to the rescue. LandVac’s Vacuum Insulated Glazing (VIG) stands out with its remarkable 36 dB sound insulating rating. VIG is designed to create a near-perfect vacuum between glass panes, significantly reducing the transmission of sound from the outside environment to the interior of a building. This transformative technology acts as a barrier against urban noise pollution, allowing residents to enjoy peace and quiet within their homes, even in the midst of a bustling metropolis.
Are you ready to unlock the future of energy-efficient building design?
Look no further than Vacuum Insulated Glazing (VIG) by LandVac, a groundbreaking technology that’s transforming the way we think about windows and insulation. If you’re a customer or a building contractor eager to harness the power of VIG, our sales team is here to guide you every step of the way. And if you have any technical questions or seek expert advice, don’t hesitate to reach out to the author of this article, Professor Saim Memon. As a distinguished research specialist in vacuum insulation, Professor Memon possesses the knowledge and expertise to address all your inquiries via Saim.Memon@landglass.net. In fact, he can even assist you in designing a building featuring VIG that can achieve the coveted status of a Net Zero Energy Building or Net Zero Energy House. Don’t miss out on this opportunity to revolutionize your construction projects and contribute to a greener, more sustainable future. Contact us today and embark on a journey towards energy efficiency and innovation!
