LandVac’s 15-year Vacuum Glass Warranty – Grounded in Testing

When investing in high-performance building materials, longevity and reliability are key factors. LandVac’s Vacuum Insulated Glass (VIG) units stand out in this regard, backed by an impressive 15-year vacuum glass warranty. Here’s why LandVac’s 25-year lifespan with no drop in performance is effective and trustworthy.

Extensive Monitoring Under Sunlight to Prove Vacuum Glass Warranty

One of the cornerstones of LandVac’s confidence in their VIG units is the extensive Monitoring Aging Test under natural sunlight. Conducted over eight years, from 2012 to 2020, this test involved more than 100 units exposed to real-world conditions. Remarkably, the pressure within the vacuum space remained steady throughout this period. This stability indicates that LandVac VIG units can maintain their insulating properties over many years of exposure to sunlight, ensuring consistent performance in actual use.

Rigorous Aging-Simulation with Xenon Lamp to Prove Vacuum Glass Warranty

LandVac’s R&D Department took the aging simulation a step further by using a xenon lamp to replicate sunlight exposure. Each 900-hour cycle under the xenon lamp equates to one year in a real environment. Over a grueling 22,500 hours, equivalent to 25 years, the internal pressure of the vacuum chamber was meticulously recorded. The results showed a stable relationship between pressure and radiation time, demonstrating that the VIG units can withstand prolonged exposure to sunlight while maintaining their vacuum integrity. This rigorous simulation provides a strong basis for the 15-year warranty, ensuring that the units will perform reliably over their expected lifespan.

Endurance in Alternate Temperature Tests

In addition to sunlight exposure, VIG units must endure temperature fluctuations. LandVac subjected their units to an Alternate Temperature Test, where one side of the glass experienced a consistent temperature, while the other side cycled between 25°C and 75°C, repeatedly for over 10,000 cycles. The results were impressive: the U-value, a measure of thermal transmittance, remained steady. This indicates that the VIG units can handle real-world temperature variations without significant performance degradation. Such resilience is crucial for ensuring long-term energy efficiency and comfort in various climates.

A Vacuum Glass Warranty Grounded in Evidence

The effectiveness of LandVac’s 15-year vacuum glass warranty is rooted in the comprehensive testing and validation of their VIG units. By maintaining stable internal pressure under prolonged sunlight exposure, demonstrating durability in simulated aging tests, and showing resilience in temperature fluctuation tests, LandVac VIG units have proven their longevity and reliability. This empirical evidence provides a robust foundation for the 15-year warranty, giving customers confidence in the product’s long-term performance.

Conclusion: LandVac’s 15-year vacuum glass warranty is more than a marketing promise. Their warranty is a commitment backed by science and rigorous testing. Whether it’s the steady performance under natural sunlight, the resilience shown in xenon lamp simulations, or the endurance in extreme temperature fluctuations, LandVac VIG units have demonstrated their ability to perform reliably over decades. For homeowners and builders looking for durable, energy-efficient glazing solutions, LandVac’s VIG units offer an assurance that stands the test of time.

See how LandVac is made and what makes it unique: More about LandVac