As Commercial estimation services providers we believe it is important for our clients to be mindful of the different materials used in glazing. In this article, we will be presenting an overview of the two types of glasses including Clear Tempered Glass and Insulated LOW-E Glass and how their pros and cons vary from each other.
Clear tempered glass and insulated Low-E (low emissivity) glass serve different purposes and have distinct properties.
Clear Tempered Glass:
- Properties: Made by heating glass and then rapidly cooling it, making it stronger than regular glass. It’s shatter-resistant and breaks into small, less dangerous pieces.
- Uses: Common in applications requiring safety and durability, such as shower doors, glass doors, and storefronts.
- Cost: Generally, less expensive than Low-E insulated glass, depending on thickness and size. Prices can range from $10 to $20 per square foot, depending on local market conditions.
Insulated Low-E Glass:
- Properties: Composed of two or more glass panes separated by a spacer and filled with an inert gas (like argon). The Low-E coating reflects heat while allowing light to pass through, improving energy efficiency.
- Uses: Ideal for residential and commercial windows, helping to reduce energy costs and improve comfort by maintaining indoor temperatures.
- Cost: Typically, more expensive than clear tempered glass due to its energy-efficient features and manufacturing process. Prices can range from $20 to $50 or more per square foot, influenced by factors like thickness, the type of Low-E coating, and the number of panes.
Cost Effect in the USA:
- Installation Costs: Insulated Low-E glass can lead to savings on heating and cooling costs, making it more cost-effective over time despite higher upfront costs.
- Long-Term Savings: The energy efficiency of Low-E glass can significantly lower utility bills, which may offset its initial higher price
ADVANTAGES AND DISADVANTAGES:
Clear Tempered Glass:
Advantages:
- Safety: Its strength and shatter-resistant properties make it ideal for high-traffic areas.
- Versatility: Can be used in a variety of applications, such as doors and partitions.
- Aesthetic Appeal: Provides a clear, unobstructed view, enhancing the design of spaces.
- Cost-Effective: Generally lower initial cost compared to Low-E glass.
Disadvantages:
- Energy Inefficiency: Does not provide insulation, leading to higher heating and cooling costs in New York’s varying climate.
- Limited Thermal Performance: Can lead to temperature fluctuations indoors, making spaces uncomfortable.
- No UV Protection: Lacks coatings to block UV rays, which can lead to furniture fading.
Insulated Low-E Glass:
Advantages:
- Energy Efficiency: Greatly reduces heating and cooling costs, which is beneficial in New York’s cold winters and hot summers.
- Improved Comfort: Maintains a more stable indoor temperature, enhancing comfort.
- UV Protection: The Low-E coating helps block harmful UV rays, protecting interiors from fading.
- Noise Reduction: Insulated glass can also provide better sound insulation, beneficial in a busy urban environment.
Disadvantages:
- Higher Initial Cost: More expensive than clear tempered glass, which can be a significant factor for budget-conscious projects.
- Installation Complexity: Requires more careful installation and handling, which may increase Labor costs.
- Limited Aesthetic Options: Some Low-E coatings may alter the appearance of the glass, potentially affecting design choices.
In New York, the choice between clear tempered glass and insulated Low-E glass largely depends on the specific needs of the project. For safety and immediate budget concerns, clear tempered glass may be preferred. However, for long-term energy savings and comfort, insulated Low-E glass is typically the better option, especially given New York’s climate challenges.
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