No, tempered glass by its nature will break upon any attempt to cut it or drill into it. Tempered glass has a hard outer surface holding together a softer inner surface. If the outer surface is compromised the glass will break into small pieces as intended. If modifications are needed, they must be done before the tempering process.

Absolutely, tempering glass is unquestionably worthwhile, especially in applications where strength, safety, and thermal resistance are paramount. When glass undergoes tempering, its overall strength, thermal shock resistance, and safety characteristics are significantly enhanced.

Tempered glass prices vary based on the glass types, glass thickness, and the volume of the purchase. Here at Dulles Glass, we provide a convenient solution for estimating the cost of tempered glass. Our innovative AI tool allows you to input the size of the tempered glass you need and you can easily obtain an estimated cost tailored to your specific dimensions. This approach ensures both ease and convenience in determining the price, as it takes into account the unique factors that influence the cost of tempered glass.

Tempered glass is designed to withstand high temperatures, making it a suitable choice for various applications. As a general rule, if the temperature does not exceed 290 ºC and there is no rapid change in temperature over 150 ºC, tempered glass is unlikely to break. This resilience makes it reliable for withstanding heat, eliminating concerns about a hot serving dish being too hot when placed on a glass tabletop.

Plexiglass is not actually glass and is usually a type of plastic or acrylic, so it differs from tempered glass in several key aspects. Unlike tempered glass which is treated to resist breaking into large dangerous shards upon impact, plexiglass can crack or break into larger pieces. These differences affect its usage and durability in different scenarios. Plexiglass is known for being lighter and is sometimes used as an alternative to tempered glass. However, it's essential to note that the softer plastic nature of plexiglass makes it more prone to scratches. Acrylic or plexiglass is also less resilient to direct sunlight/UV rays, and extreme temperatures and since it's a petroleum-based product, petroleum solvents, chemicals, etc. will leave marks or stain the surface. This can be a significant concern for homeowners with pets and small kids. Despite these considerations, plexiglass is valued as an alternative to tempered glass, especially when its distinct characteristics suit specific project needs.

The difference in appearance to the naked eye between tempered glass and annealed or plate glass is almost nonexistent. To figure out if the glass is tempered, the first and easiest way to recognize tempered glass is by checking to see if the glass has a tempered bug or stamp on it. Tempered glass typically carries a permanent certification label or logo. Tempered glass fabricators are legally required to affix a label on the tempered glass unless the customer explicitly opts out of having a label. You'll find this label near a corner of the glass panel, indicating that the glass meets safety requirements set by testing and regulatory agencies. Look for a printed or carved symbol on the glass, which shows the manufacturer's name and confirms compliance with SGCC standards. This stamped symbol also called ‘’temper bug” acts as solid proof that the glass has gone through the tempering process.
Another way to tell is to check for strain patterns or roller waves. For strain patterns look through the glass at different angles with light behind it, if you see very faint patterns through the glass these occur naturally during the tempering/quenching process. Roller waves can be found using a straight edge on the flat surface of the glass. A very slight wave pattern on the glass surface would indicate a roller wave; another thing that naturally occurs during the tempering process.

The process of glass tempering is irreversible. Before tempering, measurements need to be accurate with absolutely no doubt, any required alterations such as polishing, grinding, or drilling holes must be meticulously executed, as the glass cannot be manipulated once tempered. Despite its enhanced durability, tempered glass is not impervious to damage. Although tempered glass is designed to be more robust than regular glass, it’s still susceptible to breakage.

Tempering can be applied to various glass types, opening up a range of possibilities for customization to suit different purposes. Whether it's your standard clear glass or tinted, patterned, or even reflective glass, the tempering process enhances strength and safety without compromising the unique characteristics of each type. It's important to note that if the glass has had a film, coating, or any PVB applied to it that can not be tempered, this includes glass mirrors, back-painted glass, and laminated glass.

The standards for tempered glass are outlined in the industry specifications, primarily governed by ASTM C1048. These specifications pertain to heat-treated or tempered glasses, establishing the criteria for their production.

For heat-strengthened glass, the requirements include achieving a surface compression falling within the range of 3,500 to 7,500 psi. Notably, there is no specific requirement for edge compression in the case of heat-strengthened glass. It's important to note that glass thickness ranging from 1/8” through 3/4” is suitable for tempering.

By the International Residential Code (IRC), tempered glass is mandated in specific locations around residential properties deemed hazardous. The code outlines several scenarios where the use of tempered glass is required: including but not limited to glass next to walkways and ramps, doors, shower enclosures, guards and rails, stairs and ramps, certain windows, and wherever safety is a priority.

Tempered glass is available in a range of sizes, determined by the thickness of the glass. Generally, glass thickness ranging from 1/8 inch to 3/4 inch can undergo the tempering process. 
Dulles Glass offers a wide range of tempered glass thicknesses, these are as follows:
1/8, 1/4, 3/8, 1/2, and 3/4
Dulles Glass can temper most glass thicknesses up to 74” by 130”, however the maximum size of 1/8” thick glass is 50” by 50”. For larger sizes please contact us.

Tempered glass table tops are notably stronger than annealed glass, providing superior protection for furniture. With its elegance, sophistication, and easy maintenance, glass tables have become focal points in contemporary homes. Additionally, the dense and non-porous nature of tempered glass shields it from the effects of humidity, ensuring it has an avant-garde look over time. The mechanical properties, luster, and high-temperature resistance make tempered glass tables a reliable and safe choice. The variety of colors, patterns, and shapes further caters to diverse consumer preferences, making tempered glass an all-around practical and stylish option for table tops.

The difference between tempered glass and laminated glass in skylights lies in their safety features, soundproofing abilities, security aspects, cost, and energy efficiency. Skylights fitted with tempered glass are considered safe as the glass breaks into small, non-sharp pieces upon impact, facilitating easier cleanup. On the other hand, laminated glass skylights offer superior soundproofing and an added layer of safety as the glass stays intact even after breaking. Most skylights are best tempered and laminated.
 

Most exterior doors are made with tempered glass as a safety measure to minimize the risk of breakage and potential injury. Both exterior and interior glass doors, including sliding glass doors for patios and showers, are constructed with safety glass, either tempered or laminated, in compliance with residential building codes. This requirement ensures that the glass in exterior doors and most windows are stronger and more durable than the glass found in everyday kitchenware. The use of tempered glass in exterior doors enhances their resilience and safety, aligning with established standards to provide homeowners with a secure and robust entry point.

Placing an order for your customized tempered glass is a straightforward process. Simply visit the tempered glass page, where you can easily navigate through the options. Choose the desired shape, input your specific measurements, and proceed to make selections for the glass type, edge, and corner work, as well as the preferred glass thickness. The user-friendly interface ensures a seamless ordering experience, allowing you to customize the tempered glass to your exact specifications with just a few simple clicks.

The turnaround time for shipping at Dulles Glass varies depending on the items purchased and the specific delivery methods available for each item. For in-stock products, the delivery typically takes place within 1 business day. However, custom products are shipped within 1-3 business days. 

Certainly! Our team at Dulles Glass is dedicated to assisting in the customization process. Whether you have technical or design-related questions, feel free to reach out to us through live chat, email (info@dullesglass.com), or by calling us at (866) 452-7707. We're here to ensure a smooth and tailored experience for your new glass purchase.