5/16 vs 7/16 Impact Glass: Which One is Better?

When it comes to choosing the right impact glass for your home or building, you want to make sure that the glass is durable, strong and able to withstand any potential damage from natural forces such as hurricanes, wind-borne debris, and weather elements. That’s where impact-resistant glass comes in.

5/16 vs 7/16 Impact Glass: Which One is Better?

Impact-resistant glass is a type of laminated glass that has an interlayer made of polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA) between two sheets of tempered or annealed glass. This interlayer acts as a barrier to absorb energy and prevent shards of broken glass from flying into your home during severe weather conditions.

There are two popular thicknesses of impact-resistant glass, 5/16 and 7/16. In this article, we’ll explore the differences between these two types of impact-resistant glass and which one is better suited for your needs.

What is 5/16 Impact Glass?

5/16 inch thick impact-resistant glass consists of two panes of tempered or annealed glass with an intermediate layer made of PVB or EVA. The total thickness of this type of impact-resistant glass is 0.31 inches or approximately 8 millimeters.

Tempered glass undergoes a heating and cooling process that strengthens it by up to four times its original strength. It can withstand quick temperature changes without breaking apart easily. Annealed glass is standard float glass that has not been heat-treated like tempered or laminated glasses.

What is 7/16 Impact Glass?

7/16 inch thick impact-resistant glass also consists of two panes of tempered or annealed glass with an intermediate layer made of PVB or EVA. The total thickness of this type of impact-resistant glass is 0.44 inches or approximately 11 millimeters.

The extra thickness of 7/16 impact-resistant glass makes it stronger and more resistant to impacts. It is also better suited to larger openings and high-velocity hurricanes due to its increased strength.

Comparison between 5/16 vs 7/16 Impact Glass

Strength and Durability

When it comes to strength and durability, 7/16 impact-resistant glass takes the lead over 5/16 impact-resistant glass. This is because the extra thickness of the glass makes it stronger and more durable than its thinner counterpart.

In a wind-borne debris test, 7/16 impact-resistant glass has been shown to withstand category five hurricane winds with flying debris moving at speeds of up to 390 mph. On the other hand, 5/16 impact-resistant glass can only withstand category three hurricane winds with flying debris moving at speeds of up to 110 mph.

Cost

Since 7/16 impact-resistant glass is thicker and stronger than 5/16 impact-resistant glass, it is also more expensive. The cost difference between the two types of glasses can be significant, depending on where you purchase them from.

However, when considering the costs for replacing damaged or broken windows after a severe weather event, investing in higher quality, more durable impact-resistant glass can save you money in the long run.

Energy Efficiency

Both types of impact-resistant glass provide excellent energy efficiency benefits when compared to standard single-pane windows. However, again, there are some differences worth considering.

Due to its extra thickness, 7/16 inch thick impact-resistant glass has slightly better insulating properties than its thinner counterpart. This means that it can help keep your home cooler during hot summer months while retaining heat during colder winter months.

Which One Should You Choose?

Choosing between 5/16 or 7/16 inch thick impact-resistant glasses depends on several factors such as:

  • Your location
  • The size of your window openings
  • Your budget
  • The level of protection required

If your area is prone to frequent and severe weather conditions such as hurricanes and high winds, 7/16 impact-resistant glass can provide better protection for you and your home. If you have large window openings or require extra strength for some reason, then you should consider opting for 7/16 inch thick impact-resistant glass.

On the other hand, if you live in an area where severe weather is not a significant issue, or if your windows are smaller in size, 5/16 inch thick impact-resistant glass may be suitable.

Final Thoughts

When it comes to choosing between 5/16 vs 7/16 impact-resistant glasses, there are several factors that you need to consider. Both types of glasses have their advantages and disadvantages. What’s important is that you choose the type that suits your needs and provides the necessary level of protection while also being within your budget.

At the end of the day, investing in high-quality impact-resistant glass can be a wise choice for homeowners looking to protect their homes from potential damage caused by severe weather events.

FAQs

What is the difference between 5/16 and 7/16 impact glass?

The main difference between 5/16 and 7/16 impact glass lies in their thickness. 5/16 inch is thinner than 7/16 inch

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