Glass Zone

Whether you’re looking for hurricane protection, increased security, energy-efficiency, noise reduction, or simply improved curb appeal, the type of glass you select plays an important role in the performance and look of your windows and doors. PGT offers an extensive selection of glass types designed to meet your needs for your home or commercial property.

Heat Strengthened

Heat Strengthened

Heat-strengthened glass is annealed glass that has been heated to approximately 1300°F, where it reaches its softening point, then cooled to create surface compression. This compression allows the glass to tolerate more rapid and uneven temperature swings.


Heat-strengthened glass is approximately 2 times stronger than annealed glass; however, if impacted, heat-strengthened glass will break into medium-sized shards.








Heat-strengthened glass 
breakage pattern      


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