Tempered, Laminated, and Ceramic
Safety glass is glass that has been toughened or laminated so that it is less likely to splinter when broken. We have also included a heat resistant ceramic glass for the use in wood stoves as a safety glass.
Tempered glass is four to five times stronger than standard glass and has enhanced thermal resistance. It is manufactured using an extreme heating and cooling process. The glass is hard and brittle. When it breaks it shatters into small cube like beads rather than sharp, hazardous shards. Tempered glass is not manufactured locally and must be special ordered. Tempered glass comes in different thicknesses and can be clear, tinted, frosted or patterned.
The edges of tempered glass are the weakest point but significantly better as compared to the edges of annealed glass. Edge strength is important to avoid thermal breakages and for point-fixed glazing. Quality of edge improves performance by up to 3 times over regular glass edges.
Tempered glass is used when thermal resistance, strength and safety are the primary considerations. Tempered glass is widely used in building, for shower and bath enclosures, patio doors, windows in entrance doors and sidelights, or any application where human contact and safety are considerations. When in doubt always refer to the building codes for the safety guidelines.
Laminated glass has a thin clear layer of polyvinyl butyral (PVB), sandwiched between two layers of glass. The interlayer keeps the layers of glass bonded even when broken, and its high strength prevents the glass from breaking up into loose dangerous shards.
Laminated glass is normally used when there is a possibility of human impact or where the glass could fall if shattered. Storefront glazing, skylights and windshields are typically laminated glasses. The PVB interlayer also gives the glass a much higher sound insulation rating.
We stock 1/4 clear and brz laminate, other thickness available upon request.
Ceramic Glass is a high performance, heat resistant glass perfect for use in fireplaces and woodstove doors. Actually it looks like glass but it is a transparent ceramic material. Technically it isn’t in the safety glass category but to make it easier to search for it we’ve included it here.
Neoceram or Pyroceram are manufacturers of 3/16 amber colored ceramic glass. It is used for replacement glass in wood stoves or fireplace doors. It can tolerate temperatures up to 1290° F – nearly three times the heat resistance of tempered glass.
When tempered glass shatters it will completely disintegrate into small cube-like beads. If it is installed in a wood stove or fireplace and it breaks there is an instant opening from the firebox to the room. The fire may no longer be contained within the firebox and can spread.
When Neoceram breaks it will crack but not fall apart. There is no immediate opening, giving time to allow the fire to die down. The glass can then be safely replaced.
If there is a shape, an arch top or radius corners, bring the broken pieces to us to be used as a pattern or remove the door and bring it to us, we will cut the glass to fit the door.