Homeowners know of insulated glass as argon gas sealed between two panes of glass to prevent heat loss from your home. In the garage door industry, insulated glass is two panes with air between them to create that same effect.
Manufacturers of garage doors do not use argon, as the constant movement of the doors, would cause the argon to leak and become ineffective quite quickly.
Yes you do.
If your garage is insulated, meaning it has fiberglass insulation and sheet rock, you may want to consider getting insulated glass with your garage door. Uninsulated glass can be a source of heat loss, and if climate control is important to you, you should consider insulated glass.
You may also want to consider insulated glass if you have any appliances in your garage that create heat because it can lead to condensation.
No you don’t.
If your garage is not insulated, meaning it’s constructed of cinder blocks, concrete or is detached, you don’t necessarily need insulated glass. Insulated glass helps with heat loss and if you don’t have insulation in your garage door, the glass will be pretty ineffective.
Appliances in your garage can create condensation on the inside of your garage windows. And insulated glass is a solution for that. But if you don’t have appliances that create heat such as a fridge or dryer, you most likely do not need insulated glass.