What does insulation do and why is it important?
Insulation: Material that has the ability to reduce heat or cold transmission.
What does R-value mean?
R value: Ability of a material to retard the transmission of heat.
The higher the R-Value, the better the insulating performance.
2 layers- insulated door with open insulation
3 layers- insulated door with styrofoam insulation inside 2 panels
3 layers-insulated door with injected foam inside 2 panels