What is a Radiant Barrier and why is it important to use for insulating PEX?
A "Radiant Barrier" is also known as a "Low-E' surface. In PerformaFlex XT it prevents the radiant energy generated by the hot water in the PEX lines from exiting the PEX / Insulation system.
There are three ways to lose heat:
- Conduction, this is when heat passed from one object to another through contact. The wave effect of the corrugated outer casing along with the air space, prevents this from being a major factor.
- Convection, this is losing heat by air movement. There is very little air movement in PerformaFlex XT insulated pipe.
- RADIATION, this is the movement of energy as it radiates away from an object. The Low-E surfce of our insulation takes care of this form of heat loss.
It is best to think of the Radiant Barrier / Low-E Surface in PerformaFlex XT as a FENCE preventing the heat from getting away.