The Uponor Radiant Rollout mat is a network of cross-linked polyethylene (PEX-a) tubing for radiant heating and cooling. The mat consists of Wirsbo hePEX (oxygen barrier) or Uponor AquaPEX (nonbarrier), which is a tubing connected with ProPEX-engineered plastic fittings that are safe for burial in the slab and offer fast on-site construction. The length is customizable and widths include 4-1/2', 5', and a 10' double-mat option. •