Rails are installed first, then PEX tubing is snapped into the rail channels and finally, the concrete/gypsum or other thermal mass is poured on top.
PEX Rails allow for a much faster installation compared to traditional methods, since tubing
channels are spaced out evenly across the rail. Heat distribution is also improved, as even tubing
layout offers a more even heat distribution.
Q: How many PEX Rails will I need for my slab?
A: Typically, PEX Rails are installed at 2.5-3ft apart. 100ft of PEX Rails can cover area over 250 sq. ft.
Q: How do I secure them?
A: If you have a structural slab with rebar or wire mesh reinforcement, rails can be secured to the reinforcement with regular wire ties. When installing on top of foam board insulation, use PEX Foam Board Staples to secure the rail through pre-drilled holes.
PEX Rails are compatible with all PEX tubing types (A, B, C and some PEX-AL-PEX sizes).
They are pre-drilled with holes to allow installer attach them to wire mesh, rebar of styrofoam boards.
To attach PEX Rails to rebar or wire mesh, use wire ties or nylon cable ties.
To secure PEX Rails to styrofoam insulation, insert U-shaped PEX staples at a 45 degree angle into the
pre-drilled holes in the rails.