PEX tubing is a cross-linked high density polyethylene which offers exceptional utility in terms of diverse applicability. The tubing is made of the bridges that are formed through the linking of the molecules by undergoing a chemical process. This process of cross linking is greatly instrumental in providing a stable chemical character to the tubing in order to enable it to withstand extreme temperatures and pressures. This is the primary reason due to which the PEX tubing is increasingly being used in concrete slabs that emanates warmth in order to heat a room. This is used in the form of radiant heat tubing that is placed under the concrete slabs. This form of tubing is widely available in array of sizes that include 1”, ½”, 3/8” and ¾” which can be used pertaining to varied specifications of different installations.
Steps to be undertaken to install the PEX tubing in concrete slabs
Here are some essential tips and steps that can enable one to be aware of the procedure that is used in installation of the tubing in concrete slabs.
- The first and foremost consideration regarding the installation of the PEX tubing in concrete slabs is to have an appropriate layout of this form of tubing. In order to secure high effectiveness of the radiant heating systems, the layout of the tubing is of paramount importance. In order to ensure effective layout of the tubing, one should have a thorough knowledge about different areas and partitions where heating is not required.
- Prior to the installation of the PEX tubing, one should make sure that various plumbing and electrical requirements are fulfilled in order to assure secured installation processes.
- In order to assure the stability of the slab, one must make sure that it is adequately leveled so as to maintain its appropriate thickness.
- One of the most important steps involves the installation of the vapor barrier which is extremely imperative to prevent the absorption of the moisture by the concrete surface. The objective is to attain the zero permeability which can be successfully accomplished through the overlapping of the slab over the edges.
- Once the vapor barrier is installed, one should then make adequate arrangements for the installation of the radiant insulation.
- The next step would require one to make circuits using the layout of the PEX tubing.
- Finally, the PEX tubing can be installed by selecting an appropriate circuit in accordance with the coil of the concrete slab.
Once the process of installation of the PEX tubing is complete, one must check the pressure of the system to be sure of its proper functionality.
Jul 14th, 2010

