Slab On Grade Radiant Floor Heating

14 years later still in good shape and seems to keep house warm and comfortable.

Slab on grade radiant floor heating. From a radiant heating perspective it doesn t matter if the slab is actually at grade or is poured several feet below grade as part of a full foundation. The structural department recently designed and observed the construction of a post tension slab on grade foundation that incorporated a hydronic radiant floor system. The construction will be slab on grade and my question revoves around the proper approach for the installation of the tubing in the slab. Irc 2015 figure r403 3 1 shows a frost protected slab on grade but has no insulation under or above the slab i e.

We were told the only way to go was a wood engineered floor glued down. I am designing a hedronic radiant heat system for our new home. A slab on grade is defined as any concrete slab poured over excavated soil. I am planning on using a polaris hot water heater for heat source with a heat exchanger.

Cerazorb acts as a moisture resistant barrier that does not absorb water or swell under the effects of heat. Radiant floor heating concrete slab insulation. Although there is nothing special about a hydronic radiant floor system in the basement floor many builders and owners wonder if it can be done with a post tension slab. Radiant heating system design or installation mistakes that must be avoided.

Cerazorb is a 3 16 inch 5 mm thin synthetic cork underlayment that is highly recommended when installing a floor heating system over an existing concrete slab or under tile and stone. Martin holladay explains insulating a slab on grade in the energy smart details department. We wanted a wood floor and spent a lot of time talking to flooring experts. The workers in the photograph at page top where our concrete slab.

A slab on grade floor with a heating source either within or below it. In 1973 it has a concrete slab foundation with radiant heat water runs thru copper tubing within slab. No insulation between the conditioned space and the earth underneath. This article explains how to avoid some fatal mistakes when installing radiant heat in a concrete floor slab by describing an incompetent radiant heat floor installation along with an explanation of why things went wrong and how to avoid these errors.

The installation of a radiant heated floor slab begins by verifying the sub grade has been properly leveled and compacted. The climate the type of foundation whether the slab includes hydronic tubing for radiant heat and the severity of the local termite problem. Heated slabs on grade will feature hot water pipes or coils embedded within or beneath the slab to provide space heating. Although the heating system installer is probably not responsible for this aspect of construction failing to check for proper sub grade preparation could eventually compromise the embedded tubing circuits.