Installing Radiant Floor Heating Over Existing Concrete Slab

It was poured over the ground without any barriers put down first.

Installing radiant floor heating over existing concrete slab. Radiant floor heating concrete slab insulation. How to add floor heating over existing concrete. The heat from the radiant heated floor rises to heat all surfaces in a room or home. Shimon rura nov 23 15 at 20 05 my house is a relatively newer construction and there s foam under the slab.

In the case of an existing uninsulated concrete slab rigid foam can be installed under the wire mesh to prevent heat loss downward. The major requirement is being able to add another layer to the top of the floor. A pre existing insulated slab can be utilized for it s thermal storage capabilities. You can step onto a warm and inviting floor even one built on a concrete slab by adding in floor heating.

While hot water and air based radiant. 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. From what i ve read the usual approach is. Radiant heat warms a floor s surface through electric mats or water tubing installed on the surface of a concrete floor and encased in an additional thin layer of concrete or thinset.

Existing slab foam for insulation vapor barrier subfloor with radiant tubing paths finish floor. Retrofitting radiant heating over a concrete floor is the hardest to do but it is possible. Some look like wire fencing that you roll out over the floor. I would like to install radiant heat on top of the floor.

There are several manufacturers of electric radiant floor heating systems that can be placed directly on top of an existing concrete slab.