You can also use tape, but be sure and use a version compatible with insulation. Most professionals will use ⅜” flat staples, with either a mechanical, electric, or pneumatic stapler. The most common method is with a stapler. You can install the batting in a few ways. This allows for easy installation of the staples and makes for a more snug fit. This will allow the insulated area to extend beyond the heated area, which will divert the heat directly up.įiberglass batting is available in several widths, so most professionals will use one size larger than needed. Simply measure the space under the area to be heated and add 12” to the measurement in both directions. Insulating Electric Mat and Electric Single Wire Radiant Heat Here we will describe the process of insulating under these common radiant heating systems: Hydronic radiant flooring is best suited for concrete pads, like those found in a garage or basement.īoth methods require insulation to be installed under the floor to prevent the heat from radiating anywhere but up. Hydronic systems accomplish the same objective, but since these systems use both water and electricity, the installation process is much more involved. These systems are fairly simple to install and designed for the do-it-yourselfer. A good example would be the master bathroom on the second floor. These panels come in thicknesses of 1” (R-6 to R-8), 2” (R-10 to 12), and 3”(R-15), and will also include a vapor barrier to further retard heat transfer.Īs a rule, electric systems will be used when the floor to be heated is small, between floors, or both. In hydronic systems, insulated panels are usually used.

With electric systems, R-11 faced batting is standard. This often depends on where the home is and the local building code. How Much Insulation Do You Need For Radiant Floor Heating? Insulation is especially important in this type of installation, as the tubing would otherwise come in contact with the ground and lose the heat. Radiant floor heating of this type uses polystyrene tubing, called PEX, to circulate warm water throughout the pad. This type of insulation is used exclusively for radiant floor heating in a concrete pad. Best Lawn Care Service for Service Dogs.Lighted Magnifying Glass That Stays Put.

Radiant barrier insulation install