Floor Joist Insulation For Radiant Heat

Check out our video radiant floor heat tubing installation in floor joists and read this page for a full description.

Floor joist insulation for radiant heat.

Crete heat r 6 or r 10. Since the foam fiber ratio would have to be significant for dew point control there it s probably better to use 1 5 2 of eps which is vapor permeable rather than foil faced. Installation instructions and illustrated drawings are recommendations only while proper local construction methods are the responsibility of the installer. Up to r 21 and a radiant reflector maximum benefit application note.

Works in both warm and cold climates. We stock rfoil and crete heat insulation brands for use in concrete slab and between the joists pex radiant heating installations. This 1 4 to 5 16 thick insulation provides superior protection against radiant heat transfer and also provides an effective vapor barrier preventing condensation which can cause mold. Very durable and can t be ripped or torn by hand.

For isolating the radiant over in unconditioned garage you ll need to add more fiber insulation fill up that bay and add rigid foam as a thermal break on the joists. Rfoil 2222 series reflective r 13 0. Rfoil ultra cbf r 3 8 and underpad r 1 1. Add radiant heat to existing floors with retroheat s thin film heating panels.

Reflects 96 of radiant heat find out how a radiant barrier works. Why use ecofoil floor joist insulation. This application is ideal for the do it yourselfer who has a radiant floor system above or below a wooden joist sub floor. Insulation in floor joists under radiant heat installation instructions.

However with a few guidelines these challenges can be easily overcome. The heating element is stapled up between the floor joists and then insulation is placed over it to efficiently direct the heat up to warm existing floors with luxurious radiant heat. At the project house the crew will spray foam insulation over the tubing between the joists forming a tight seal. For all methods inspect the structural integrity of the sub floor and make any needed repairs before installing infrastop.

A floor joist installation presents some unique challenges not found in the wide open more flexible environment of the slab on grade installation. Ecofoil floor joist insulation is constructed of a double layer of polyethylene bubble insulation bonded to two radiant barrier metalized sheets. Easy installation see below on how to install floor joist insulation versatile enough to fit between joists or attach directly underneath joists.