Floor Joist Insulation For Radiant Heat

Why use ecofoil floor joist insulation.

Floor joist insulation for radiant heat.

Up to r 21 and a radiant reflector maximum benefit application note. A radiant floor heating system needs a hot water supply a connection between the tubing and the plumbing and a pump to move the water from one to the other. 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. Reflects 96 of radiant heat find out how a radiant barrier works.

A floor joist installation presents some unique challenges not found in the wide open more flexible environment of the slab on grade installation. Check out our video radiant floor heat tubing installation in floor joists and read this page for a full description. 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. This application is ideal for the do it yourselfer who has a radiant floor system above or below a wooden joist sub floor.

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. Rfoil ultra cbf r 3 8 and underpad r 1 1. Installation instructions and illustrated drawings are recommendations only while proper local construction methods are the responsibility of the installer. Easy installation see below on how to install floor joist insulation versatile enough to fit between joists or attach directly underneath joists.

Rfoil 2222 series reflective r 13 0. Insulation in floor joists under radiant heat installation instructions. There are 5 methods with varying levels of benefit note. 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.

Very durable and can t be ripped or torn by hand. Add radiant heat to existing floors with retroheat s thin film heating panels. Ecofoil floor joist insulation is constructed of a double layer of polyethylene bubble insulation bonded to two radiant barrier metalized sheets. However with a few guidelines these challenges can be easily overcome.

Crete heat r 6 or r 10. We stock rfoil and crete heat insulation brands for use in concrete slab and between the joists pex radiant heating installations. For all methods inspect the structural integrity of the sub floor and make any needed repairs before installing infrastop.