Up to r 21 and a radiant reflector maximum benefit application note.
In floor heating joist insulation.
Rfoil 2222 series reflective r 13 0 show more.
As long as you can see the floor joists from below then you can add radiant heat.
This is also known as the staple up radiant heating application.
The best way to do this is as follows.
Pro radiant floor wood joists.
When the basement or crawl space has vents installed insulating joist bays.
Installation instructions and illustrated drawings are recommendations only while proper local construction methods are the responsibility of the installer.
This application is ideal for the do it yourselfer who has a radiant floor system above or below a wooden joist sub floor.
Installing radiant heat between the floor joists is a very effective way to get heat into any space.
Insulation in floor joists under radiant heat installation instructions.
Adding radiant floor heating insulation is the most cost effective approach long term.
Joist bays the open spaces between floor joists are prime hosts for insulation under specific circumstances.
For all methods inspect the structural integrity of the sub floor and make any needed repairs before installing infrastop.
Insulation between floor joists floating floor insulation and even.
About radiant insulation radiant heat insulation is installed to prevent heat loss from a pex radiant floor heating system most commonly pex embedded in concrete slab or stapled underneath the plywood subfloor.
This application works well in new construction and is also a very popular retrofit option.
Fill the rest of the joist bay with insulation.