rFoil Reflective Insulation Barn Roof
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Specific application instructions are not yet available online, but you can download instruction sheets in PDF format right now. Just click the green button.

Get rFoil Reflective Insulation Installation Instructions

Installation of rFoil is very easy. You just need:

  • a utility knife or scissors
  • a tape measure
  • a straight edge (a 2x2 or 2x4 works great)
  • a staple gun (we recommend electric, so your hands don't get tired)
  • a plastic tape paddle or 4" wood block (only if you're taping seams -- not necessary for No-Tear)

When installing rFoil, it's important to remember that for rFoil reflective insulation to work properly, there MUST be a 1" air gap between rFoil and another building material (drywall, paneling, plywood, OSB, building steel, or even bulk insulation). However, this is not true for Concrete Barrier -- it does not need an air gap.

There can be 2 inches, there can even be 3 inches or more, but there should not be less than 1 inch. This one inch air gap can be achieved in a number of ways.

There are three basic types of installation in a home:

1. OVER or UNDER rafters, joists, or studs.

Some people install rFoil just by stapling it directly to the face of a rafter, joist, or stud, and then usually putting another building material over it. We don't really recommend this except in specific applications. They would be:

  • installing rFoil underneath an existing roof (the air gap is between the roof sheathing and rFoil)
  • installing rFoil underneath a crawlspace (the air gap is between the floor and rFoil)
  • installing No-Tear on the attic floor (the air gap is actually the attic)

2. BETWEEN rafters, joists, or studs.

There are two ways to install rFoil between two wood members:

1. Wrap it halfway around the stud or joist, stretch it across the cavity, and wrap it around the next stud/joist. It will look like the turrets of a castle when it's done.

2. Cut it, fit it between the joists, and staple it to the sides.

When installing rFoil in a wall, under a floor, or in a cathedral ceiling, it's usually necessary to cut rFoil to fit between the wood members.


3. Under concrete

Pouring concrete floors or installing Radiant Floor Heating systems is not something we recommend to Do-It-Yourselfers. If you are buying Concrete Barrier for your contractors to install, tell them to install it just like 2" foam board. However, they need to tape the seams with 2" vinyl tape (available from WE International), and they don't need to put down a vapor barrier. Concrete Barrier is a vapor barrier when the seams are properly taped.


Location: Home » rFoil installation instructions

WE International, Inc.
PO Box 97
Syracuse, Indiana 46567 USA
Tel: (574) 457-3066
Fax: (574) 457-5661
Email: weexport@we-intl.com