Benefits of Low-E® Class A White Insulation:

  • Increases energy savings
  • Non-toxic, no fiberglass - no itching
  • Excellent vapor barrier
  • Installs easily with razor knife and foil tape
  • Superior thermal performance
  • Helps Deaden Sound
  • Flexible and durable
  • Improves insulation system performance
  • Insect/Bird resistant
  • Great for new construction or retrofits
  • Reflects up to 97% of radiant heat

New! EZ-Seal Tab

Patent Pending

Low-E® Insulation can be used in all facets of the building industry where conventional insualtions are used. It can be used alone or in conjunction with mass insulations for high R-system.

From large commercial buildings, light guage steel to post frame structures, Low-E® can be used to save money on heating and cooling costs. Low-E® Insulation is easy to handle and will not tear or puncture easily. It is flexible and seals tight around fasteners. With our Foil or White Foil facings and our EZ Seal Tab, Staple Flange or Trimmed edges to go with them, we have the products to make your building as energy efficient as possible while promoting a healthier indoor environment.

Low-E® Class A White Insulation Product Information

PRODUCT CODES: 4EFWT, 6EFWT (trimmed), 4EFWS, 6EFWS (staple flange), 4EFWZ, 6EFWZ (ez seal)


One side scirmless aluminum foil, one side scrimless white foil, laminated to polyethylene foam (1/4" nominal thickness).
Edges can be trimmed, with staple flange or EZ-Seal self taped flange feature.

WIDTH: 4', 6' respectively

LENGTH: 125' (stock size 4' width), 84' (stock size 6' width)

R-Value*: R-11.74 down; R-8.58 up; R-7.6 horizontal


FLAME AND SMOKE: ASTM E-84 Flame spread <25 Smoke developed <50



*R-value results were deterined from 0.75" airspace and includes air film resistance. Specific R-values for specific applications can be obtained from the Install Guide. To get a copy of the Install Guide, contact K'nA Distributors at 717-292-5448.

NOTE: Do not allow product to become damp or wet while rolled in sealed bag. Do not set product directly on wet or uncured concrete.

WARNING: Although ESP LOW-E® Insulation Products are all fire tested to ASTM and/or NFPA standards; it is recommended that they or any insulation material should not be exposed to open flame or other ignition sources of sufficient intensity during shipment, storage or installation.

CAUTION: Aluminum is an electrical conductor. Please use caution when working around electrical sources including overhead power lines. Carefully inspect electrical junction boxes and check for frayed wires before beginning installation.

Low-E® Class-A White Insulation is a versatile product for many applications and industries.

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