Insulation Facing Description

 

FSK vapor barrier offers contributes significantly to the energy efficiency and longevity of buildings and HVAC systems. FSK stands for Foil-Scrim-Kraft, which refers to its composition. The facing consists of a layer of aluminum foil, a layer of fiberglass scrim, and a layer of kraft paper. This combination provides excellent barrier properties against moisture, vapor, and radiant heat, making it an ideal component in thermal insulation systems.

Aluminum foil layer provides reflectivity, reflecting heat away and contributing to thermal insulation. It also offers moisture resistance, helping to prevent the passage of water vapor.

Fiberglass scrim layer adds strength and tear resistance to the material, making it more durable and easier to handle during installation.

Kraft paper This layer provides a sturdy backing and helps to absorb any condensation that may occur on the surface of the aluminum foil.

Applications:

Attic insulation: It is often used as a facing for attic insulation to prevent moisture from entering the insulation and reducing its effectiveness.

Wall insulation: It can be used as a facing for wall insulation in both new construction and retrofit projects.

HVAC systems: It is used in ductwork and other HVAC components to prevent moisture from damaging the equipment and reducing its efficiency.

Crawl spaces: It can be used in crawl spaces to help control moisture and prevent mold growth.

Insulation Facing Technical Data

Composition:

Composition

Description

Value (English)

Value (Metric)

Foil

Aluminum

0.28 mil

7 micron

Reinforcing- MD

Fiberglass

1/2 inch spacing

12.5mm spacing

Reinforcing-XD

Fiberglass

1/3 inch spacing

12.5mm spacing

Adhesive

Polyethylene

-

-

Kraft

Natural

49lbs / 3000 ft2

80gsm

Properties:

Physical properties

Test Method

Value (English)

Value (Metric)

Basis weight

Scale

23.5 lbs / 1000 ft2

20.1595%gsm

Permeance (WVTR)

ASTM E96,

Procedure A

0.1 perm

5.75 ng/N.s

Tensile Strength-MD

ASTM D828

34 lbs / In

150 N/25mm

Tensile Strength-XD

ASTM D828

18.2lbs / In

80 N/25mm

Burst Strength

ASTM D774

58psi

40 N/cm2

Low temperature

Resistance

ASTM D1790

4 hrs @

-40℉ (-40℃)

Remains Flexible

No Delamination

Remains Flexible

No Delamination

High temperature

Resistance

ASTM D1790

4 hrs @

+240℉ (+116℃)

Remains Flexible

No Delamination

Remains Flexible

No Delamination

Emissivity

ASTM E408

-0.03

-0.03

 

Available Roll Width: 1.0m, 2.0m, 1.25m, 1.30m, 1.35m

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