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Foil scrim kraft faced insulation consists of a layer of 18u aluminum foil, a layer of reinforcing fiberglass scrim (5x5mm spacing), and a layer of kraft paper. This type of insulation is designed to provide thermal resistance and act as a vapor barrier. The aluminum foil layer reflects heat, the fiberglass scrim provides strength, and the kraft paper layer adds durability.

The combination of radiant heat barrier and vapor barrier boosts overall insulation performance, potentially leading to lower energy bills. The scrim layer adds strength and prevents damage during installation and handling. The kraft paper layer acts as a vapor barrier, helping to prevent moisture problems in the wall cavity. Foil scrim kraft faced insulation is suitable for various applications, including exterior walls, ceilings, basements, and ductwork.

Insulation Facing Properties:

Physical properties

Test Method

Value (English)

Value (Metric)

Basis weight

Scale

17 lbs / 1000 ft2

83 gsm

Permeance (WVTR)

ASTM E96,

Procedure A

0.02 perm

1.15 ng/N.s

Tensile Strength-MD

ASTM D828

17 lbs / In

75 N/25mm

Tensile Strength-XD

ASTM D828

17 lbs / In

75N/25mm

Burst Strength

ASTM D774

50.8psi

35 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

-0.05

-0.05

Insulation Facing Construction:

Composition

Description

Value (English)

Value (Metric)

Foil

Aluminum

0.72 mil

18 micron

Reinforcing- MD

Fiberglass

1/5 inch spacing

5mm spacing

Reinforcing-XD

Fiberglass

1/5 inch spacing

5mm spacing

Heat-Activated Adhesive

Polyethylene

1 mil

25 micron