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.
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 |
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 |