CertiFoam 40 or 60

Utility Line/Soil Insulation
Under Highway Insulation

l Economical protection from freezing.
l Reduces frost heave action.
l High compressive strengths.
l Excellent moisture resistance.
l Resists freeze/thaw damage.
l Best long-term insulating value.
l Meets or exceeds AASHTO M230-70

PHYSICAL PROPERTIES

BOARD SIZES

ASTM
Test Method

CertiFoam
40

CertiFoam
60

Insulation Properties

Thermal Conductivity, k

(Btu/hr. sq. ft. F)

5-Tear Aged (Design)

Values

@ 25° F mean

@ 40° F mean

@ 75° F mean

6-Month Aged Values

@ 75° F mean

C 177-76

C 518-76






0.178
0.185
0.200

0.192






0.178
0.185
0.200

0.192

Water Resistant Properties

Water Absorption

(% by volume)

Water Vapor Permeance

(perm) Maximum

D 2824-69

C 272-76

E 96-80

1.0

<0.1

1.0

<0.1

1.0

Mechanical Properties

Compressive Strength, (Typical)

(lb./sq. in.)

Minimum (Specification)

Value (lb./sq. in.)

D 1621-73

Miscellaneous Properties

Maximum Recommended

Use Temperature (°F)

Linear Coefficient of

Thermal Expansion

(in./in. °F)

D 696

165

3.5x10^-5

165

3.5x10^-5

Thickness	Width	Length
1 1/2"	24"	96"	Square Edge
2"	24"	96"	Square Edge

R-VALUES

Mean Temp.	1 1/2"	2"
25° F	8.4	11.2
40° F	8.1	10.8
75° F	7.5	10.0

Caution: Like many construction materials, CertiFoam brand insulation is combustible and may constitute a fire hazard if improperly installed or stored. Although it contains a flame-retardant additive to inhibit ignition from small sources, it should not be exposed to open flame or other ignition sources during shipping, storage, installation or use. Recommendations of fire and building codes should be followed.

Caution: CertiFoam brand insulation when used under highways may cause differential icing. Contact DiversiFoam Products for information regarding design details or special application conditions.