Insul-Tarp Technical Product Information

Insul-Tarp^® Insulation Materials and Construction

Insul-Tarp in-slab insulation features a unique design and construction that includes the following top-quality materials:

  ●  Cross-woven polyethylene for rugged durability

  ●  High density closed-cell foam

  ●  High density polyethylene bubble

  ●  Two layers of reflective aluminum

Physical Properties of Insul-Tarp Ground Insulation

Property	Test Method	Insul-Tarp
Average Thermal Resistance	ASTM C 518	R - 7.5
Tensile Strength and Elongation*	ASTM D 412	136 PSI
Tensile Strength**	ASTM D 751	45lbs-f/in.
Compression Set	ASTM D 3575	4.3 %
Bursting Strength*	ASTM D 751-73	90 PSI
Maximum Use Temperature		180°F
Minimum Use Temperature		-60°F
Water Vapor Permeance	ASTM E 96	.002 Perms

  * Denotes testing on bubble pack only

  ** Denotes testing on cross woven polyethylene only

Tested R Value (R-7.5)

Insul-Tarp was tested in accordance with ASTM C 518, Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus. See the Non-Radiant Testing PDF in the table below for a detailed summary of the testing procedure and results.

Performance Equivalent: R-10 (Under Radiant Heating Systems)

When calculating heat loads for radiant heating systems, a performance equivalent of R-10 can be used. Although this is not a tested R-value, field and laboratory tests support this number as a reasonable gauge for measuring performance. The Lab Test 1 and Lab Test 2 PDFs in the table below illustrate Insul-Tarp's radiant heating performance.

Insul-Tarp Specifications and Test Result Documentation

Insul-Tarp Product Documentation

»  Insul-Tarp Installation Guide
»  Insul-Tarp Product Specifications
»  Insul-Tarp vs. Bubble Foil and Foam Board
»  Insul-Tarp vs. Bubble Foil Test
»  Non-Radiant Test Data Sheet
»  Insul-Tarp Lab Test 2
»  Click here to Download Adobe Reader.

CUSTOMER COMMENTS

"The absolutely incredible thing about Insul-Tarp was the performance during heat up times of the slab. Projects done with 2-inch polystyrene seem to take up to 30 percent longer to get up to temperature.This product works better than any other product we have tried."   – Michael W., Hi Valley Supply

"When compared to the cost of styrofoam and the cost of installing and cutting styrofoam, it is much more cost efficient to use Insul-Tarp."   – Carlo S., United Plumbing

Insul-Tarp under slab insulation may be the easiest ground insulation to install and the most effective. For more information about Insul-Tarp or radiant floor heating, snow melting or roof de-icing solutions, call Warmzone today at 888.488.9276.