BuildBlock Technical & Support for Insulating Concrete Forms

Find technical and installation manuals, code approvals, product specifications, BIM tools and more!

Find IRC & IBC as well as regional and local code approvals for BuildBlock ICF products.

Download BuildBlock product install manuals and guides for installation instructions.

BuildBlock provides a variety of engineering information for the United States & Canada.

This section provides commercial product specifications for BuildBlock Products.

BuildBlock design tools, BIM, and CAD details are available for multiple software design platforms.

Ensuring proper concrete design mix is crucial for completing a successful ICF pour.

Find information relating to the rigorous product testing of BuildBlock Insulating Concrete Forms.

Find technical and research articles, prescriptive engineering and whitepapers.

BuildBlock Technical Data
Expanded Polystyrene Density	1.5 lbs/cu. ft.
Average Thickness of EPS	2.5"/panel (5" total)
Steady State R-Value	R-21 Foam Value
Effective R-value: (concrete, form, air infiltration, and thermal mass)	R-24 to R-50
U-Value	U-.048
Actual R-Value	4.4 Per Inch of EPS
Thermal Mass (Form & Concrete)	6″ core: 72 lbs/sq. ft. \| 8″ core: 96 lbs/sq. ft.
K-Factor	.24 Per inch of EPS
Water Absorption	Less than 3% (ASTM C272)
Water Vapor	0.56 perms per 2.5″
Sound Class	STC Sound Class rating of 54 with 1/2-inch sheetrock both sides \| STC Sound Class rating of 51 with 1/2-inch sheet rock one side
Fire Wall	Firewall rating 5,000 to 12,000 lbs per lineal foot for 3 hours.
Concrete Compressive Strength	3000 psi
Concrete Pouring Temperature Range:	Down to 0°F (-18°C)