Insulating Concrete Forms—ICFs—are rectangular interlocking blocks.

The blocks have walls of expanded polystyrene, connected by a web

structure, which creates a cavity for placing rebar and concrete. The ICFs

are stacked and interlocked, the window / door openings are located, rebar

is placed, the walls are straightened and braced, and then the concrete is

pumped into the cavity. The resulting structural wall has an effective R 34

rating with no conductive properties. It is ready for siding, rough electrics

and sheetrock.

ICFs are VERY cost effective for—

• Poured concrete walls over 96"

• Radius walls

• Fire ratings, exterior and interior

• Security and / or sound transmission

• Long lintel spans or unique shapes

• Unconventional designs

• Insulated basement walls for livable space

• Reducing construction time / number of sub-contractors

• CMU construction specified

• Exterior stone, brick, stucco or E.I.F.S. specified

• Bar joist / floor systems

• Energy conservation, i.e. radiant heat, solar, Geo-Thermal

• Mold, allergen and moisture control

• Seismic / wind speed resistance

ICF construction is inherently an alternative method—it does not

compare to standard foundation and wood wall construction. The wall

systems produced are essentially different and do not lend themselves to

square foot cost comparison. Insurers generally consider ICF walls as

masonry, which can lower insurance costs. Resale value is enhanced. ICF

construction is environmentally friendly, using less of our natural resources

to produce and every month reducing the ongoing expenses to heat and

cool the structure.

At R&D Contracting, our experiences with ICFs include all of the above

and many other unique applications. Please take a look at our portfolio for

some examples, or contact Dave Rynearson to discuss your project.