Insulating concrete forms by Reddiform. Insulated concrete walls, floors, roof and foundations

ReddiForm is a one-piece, all-foam, screen grid block made entirely of expanded polystyrene (EPS) and shaped to appear as an elongated cement block. The upper and lower edges have "teeth" for securely interconnecting adjacent blocks. It comes in two basic sizes:

The blocks are symmetrical so that they may be placed without regard to top or bottom, front or back, left or right.

Four configurations are available in each size: Standard, Corner, Closed, and Pilaster. Also we offer optional plastic fastening strips and no-tie rebar chairs.

The ReddiForm block weighs only three pounds and provides the equivalent wall surface of 4.5 cement blocks. Steel reinforcement bars (rebar) are placed in a series of five vertical cavities (or cells) and one horizontal cavity (cell) per form. The lightweight forms fit together with a patented interlocking system (much like the child's toy "Lego" building blocks). When the forms are stacked into a structure, the cavities (cells) create vertical columns and horizontal beams. When the structure is completed, the forms are filled with concrete and allowed to set; forming an insulated steel reinforced concrete "column and beam" truss system.

The greatest stress to most insulated concrete (ICF) walls occurs at the joints between blocks during the pouring of concrete. Blowouts can happen to this most vulnerable section of the form at this precarious time. ReddiForm's unique and patented "post and channel" method of interlocking joints has proven so strong that a "blowout" at this critical point has never been experienced.

The ReddiForm design actually allows the weight of the onrushing concrete to slightly "pinch" the channels of the forms together, creating a very strong, tightly sealed joint. Walls as high as 19 ft. have been poured at a single time without a blowout. ReddiForm warrants pours to 10 feet (some other products are only warranted to 4 feet).

ReddiForm Insulated Concrete Forms are in compliance with the following organizations and codes:

BOCA Compliance Report # 90-81
Dade County
HUD Department of Housing and Urban Development
FHA Federal Housing Authority
Oregon Department of Energy
ICBO Evaluation Service Report No. 5194
Prescriptive Code
International Residential Code
ARPE (Puerto Rico)

While obtaining Dade County approval, which involves the most stringent hurricane requirements in the country, ReddiForm passed the Dade County impact test in which eight 2x4's were fired at 100 mph at an eight foot ReddiForm wall. There was no penetration or significant damage to the wall.

Construction Technology Laboratories (CTL) conducted a mass performance analysis of a typical insulating concrete foam wall. Using the ENVSTD compliance program for ASHRAE/IES 90. l-1989, CTL predicted that, in most U.S. cities, a wood frame house would need to have an R-value greater than R-50 to provide the equivalent performance of an insulating concrete form wall. Conventional wall systems are typically rated R-9 to R-l3.

ReddiForm is engineered to meet or exceed building codes of SBCCI and CMHC.