ICF - Insulated Concrete Forms / Compound ICFWe are RASTRA, and we produce a high quality building system from recycled foam plastics. We pioneered the insulated concrete form (ICF) industry and invented and developed the Compound or Composite ICF (ICCF). RASTRA is the solution for this century to build environmentally conscious, energy-efficient buildings that provide a safe and healthy living environment.Over 9 million units in service worldwide since 1972.We did not inherit the Earth from our parents. We are borrowing it from our children.  -Chief SeattleInsulated Concrete Forms (ICFs) are formwork for concrete that stays in place as permanent building insulation for energy-efficient, cast-in-place, reinforced concrete walls, floors, and roofs.RASTRA Compound Insulated Concrete Forms (ICCF’s) are recognized as the ultimate building solution for economical and environmentally-friendly construction.The insulated concrete forms are modular units that are dry-stacked (without mortar) and filled with concrete. The insulated concrete forms lock are put together somewhat like Lego® bricks and serve to create a form for the structural walls of a building. Concrete is filled into the cavity to form the structural element of the walls. Usually reinforcing steel (rebar) is added before concrete placement to give the resulting walls flexural strength, similar to bridges and high-rise buildings made of concrete. The most insulated concrete forms (made of EPS = expanded polystyrene) are filled with concrete in 1-4 foot "lifts" to reduce the risk of blowouts like with other concrete formwork, however RASTRA invented the Composite Insulated Concrete Forms (ICCF). The ICCF’s are strong enough that walls are filled at story-height (10 to 12 feet) in one lift. After the concrete has cured, or firmed up, the insulated concrete forms are left in place permanently for the following reasons:Thermal and acoustic insulationSpace to run electrical conduit and plumbing. The wall material on either side of the forms can easily accommodate electrical and plumbing installations.Backing for gypsum boards on the interior and stucco, brick, or other siding on the exteriorRASTRA : The Original Insulated Concrete Forms (ICF)The common insulated concrete forms are made of foam insulation - expanded polystyrene (EPS), and are pre-formed interlocking blocks connected with steel connectors.However, Rastra insulated concrete forms and stay-in-place system is made of a lightweight composite material called THASTYRON, produced with 85% recycled expanded polystyrene (Styrofoam) and 15% cement.RASTRA is the most extensively tested Insulated Concrete Forms available today. While copycat Insulated Concrete Forms exist, these products did not undergo the rigorous testing, lack approvals and decades of experience in process and application.Compound Insulated Concrete Forms (ICCF’s) BenefitsRASTRA is a stay-in-place Insulated Concrete Form (ICF) System that is structurally strong. RAST