INSULATED COMPOSITE CONCRETE FORMS (iccf)

Built for a Lifetime: A Guide to Building with ICCF

Insulated Composite Concrete Forms (ICCF) are an advanced wall system that combines reinforced concrete with integrated insulation to create highly durable, energy-efficient structures.

What is ICCF

Similar to ICF, ICCF systems use formwork that stays in place after the concrete is poured. However, ICCF incorporates composite materials that enhance strength, simplify installation, and improve long-term performance.

The result is a monolithic concrete wall system with continuous insulation—designed for resilience, efficiency, and longevity.

Why Choose ICCF

Fire Resistance: Concrete does not burn, making ICCF homes highly resistant to wildfire exposure.
Energy Efficiency: Continuous insulation reduces thermal bridging and lowers heading and cooling costs.
Structural Strength: Reinforced concrete provides superior performance in seismic and high-wind conditions.
Durability: Resistant to rots, pests and moisture damage.
Long-Term Value: Lower maintenance and operational costs over the life of the home.

how to build homes with iccf

Roadmap to getting started

Transitioning to Insulated Composite Concrete Forms (ICCF) requires thoughtful planning during the pre-construction phase. Here is a simple roadmap to get started:

Work with your designer:
ICCF systems can be incorporated into most residential designs, but it’s helpful to plan for slightly thicker wall assemblies compared to traditional wood framing. Early coordination ensures proper detailing for structural performance, insulation continuity, and openings for windows and doors.
Connect with a manufacturer:
ICCF systems vary by manufacturer, with each offering unique composite form materials and installation methods. Manufacturers can provide design guidance, technical resources, and recommendations for qualified professionals familiar with their systems.
Engage with your contractor:
While ICCF construction is efficient, it benefits from contractors who understand concrete placement, reinforcement, and the specific form system being used. Many manufacturers offer training or certification programs to help builders deliver high-quality results.

who are the experts using iccf

Concrete Building Professionals

ARCHITECTS

Hubbell & Hubbell Architects

JTD Architects

Tso Construction

Check out more at: www.theperfectblock.com/architects-draftsman/

ENGINEERS

www.theperfectblock.com/recommended-engineers

CONTRACTORS

Pat Lawrence Construction

Millennium Construction * Marc Sinan

Tso Construction

Sevan Construction

MANUFACTURERS AND SUPPLIERS

Eco Building Systems Corp (Perfect Block) * Ryan Corona * info@perfectblock.com

Directory of Professionals

Building With Resilience is developing a directory of architects, engineers, developers, contractors, manufacturers and other professionals experienced in fire-resilient and noncombustible construction. If you or your organization would like to be considered for inclusion, please complete the form below. Submissions will be reviewed before publication.

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Frequently Asked Questions

Please reach us at spridmore@calcima.org if you cannot find an answer to your question.

Why should I consider ICCF over traditional wood framing?

ICCF blocks and the reinforced concrete they are filled with provide a 4-hour fire rating compared to a 1-hour rating for traditional wood frame construction. The construction is simpler than building with wood studs and wall components that require multiple fasteners, and an additional step to install insulation. ICCF blocks have built-in insulation and are not only resistant to fire, but are also inherently resistant to termites and water damage.

Is ICCF construction affordable?

Homeowners rebuilding in the Palisades and Malibu have been reporting that costs are similar or slightly higher than wood construction for that area. Mercury Insurance has been offering fire insurance discounts for this type of construction. The thermal mass of these walls can also help lower heating and cooling bills.

Is it difficult to get a permit for ICCF construction?

The process in LA County was initially slow due to some unfamiliarity with the system. But homeowners currently building in the LA Fire areas are not reporting delays for the structural parts of their home designs.

Concrete Building Professionals

This directory is provided for informational purposes only as a resource for those interested in concrete home design and construction. Inclusion does not constitute an endorsement or recommendation by Building With Resilience or its coalition partners, nor does it indicate that a business or individual is affiliated with or has approved its inclusion on this website. We do not independently verify or guarantee qualifications, licensing, experience, availability, or the quality of services provided. Users should conduct their own research and due diligence before selecting a professional or contractor.

Information may have been gathered from publicly available sources. If you are listed and would like your information corrected or removed, please contact us.

INSULATED COMPOSITE CONCRETE FORMS (iccf)

Built for a Lifetime: A Guide to Building with ICCF

how to build homes with iccf

Roadmap to getting started

who are the experts using iccf

Concrete Building Professionals

Directory of Professionals

Frequently Asked Questions

Concrete Building Professionals

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