ICCF construction site with concrete panels

ICCF Building Products

Built to Last. Built to Perform.

ADU Depot partners with Greenwood Building Materials to bring you the most advanced ICCF building system on the market — engineered for strength, efficiency, and lasting comfort.

What is ICCF?

Insulated Composite Concrete Forms (ICCF) are a revolutionary building system that replaces traditional wood framing with high-density, insulated concrete panels. The result is a structure that is stronger, quieter, more energy-efficient, and more resistant to fire, pests, and extreme weather.

Every ADU we build uses ICCF technology sourced through our partner Greenwood Building Materials — because we believe your ADU should be a long-term investment, not a short-term fix.

50%Less energy use vs. wood frame
4×Greater sound reduction
50+Year lifespan
Class AFire resistance rating

Our Product Line

Four integrated systems that work together to create a complete, high-performance building envelope.

ICCF Wall PanelsMost Popular

The backbone of every ADU Depot build

ICCF Wall Panels

Our ICCF wall panels are the primary structural element in every ADU we build. Each panel is composed of a dense concrete core sandwiched between two layers of high-performance insulation foam, delivering unmatched thermal performance and structural integrity in a single assembly.

  • R-30+ continuous insulation
  • Integrated vapor barrier
  • No thermal bridging
  • Fire-rated assembly
  • Pest and mold resistant
ICCF Block System

Modular precision for complex builds

ICCF Block System

The ICCF Block System offers a modular approach to concrete construction, allowing our crews to build complex shapes, corners, and openings with precision. Blocks interlock for a seamless, monolithic structure that performs as one unified system.

  • Interlocking modular design
  • Accommodates any floor plan
  • Rapid on-site assembly
  • Consistent dimensional accuracy
  • Compatible with all finishes
ICCF Roof Deck System

Superior protection from the top down

ICCF Roof Deck System

Our ICCF Roof Deck System extends the performance of the wall system to the roof plane, creating a fully insulated building envelope. The result is a structure with dramatically reduced heat gain in summer and heat loss in winter — lowering energy bills year-round.

  • Continuous roof insulation
  • Eliminates attic heat gain
  • Compatible with all roofing materials
  • Reduces HVAC load by up to 40%
  • Structural concrete deck
ICCF Floor System

A solid foundation for everyday living

ICCF Floor System

The ICCF Floor System provides a thermally broken, structurally superior floor assembly that eliminates cold floors, reduces sound transmission between levels, and provides a stable, long-lasting substrate for any finish flooring material.

  • Thermally broken slab design
  • Excellent sound attenuation
  • Compatible with radiant heating
  • Crack-resistant concrete mix
  • Works with tile, hardwood, LVP

Why ICCF Outperforms Traditional Construction

Disaster Resistant

ICCF structures withstand hurricane-force winds, seismic activity, and wildfire exposure far better than wood-frame construction.

Energy Efficient

The continuous insulation envelope eliminates thermal bridging, cutting heating and cooling costs by up to 50% compared to standard framing.

Quiet & Comfortable

Dense concrete mass dramatically reduces sound transmission — ideal for ADUs near busy streets or shared property lines.

Sustainable

ICCF uses recycled materials and produces less construction waste than traditional framing, with a much longer service life.

Pest & Mold Proof

Concrete and foam don't rot, attract termites, or support mold growth — eliminating a major source of long-term maintenance costs.

Higher Resale Value

Homes built with ICCF command premium resale prices due to their superior durability, lower operating costs, and disaster resistance.

Greenwood Building Materials

Sourced Through Greenwood Building Materials

All ICCF products used in ADU Depot builds are sourced through our trusted partner, Greenwood Building Materials. Their team provides product support, technical specifications, and supply chain reliability that keeps your project on schedule and on budget.

Ready to build with ICCF?

Talk to our team about how ICCF technology can make your ADU more comfortable, efficient, and valuable.