Hybrid means the structure and the factory — not the picture.
ICF exterior walls on both floors + conventional/lightweight engineered floor system + engineered wood roof + factory-prefabricated MEP and interior components. The picture looks like a neighborhood house because the finishes are conventional. The wall, the factory, and the cost formula are not.
2 stories + small footprint + ICF exterior walls + engineered floor cassette + simple engineered roof + standardized components. Not “shingles = cheap.” The roof covering is architectural shingles because, for this factory, a simple engineered wood roof cassette is the lowest-cost complete roof when stacked on the two-story hybrid. ICF’s premium is primarily the wall system; the roof is generally outside that premium.
We are not trying to build the cheapest-looking house. We are trying to build the cheapest house to manufacture that still looks expensive. Finish packages do the looking. The skeleton does the repeating.
Wall stack
| Layer | What it does |
|---|---|
| Interior finish | Drywall on the ICF interior face |
| ICF interior EPS | Stays in place. Insulation + attachment. |
| Reinforced concrete core | The structural wall. Factory-kitted rebar. Ready-mix after erection. |
| ICF exterior EPS | Stays in place. Continuous insulation. |
| Exterior finish | Stucco, brick, stone, fiber cement — packages, not a different house. |
Roof stack
| Layer | What it does |
|---|---|
| Architectural shingles | Standard. Standing-seam is an upgrade. Concrete roof is FORTRESS only. |
| Underlayment | Synthetic + ice/water where required |
| OSB roof deck | On the cassette table |
| Engineered trusses | Simple hip or gable. No dormers, no valleys, no gimmicks. |
| Hurricane straps / brackets | Into the ICF concrete core. Load path: roof → wall → foundation. |
| ICF exterior wall (both floors) | Concrete core with EPS both faces |
| Foundation | Conventional reinforced concrete on the customer’s lot |
Five major manufactured systems
Modules A–J
The house is not a pile of random parts. The factory combines these modules into one serial-numbered product.
Nineteen systems, nothing held back
Not reinvented. Compacted subgrade, base, vapor control, reinforced slab/footing, anchors. Soil decides the exact design. We standardize the interface between the lot and the factory house. Prepared on the customer’s property.
What we use, component by component
| Component | What we’re using |
|---|---|
| Foundation | Reinforced concrete on the lot |
| Exterior walls (both floors) | ICF + reinforced concrete core |
| Rebar | Factory fabricated |
| 1st floor | Engineered economical system |
| 2nd floor | Engineered lightweight cassette |
| Interior walls | Lightweight framing |
| Roof | Engineered truss / wood cassette |
| Roof covering | Architectural shingles (standard) |
| Windows / doors | Purchased + factory integrated |
| Electrical | Factory prefabricated |
| Plumbing | Factory prefabricated |
| HVAC | Purchased equipment + factory ducts |
| Cabinets | Factory manufactured |
| Countertops | Purchased / cut to standard sizes |
| Bathrooms | Factory assembled packages |
| Exterior | Standardized luxury finish packages |
| Garage | Economical structure, not ICF |