Rebuilding Right: The Truth About Fire-Resilient Homes
Don’t be misled by false claims or fall prey to predatory contractors. PHNX is here to set the record straight—noncombustible homes can be built quickly, efficiently, and affordably. Our proven technology and expertise make it possible to rebuild safer, stronger communities without delay. Trust PHNX to get it right the first time.
Myth #1
The technology does not yet exist to feasibly build noncombustible homes
FACT
PHNX has developed patent-pending technology, including the PHNX Longspan™ System, that enables the efficient and cost-effective construction of fully noncombustible homes. These homes meet the highest safety standards and exceed code requirements, offering a fire-safe alternative without the use of wood in structural elements.
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Myth #2
Any concrete home is noncombustible, and any contractor can build one.
FACT
Not all concrete homes are truly noncombustible. Only PHNX builds Type I homes, ensuring a completely wood-free structure. Beware of misleading claims from contractors or materials that don’t meet strict noncombustible codes. Is there wood sheathing in the roof and floors? Wood beams? Then it's not noncombustible. PHNX’s exclusive design guarantees compliance and unmatched safety.

Myth #3
Noncombustible homes are too expensive and take too long to build.
FACT
A PHNX Home can be completed in 8–10 months—half the time of traditional construction—at a similar cost. Innovations like the PHNX Longspan™ System reduce inspections, delays, and on-site trade coordination, saving both time and money without compromising quality.

Myth #4
Home hardening methods are enough for wildfire safety.
FACT
Home hardening strategies only reduce fire risks but don’t eliminate them. Wood-framed homes, even with fire-resistant upgrades, remain vulnerable. PHNX Homes go beyond hardening, using entirely noncombustible materials to provide unmatched wildfire protection and long-term savings, including reduced insurance costs.

PHNX Longspan™ Roof Assembly
(patent-pending)
To learn more about how to make your next home noncombustible
Know the IBC Construction Types by Fire Resistance:
Type I is further classified as Type IA or Type IB, with IA being the most stringent. PHNX is the ONLY company to build to Type IA standards – no others have the capability of building to Type IB or Type II, either – the other two highest levels of noncombustible standards. Why? The most challenging barrier to removing wood from the structure in residential construction, especially single-family, has been eliminating the plywood sheathing in the roof. It provides important lateral stability and there are no feasible noncombustible alternatives. This is where the patent-pending PHNX Longspan™ System comes in; our proprietary roof and floor framing system addresses the lateral stability problem and solves it, wood-free.
FIRE RESISTIVE
Highest Level
(Type I)
3 -4
Resistance Hours
All building elements are noncombustible
High-rise buildings, commercial, hospitals
THIS IS PHNX:
Made possible for the first time in single-family homes with our patent-pending PHNX Longspan™ roof assembly

NON-COMBUSTIBLE
(Type II)
1-2
Resistance Hours
All building elements are noncombustible
Mid-rise offices, hotels, school buildings
This has lower fire resistance. Other contractors still can’t build a Type II single-family home structure without the
PHNX Longspan™ roof assembly
ORDINARY
(Type III)
0-2
Resistance Hours
Exterior walls are noncombustible (e.g. brick); interior structural elements may be combustible
Warehouses, homes
Many builders claim noncombustible, but traditional wood framing and wood sheathing on the roof is tinder for flying embers...
THIS IS MISLEADING
HEAVY TIMBER
(Type IV)
0-1
Resistance Hours
Exterior walls are noncombustible; interior is of solid or laminated wood without concealed spaces
Various applications
Many builders claim noncombustible, but traditional wood framing and wood sheathing on the roof is tinder for flying embers...
THIS IS MISLEADING
WOOD FRAME
(Type V)
N/A
Resistance Hours
All building elements are combustible
Single-family homes
Traditional construction =
FULLY
COMBUSTIBLE