A platform-based building system that brings engineering, manufacturing, construction, and long-term performance together into one repeatable process

What is PermaHaven™?
PermaHaven™ is not one material, one feature, or one upgrade. It is SteelHaven's integrated approach to residential construction. The system coordinates the parts of the home that usually get treated separately: structure, air sealing, insulation, slab strategy, ventilation, sequencing, and inspection readiness.
Each card links to its own dedicated page so visitors can go deeper on the part of the system they care about most.
Platform-Based System
01
What "platform-based" actually means — and how it's different from traditional field-built construction, where every home is reinvented on-site.
Reduced Risk & Variability
02
Fewer field decisions through engineered assemblies, disciplined sequencing, and defined inspection checkpoints at every stage of the build.
Built for Long-Term Performance
03
Beyond energy efficiency — durability, moisture management, air sealing, structural integrity, and what that means for long-term ownership.
Precision Engineering
04
Digital modeling, structural engineering, coordinated trade layouts, and disciplined documentation behind every SteelHaven home.
01
Platform
02
Engineering
03
Manufacturing
04
Construction
05
Performance
The PermaHaven™ sub-slab approach is designed to help passively mitigate soil gas before it enters the home while also contributing to thermal insulation, vapor control, and air sealing strategy.

01
Engineering
02
Manufacturing
03
Foundation
04
Panel
Installation
05
Roof Structure
06
Mechanical
Systems
07
Inspections
08
Move-In
Case Study
The Duo provided SteelHaven with a real-world opportunity to evaluate how the PermaHaven™ sub-slab strategy performs after construction.
Designed to meet modern energy, durability, and compliance standards from day one.
0.3 pCi/L
The Duo buyer test result
0.4 pCi/L
Typical outdoor radon average
1.3 pCi/L
Average indoor U.S. radon level
4.0 pCi/L
EPA action level
Buyer clarity
SteelHaven does not claim that any home is radon-free. Testing is still the only way to know the radon level in a specific home at a specific time.
The point is that SteelHaven designs the home to manage risk earlier, below the slab, inside the envelope, and through balanced ventilation.
View The Duo
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Faster Builds. Fewer Variables. Better Outcomes
