How to Compare Wood, Metal, and Hurricane Fabrics When Every System Speaks a Different Language
One of the most confusing conversations a property owner can have happens when three hurricane protection proposals land on the desk and every vendor uses a different metric to argue that their system is “stronger.” One talks about PSI. Another talks about wind speed. A third holds up a metal panel and says that because it is rigid, it necessarily resists more. A fourth plays an impact video.
The client ends up trying to compare numbers that were never built to measure the same thing.
I do not think the answer is to throw out all of those comparisons. Quite the opposite: we need a way to translate them so that someone who is not an engineer can make an informed decision. The point is to explain what each figure measures and which part of the system it represents.
That is one of the goals of our Technical Testing, Engineering & Certifications page.
Why the comparison is difficult
Wood, a metal panel, and a ballistic fabric behave in very different ways under load. A rigid panel tries to resist force by holding its shape. A flexible membrane can absorb part of the energy through controlled deflection. Wood may look solid, but its performance depends enormously on thickness, span, and the way it was fastened.
If we look only at appearance, metal usually “feels” stronger. If we look only at weight, a fabric can seem far too light to stop a projectile. If we look only at price, wood looks like the obvious choice.
None of those impressions is a measurement.
That is why we use PSI as a comparative tool, with one important caveat: we are not saying that a Category 5 hurricane applies 1,200 PSI of static pressure against a wall. We are setting the resistance of different materials next to a comparative projectile impact model so the client can visualize resistance margins in a consistent way.
What Mullen Burst Actually Represents
In textile systems, one of the useful tests is Mullen Burst. It measures how much pressure a material withstands before rupturing under a defined method. It is a repeatable way to compare the strength of different fabrics.
Within our line, HS-875 carries a reference of 875 PSI, HS-1250 of 1,250 PSI, and HS-1500 exceeds 1,500 PSI on Mullen Burst.
That does not mean HS-1500 “is a 1,500 PSI hurricane.” It means that, under the Mullen Burst method, the material has considerably greater resistance than lighter fabrics.
The value appears when we set those figures alongside other materials and alongside the impact model historically used to evaluate wood projectiles. In that comparative framework, wood lands around 120 PSI, metal around 410 PSI, and a standard polypropylene around 675 PSI.
The comparison is not perfect, because the materials work in different ways. But it does answer a very practical question: how much material resistance margin am I buying before I even begin to consider the anchoring and the geometry of the system?
Why metal does not win automatically for being rigid
I have run into the same intuition many times: “I would rather have metal, because it does not move.” It is understandable. Rigidity conveys a sense of security.
The problem is that during a hurricane we are not only interested in whether the element moves. We are interested in how it handles and transfers energy.
A rigid panel takes the load and carries it to its fastening points. A flexible fabric can deflect, spread part of the force over a larger surface, and deliver the load to the perimeter in a different way. Neither principle is automatically superior in every application. What matters is that the complete system was designed and tested to work that way.
In other words, movement does not mean failure. Uncontrolled movement can.
That principle is central to our patented anchoring system. The fabric is not installed in an attempt to turn it into a rigid plate. A calculated deflection is allowed, and the flexible connection takes part in how the load reaches the structure.
What PSI Does Not Tell You on Its Own
Here is the part I most want a client to understand: a 1,500 PSI fabric is not a 1,500 PSI system by the simple fact of existing.
The strength of the textile is a material capacity. The complete system includes seams, perimeter reinforcement, clips, screws, inserts, spacing between points, and the substrate of the building. When the fabric takes an impact, the force travels through every one of those components.
If one of them fails, the strength of the others stops being relevant.
That is why PSI has to be used as a tool for comparison, not as an excuse to ignore the rest of the engineering.
In a serious evaluation, after comparing materials I would ask how the system is anchored, what happens to the load after impact, and what documentation exists for the installed assembly. Our Certified Anchors & Component Integrity page goes deeper into exactly that point.
A Simple Example: Same Fabric, Different Connection
The historical documentation we use to understand this behavior showed something very interesting: a polypropylene fabric evaluated on its own sat around 675 PSI within the comparative framework, while a configuration using the flexible clip system raised the performance of the assembly.
That does not mean the clip chemically changed the fabric. It means it changed the way the assembly absorbed and distributed the load.
This difference is fundamental, because it shows that the client is not buying raw material. The client is buying a configuration.
Two companies can show you fabrics that look almost identical and still deliver systems with very different results, because of the perimeter, the clip, the anchor, or the spacing used in the field.
How I Would Compare Competing Proposals
If I had three quotes on the table, I would break the evaluation into four columns.
The first would be material: what fabric or panel is used, what strength test it has behind it, and what the verifiable figure is.
The second would be impact: what projectile test the system has passed, and at what speed.
The third would be connection: how the force travels from the material to the structure, and what anchors, screws, and spacings are used.
The fourth would be field history: what has happened to that system where it has been installed and exposed to real storms.
With those four columns, price per square meter stops being the only figure that is easy to compare and starts to carry context.
A cheaper system may be solving a different problem. A more expensive system may be oversized for the property. What matters is knowing what is being bought, and why.
The Advantage of a Product Line Instead of a Single Product
Hurricane Solution works with HS-875, HS-1250, and HS-1500 because not every property has the same exposure or the same consequence of failure.
A house several kilometers inland may not need the same material level as a hotel facade on the water. A small ground-floor opening may be resolved differently than large-format glass on an upper floor.
Having several strength levels lets us specify proportionally. It keeps us from turning every conversation into “the strongest product is the only correct one.”
To me, that is an important part of a responsible comparison: not selling strength for its own sake, but understanding how much margin the property actually needs.
Closing
Comparing wood, metal, and hurricane fabrics should not come down to which one looks most solid in a photograph. Each material behaves differently, and each vendor can present figures that appear impossible to compare.
PSI can be a useful tool for organizing part of that conversation, as long as what it measures is explained. Mullen Burst helps us compare textile strength. The projectile model helps give context to impact forces. After that, the engineering of the complete system decides how that strength actually reaches the building.
That is why the question is not “which material is stronger?” in isolation. The right question is “which complete system offers the right margin for this property, and can I verify how it reached that conclusion?”
Read the full analysis of testing and comparisons at Hurricane Solution →