When a roofing product carries a Florida Product Approval or a Miami-Dade NOA, the approval is based on the product passing one or more Testing Application Standards (TAS) in the Florida Building Code's reference documents. Three of these — TAS 100, TAS 110, and TAS 114 — govern wind performance and are the standards your roof must meet.
TAS 100: Wind Driven Rain
The test method that measures how a roof assembly resists wind-driven rain at various wind speeds and rain intensities. The roof must keep water out of the interior under simulated hurricane conditions.
- What it measures: water penetration through the assembly under combined wind and rain
- Applies to: most asphalt shingle, tile, and metal roof systems
- Failure mode: water bypasses the field material and reaches the deck
A roof that fails TAS 100 will leak in storms. The wind-mitigation report does not measure TAS 100 directly, but the underlying products must have passed it.
TAS 110: Wind Uplift on Roof Components
The test method for individual roofing components — tiles, panels, shingles — against wind uplift.
- What it measures: the force required to lift a single piece of roofing material from its substrate at various wind speeds
- Applies to: tile attachment systems, shingle fastening, metal panel clips
- Failure mode: individual components lift off and fly away in wind events
A tile system that passes TAS 110 at 150 mph has been tested to that specific uplift force on individual tiles in the attachment pattern specified in the NOA.
TAS 114: Wind Uplift on Roof Assemblies
The test method for the entire roof assembly working together — deck, underlayment, attachment, field material — against sustained wind uplift.
- What it measures: the force required to lift the assembled roof system from the structure at various wind speeds
- Applies to: complete roof systems, often tested as proprietary assembly approvals
- Failure mode: large sections of roof lift off, exposing the interior to wind and rain
TAS 114 is the most stringent of the three for system-level failure. A roof system rated to 180 mph under TAS 114 has been tested to that pressure as an assembly, not just at the component level.
Why all three matter
A roof can have components rated to high wind speeds individually (TAS 110) and still fail at the assembly level (TAS 114) because of how the components interact. A roof can be wind-uplift compliant (TAS 110, TAS 114) and still leak (TAS 100) because the wind-driven rain finds a path through the seams.
A correctly specified roof has components and assemblies that have passed all three. The product approval documents will reference the specific TAS methods that the product has passed.
What this means for verification
When you receive the closeout package on a new roof, the product approval documents will reference the TAS methods passed. The reference is the documentation that your roof has been tested to the standard your code requires.
If a product approval does not reference any TAS method — or references only a portion of what the code requires for your zone — the product is not compliant for your installation.
A note on rated speeds
"Rated to 180 mph" can mean several different things depending on which test it references. Always look at the underlying test method.
- TAS 100 at 180 mph: the assembly does not leak at 180 mph wind-driven rain. A meaningful performance number.
- TAS 110 at 180 mph: individual components stay attached at 180 mph. Important but not complete.
- TAS 114 at 180 mph: the entire assembly stays attached at 180 mph. The most demanding rating.
Your product approval will specify which method and which speed.
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