Direct Answer: To lower your Citizens Insurance premium, you need to build a 'Bunker in Disguise.' This means specifying a Hip Roof, Impact Windows, and verified Roof-to-Wall connections. ICF construction inherently ticks the hardest boxes on the mitigation form.
This is part of our Florida Financial Guide to ICF.
If you are building in Florida, you need to become intimate friends with a document called OIR-B1-1802.
This is the "Uniform Mitigation Verification Inspection Form."
It is the only thing standing between you and a $10,000 insurance bill.
Section 1: Roof Geometry (Hip vs. Gable)
The biggest credit available is for Roof Shape.
* Gable Roof: Has a flat triangular face on the ends. Wind hits this flat face and creates massive uplift pressure.
* Hip Roof: Slopes down on all four sides. Wind flows over it.
The Citizens Rule: To get the "Hip Roof" discount, your roof must be at least 90% hip shape. Avoid "Dutch Gables" or complex dormers if you want the maximum savings.
Section 2: Roof-to-Wall Connection
How is the roof attached to the house?
* Toe Nails: (Common in old homes). Worth $0 credit.
* Clips: Worth some credit.
* Single Wraps: Metal strap wraps over the truss. Good credit.
* ICF Advantage: In an Element ICF home, we embed the hurricane straps directly into the wet concrete at the top of the wall ("Top Plate"). The roof truss is literally bolted to the foundation. This creates a continuous load path that is virtually unbreakable.
Section 3: Opening Protection (The "All or Nothing" Rule)
Section 7 of the form asks about "Opening Protection."
This includes:
* Windows
* Entry Doors
* Garage Doors
* Skylights
The Trap: To get the credit (Level A.1), every single opening must be impact-rated or protected by a shutter.
If you have 20 impact windows but one cheap glass slider on the lanai, you get ZERO credit for opening protection.
Do not value-engineer the garage door. It is the largest opening in the house also.
Section 4: Secondary Water Resistance (SWR)
When a hurricane rips the shingles off your roof (which happens), what stops the rain?
* Old Way: 30lb felt paper. It tears instantly.
* New Way (SWR): A "Peel-and-Stick" self-adhering membrane that seals to the plywood deck. It is waterproof even without shingles.
The Credit: Checking "Yes" for SWR is an automatic discount. Ensure your roofer specifies it.
Why ICF Wins
Standard block homes can achieve these credits, but it requires extra hardware (straps, clips) and meticulous inspection.
With ICF, the "Wind Resistive" nature is built into the shell.
* The walls don't rack.
* The connection points are solid concrete.
* The sheer mass of the home lowers the "Probable Maximum Loss" (PML) model insurers run.
Builder Tip: Before you close on your construction loan, ask your insurance agent to run a "Mock Quote" based on the 1802 Form specs we provide. The number will shock you (in a good way).
