Flood Protection FAQs | Flood Barrier Pros
Get answers to common questions about flood barriers, installation, and protection in Florida.
Frequently Asked Questions
Uneven or porous thresholds compromise gasket compression, allowing seepage. We level surfaces to ±1 mm and seal with polyurethane to meet FEMA TB-3 requirements.
Epoxy mortar or polymer-modified cement provides smooth, non-absorbent surfaces. Avoid silicone caulk—it compresses unevenly under hydrostatic load.
We overlay with aluminum sub-plates anchored through to the joist. This prevents water wicking through grain and meets ASCE 24-14 §6.2.
Yes. Low-profile retrofit plates slide beneath weatherstripping and use removable edge gaskets. Ideal for historic homes.
Laser levels map the sill plane; we correct variances greater than 1⁄8 inch per 4 ft. Smoother thresholds ensure full gasket contact with Doorway Flood Panels.
Yes—5 years on bonding integrity and waterproof seal adhesion.