{"id":26711,"date":"2026-05-08T02:08:50","date_gmt":"2026-05-08T02:08:50","guid":{"rendered":"https:\/\/skwroof.com\/stone-coated-metal-roof-coastal-homes-salt-air-corrosion-protection-2026\/"},"modified":"2026-05-08T02:08:50","modified_gmt":"2026-05-08T02:08:50","slug":"stone-coated-metal-roof-coastal-homes-salt-air-corrosion-protection-2026","status":"publish","type":"post","link":"https:\/\/skwroof.com\/es\/stone-coated-metal-roof-coastal-homes-salt-air-corrosion-protection-2026\/","title":{"rendered":"Stone Coated Metal Roof for Coastal Homes: The Complete Salt Air & Corrosion Protection Guide (2026)"},"content":{"rendered":"

Introduction: Why Coastal Roofing Is a Different Challenge<\/h2>\n

Owning a home near the ocean is a dream for millions \u2014 but coastal living comes with a unique set of challenges that inland homeowners simply don’t face. Salt air, high humidity, sea spray, and constant moisture-laden wind<\/strong> create one of the most corrosive environments a roof will ever encounter.<\/p>\n

The consequences of choosing the wrong roofing material for a coastal home can be severe: accelerated corrosion, coating failure, structural rust damage, and total roof replacement within just 5\u201310 years \u2014 at enormous cost. In contrast, choosing the right material, installed correctly, means decades of low-maintenance protection even in the harshest marine environments.<\/p>\n

This comprehensive 2026 guide covers everything coastal homeowners need to know about stone coated metal roofing: how salt air attacks roofing materials, what makes stone coated metal uniquely well-suited for coastal conditions, the specific product specifications you should require, and how to get the most out of your investment when you’re living within reach of the ocean.<\/p>\n

Whether you’re building a beachfront estate, renovating a Cape Cod cottage, or upgrading a Florida Keys vacation home, this guide is your definitive coastal roofing resource.<\/em><\/p>\n

\n \"Beautiful
A modern coastal home featuring stone coated metal roofing \u2014 engineered to withstand salt air, sea spray, and marine humidity year-round.<\/figcaption><\/figure>\n

Section 1: The Science of Salt Air Corrosion<\/h2>\n

1.1 How Salt Air Destroys Roofing Materials<\/h3>\n

Salt air corrosion is a complex electrochemical process that attacks metals and degrades organic materials far faster than inland conditions. Here’s what’s happening at the molecular level:<\/p>\n

    \n
  1. Salt aerosol deposition:<\/strong> Wind carries microscopic salt particles (sodium chloride and magnesium chloride) from the ocean surface. These particles deposit on roofing surfaces, particularly in sheltered crevices and joints where they concentrate.<\/li>\n
  2. Electrolyte film formation:<\/strong> Salt dissolved in atmospheric moisture creates a thin electrolyte film on metal surfaces. This film dramatically accelerates electrochemical corrosion \u2014 the same process that causes ordinary iron to rust, but happening 5\u201350\u00d7 faster depending on salinity and humidity.<\/li>\n
  3. Chloride ion attack:<\/strong> Chloride ions are particularly aggressive toward passive oxide films on metals. They break through the protective oxide layer on steel, aluminum, and zinc, exposing bare metal to direct corrosion.<\/li>\n
  4. Pitting and crevice corrosion:<\/strong> Once the protective layer is breached, corrosion accelerates rapidly in pits and crevices, creating deep penetrating damage that compromises structural integrity.<\/li>\n<\/ol>\n

    The intensity of salt air corrosion decreases with distance from the ocean but remains significant for much farther than most homeowners expect:<\/p>\n\n\n\n\n\n\n\n\n\n
    Distance from Ocean<\/th>\nRelative Corrosion Rate<\/th>\nSalt Deposition Level<\/th>\nMaterial Risk Category<\/th>\n<\/tr>\n<\/thead>\n
    0\u2013300 ft (0\u201390m)<\/strong><\/td>\nExtreme (20\u201350\u00d7 inland rate)<\/td>\nVery High (direct sea spray)<\/td>\nCritical Zone \u2014 Marine Grade Only<\/td>\n<\/tr>\n
    300\u20131,000 ft (90\u2013300m)<\/strong><\/td>\nVery High (10\u201320\u00d7 inland)<\/td>\nHigh (salt aerosol saturation)<\/td>\nSevere Zone \u2014 Marine Spec Required<\/td>\n<\/tr>\n
    1,000\u20133,300 ft (300m\u20131km)<\/strong><\/td>\nHigh (5\u201310\u00d7 inland)<\/td>\nModerate-High<\/td>\nHigh-Risk Zone \u2014 Enhanced Spec<\/td>\n<\/tr>\n
    1\u20133 miles (1.6\u20134.8km)<\/strong><\/td>\nModerate (2\u20135\u00d7 inland)<\/td>\nModerado<\/td>\nElevated Risk Zone<\/td>\n<\/tr>\n
    3\u201310 miles (5\u201316km)<\/strong><\/td>\nLow-Moderate (1.5\u20132\u00d7 inland)<\/td>\nBajo<\/td>\nStandard Coastal Zone<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    1.2 What Salt Air Does to Different Roofing Materials<\/h3>\n

    Not all roofing materials respond equally to marine environments. Understanding how each material fails helps clarify why some are appropriate for coastal use and others simply aren’t:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
    Material<\/th>\nSalt Air Failure Mode<\/th>\nTypical Lifespan (Coastal)<\/th>\nCoastal Suitability<\/th>\n<\/tr>\n<\/thead>\n
    Standard asphalt shingles<\/strong><\/td>\nGranule loss, accelerated oxidation of asphalt oils, brittleness<\/td>\n8\u201315 years<\/td>\n\u274c Poor \u2014 not recommended<\/td>\n<\/tr>\n
    Wood shakes\/shingles<\/strong><\/td>\nSalt absorption, fiber swelling\/shrinking, mold growth, splitting<\/td>\n5\u201312 years<\/td>\n\u274c Very Poor \u2014 avoid in marine zones<\/td>\n<\/tr>\n
    Bare galvanized steel<\/strong><\/td>\nRapid zinc depletion, base steel rust through<\/td>\n5\u201310 years<\/td>\n\u274c Very Poor \u2014 inadequate protection<\/td>\n<\/tr>\n
    Standard aluminum roofing<\/strong><\/td>\nPitting corrosion, white oxidation (aluminum oxide)<\/td>\n15-25 a\u00f1os<\/td>\n\u26a0\ufe0f Fair \u2014 better than steel but limited<\/td>\n<\/tr>\n
    Clay\/concrete tiles<\/strong><\/td>\nSalt crystallization in pores, spalling, iron staining from embedded rebar<\/td>\n20\u201340 years<\/td>\n\u26a0\ufe0f Moderate \u2014 heavy, requires reinforced structure<\/td>\n<\/tr>\n
    Premium stone coated metal (marine-grade)<\/strong><\/td>\nMinimal \u2014 stone coating fully encapsulates steel core<\/td>\n40\u201370 years<\/strong><\/td>\n\u2705 Excellent \u2014 specifically engineered for coastal use<\/td>\n<\/tr>\n
    Standing seam metal (aluminum)<\/strong><\/td>\nJoint sealant degradation, fastener corrosion if not stainless<\/td>\n30\u201350 years<\/td>\n\u2705 Good \u2014 requires marine-grade fasteners<\/td>\n<\/tr>\n
    Fiber cement \/ synthetic slate<\/strong><\/td>\nSalt absorption in micro-pores over time, color fade<\/td>\n20\u201335 years<\/td>\n\u26a0\ufe0f Moderate \u2014 better than natural materials<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Section 2: Why Stone Coated Metal Excels in Coastal Environments<\/h2>\n

    2.1 The Multi-Layer Corrosion Defense System<\/h3>\n

    Quality stone coated metal roofing tiles are engineered with a multi-layer defense system<\/strong> that is fundamentally different from any other roofing product on the market. Understanding each layer explains why stone coated metal outperforms everything else in marine environments:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
    Capa<\/th>\nMaterial<\/th>\nThickness \/ Spec<\/th>\nCoastal Protection Function<\/th>\n<\/tr>\n<\/thead>\n
    1. Steel Core<\/strong><\/td>\nG550 high-tensile galvalume steel<\/td>\n0.40\u20130.50mm base metal<\/td>\nStructural backbone \u2014 G550 grade provides 550 MPa tensile strength<\/td>\n<\/tr>\n
    2. Galvalume Coating<\/strong><\/td>\n55% aluminum, 43.4% zinc, 1.6% silicon<\/td>\nAZ150 grade (150 g\/m\u00b2)<\/td>\nThe critical corrosion barrier \u2014 aluminum provides barrier protection; zinc provides sacrificial galvanic protection. AZ150 outperforms standard zinc by 4\u20136\u00d7<\/td>\n<\/tr>\n
    3. Chromate Conversion Layer<\/strong><\/td>\nChromate passivation<\/td>\nSub-micron<\/td>\nSeals galvalume surface, prevents white rust formation during storage and early service life<\/td>\n<\/tr>\n
    4. Primer Coat<\/strong><\/td>\nEpoxy or polyurethane primer<\/td>\n5\u20138 microns<\/td>\nChemical bond between galvalume and finish coat; prevents underfilm corrosion<\/td>\n<\/tr>\n
    5. Acrylic Base Coat<\/strong><\/td>\nAcrylic polymer<\/td>\n8\u201312 microns<\/td>\nStone granule adhesive matrix; UV stabilized; salt-resistant<\/td>\n<\/tr>\n
    6. Stone Granule Layer<\/strong><\/td>\nNatural basalt or ceramic-coated granules<\/td>\n0.3\u20131.2mm<\/td>\nPhysical barrier isolating steel from salt air; UV protection; provides the aesthetic appearance<\/td>\n<\/tr>\n
    7. Acrylic Top Coat<\/strong><\/td>\nUV-stable acrylic sealant<\/td>\n4\u20136 microns<\/td>\nLocks stone granules; waterproof seal; the primary salt air contact layer<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    2.2 Galvalume AZ150 vs. Standard Galvanized: The Key Specification<\/h3>\n

    Not all stone coated metal tiles are created equal for coastal use. The most critical specification is the galvalume coating grade<\/strong>. Many entry-level products use AZ70 or AZ100 \u2014 coating weights that are inadequate for genuine marine environments.<\/p>\n

    For coastal homes, you should require AZ150 minimum<\/strong> \u2014 and ideally AZ180 or higher for homes within 300 feet of the shoreline:<\/p>\n\n\n\n\n\n\n\n\n\n
    Coating Grade<\/th>\nCoating Weight (g\/m\u00b2)<\/th>\nEstimated Coastal Durability<\/th>\nRecommended Application<\/th>\n<\/tr>\n<\/thead>\n
    AZ70<\/td>\n70 g\/m\u00b2<\/td>\n5\u201315 years coastal<\/td>\nInland use only \u2014 not suitable for coastal<\/td>\n<\/tr>\n
    AZ100<\/td>\n100 g\/m\u00b2<\/td>\n15\u201325 years coastal<\/td>\nLow-risk coastal zones (3+ miles from shore)<\/td>\n<\/tr>\n
    AZ150<\/strong><\/td>\n150 g\/m\u00b2<\/strong><\/td>\n25\u201345 years coastal<\/strong><\/td>\nStandard coastal spec (0.5\u20133 miles from shore)<\/td>\n<\/tr>\n
    AZ180<\/strong><\/td>\n180 g\/m\u00b2<\/strong><\/td>\n40\u201365 years coastal<\/strong><\/td>\nHigh-exposure coastal zones (under 0.5 miles)<\/td>\n<\/tr>\n
    AZ200+<\/td>\n200+ g\/m\u00b2<\/td>\n50\u201370+ years coastal<\/td>\nBeachfront \/ direct sea spray zones<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Section 3: Marine-Grade Specification Checklist for Coastal Buyers<\/h2>\n

    When sourcing stone coated metal tiles for a coastal installation, verify each of these specifications before purchasing. A product that fails to meet these minimums is not suitable for genuine coastal use:<\/p>\n

    3.1 Steel and Coating Specifications<\/h3>\n
      \n
    • \u2705 Steel grade:<\/strong> G550 or G500 minimum tensile strength (550 MPa \/ 500 MPa)<\/li>\n
    • \u2705 Galvalume coating:<\/strong> AZ150 minimum (AZ180 for high-exposure zones)<\/li>\n
    • \u2705 Base metal thickness:<\/strong> Minimum 0.40mm; 0.47mm preferred for severe marine zones<\/li>\n
    • \u2705 Salt spray test certification:<\/strong> Minimum 1,000 hours per ASTM B117 (2,000 hours preferred)<\/li>\n
    • \u2705 Cyclic corrosion test:<\/strong> Passes ASTM G85 salt\/SO\u2082 cyclic testing<\/li>\n
    • \u2705 Stone coating adhesion:<\/strong> Minimum Grade 1 per AS 4284 or equivalent<\/li>\n
    • \u2705 Acrylic top coat UV resistance:<\/strong> ASTM D4329 accelerated UV weathering passed<\/li>\n<\/ul>\n

      3.2 Fastener and Accessory Specifications<\/h3>\n

      In coastal environments, fastener selection is just as critical as the tile itself<\/strong>. Even a marine-grade tile will fail prematurely if installed with corrosion-prone fasteners:<\/p>\n

        \n
      • \u2705 Fasteners:<\/strong> Type 316 stainless steel minimum (Type 304 acceptable only for low-exposure zones)<\/li>\n
      • \u2705 Avoid:<\/strong> Zinc-plated screws, standard galvanized nails \u2014 both will corrode within 5\u201310 years in marine environments<\/li>\n
      • \u2705 Flashing:<\/strong> Minimum 0.70mm thickness; galvalume AZ150 or Type 304\/316 stainless steel<\/li>\n
      • \u2705 Ridge caps and closures:<\/strong> Same galvalume spec as tiles; factory-sealed ends preferred<\/li>\n
      • \u2705 Sealants:<\/strong> Polyurethane or silicone sealants with UV and salt spray resistance ratings<\/li>\n
      • \u2705 Underlayment:<\/strong> Self-adhering butyl or modified bitumen type \u2014 synthetic felt can degrade faster in coastal humidity<\/li>\n<\/ul>\n

        Section 4: Performance Comparison \u2014 Stone Coated Metal vs. Competitors in Coastal Environments<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
        Factor de rendimiento<\/th>\nMetal recubierto de piedra
        (Marine Grade)<\/th>\n        		Tejas asf\u00e1lticas<\/th>\nClay\/Concrete Tile<\/th>\nStandard Aluminum<\/th>\nStanding Seam Metal<\/th>\n<\/tr>\n<\/thead>\n
        Salt air corrosion resistance<\/strong><\/td>\nExcelente<\/strong><\/td>\nPobre<\/td>\nFair-Good<\/td>\nGood<\/td>\nVery Good<\/td>\n<\/tr>\n
        Wind uplift resistance<\/strong><\/td>\nExcellent (130\u2013180 mph)<\/strong><\/td>\nModerate (60\u2013110 mph)<\/td>\nGood (but brittle)<\/td>\nGood<\/td>\nExcelente<\/td>\n<\/tr>\n
        Coastal lifespan<\/strong><\/td>\n40\u201370 years<\/strong><\/td>\n8\u201315 years<\/td>\n20\u201340 years<\/td>\n15-25 a\u00f1os<\/td>\n30\u201350 years<\/td>\n<\/tr>\n
        Hurricane resistance<\/strong><\/td>\nClass 4 \/ FM 4473<\/strong><\/td>\nVariable (Class 1\u20133)<\/td>\nPoor (shatters)<\/td>\nGood<\/td>\nExcelente<\/td>\n<\/tr>\n
        Aesthetics (oceanfront)<\/strong><\/td>\nExcellent (multiple profiles)<\/strong><\/td>\nModerado<\/td>\nExcelente<\/td>\nIndustrial look<\/td>\nIndustrial\/modern only<\/td>\n<\/tr>\n
        Weight impact on structure<\/strong><\/td>\nLight (1.5\u20133 lbs\/sq ft)<\/strong><\/td>\nLight<\/td>\nVery heavy (9\u201312 lbs\/sq ft)<\/td>\nVery light<\/td>\nLight<\/td>\n<\/tr>\n
        50-year lifecycle cost (2,000 sq ft)<\/strong><\/td>\n$18,000\u2013$32,000<\/strong><\/td>\n$28,000\u2013$60,000
        (2\u20133 replacements)<\/td>\n        		$24,000\u2013$45,000<\/td>\n$22,000\u2013$38,000<\/td>\n$20,000\u2013$36,000<\/td>\n<\/tr>\n
        Maintenance in salt air<\/strong><\/td>\nLow \u2014 annual rinse only<\/strong><\/td>\nHigh \u2014 regular inspection for cracks<\/td>\nModerate \u2014 resealing required<\/td>\nModerado<\/td>\nLow \u2014 sealant checks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Section 5: Regional Coastal Environments \u2014 Specific Considerations<\/h2>\n

        5.1 Atlantic Coast (US East Coast)<\/h3>\n

        The US Atlantic coast presents a complex coastal environment combining salt air with hurricane threats, nor’easters, and high seasonal humidity. Key requirements for Atlantic coastal installations:<\/p>\n

          \n
        • Wind resistance:<\/strong> Florida to Cape Hatteras zones require minimum 130 mph wind rating; Class 4 or FM 4473 certification strongly recommended<\/li>\n
        • Hurricane impact:<\/strong> For Florida, Georgia, and South Carolina coastal zones, verify the tile meets Miami-Dade County NOA (Notice of Acceptance) standards<\/li>\n
        • Humidity management:<\/strong> High summer humidity requires robust attic ventilation to prevent condensation-related corrosion on the underside of tiles<\/li>\n
        • Salt specification:<\/strong> North Carolina to Maine coastlines: AZ150 minimum. Florida Keys and Gulf Coast: AZ180 or higher<\/li>\n<\/ul>\n

          5.2 Gulf Coast (Texas, Louisiana, Mississippi, Alabama, Florida Panhandle)<\/h3>\n

          The Gulf Coast presents particularly harsh conditions: extreme salt concentration, high temperatures, hurricane risk, and frequent tropical systems. This is one of the most demanding coastal environments in North America:<\/p>\n

            \n
          • Extra corrosion risk:<\/strong> Warm, humid Gulf air carries higher salt concentrations than cooler Atlantic air \u2014 upgrade to AZ180 minimum within 2 miles of the coast<\/li>\n
          • UV exposure:<\/strong> High UV Index year-round \u2014 verify the stone coating’s UV-stable acrylic topcoat specification<\/li>\n
          • Flood risk:<\/strong> Design for potential storm surge \u2014 the roof’s structural integrity after partial flooding is essential<\/li>\n<\/ul>\n

            5.3 Pacific Coast (California, Oregon, Washington)<\/h3>\n

            Pacific coastal conditions are moderated by cooler water temperatures but still present significant salt air challenges, particularly in Northern California and the Pacific Northwest where persistent marine fog deposits salt year-round:<\/p>\n

              \n
            • Fog zone considerations:<\/strong> Marine fog can deposit salt even 10\u201315 miles inland. San Francisco Bay Area homeowners should treat their homes as coastal even if not directly on the water<\/li>\n
            • Seismic considerations:<\/strong> Pacific coastal homes in seismic zones benefit from stone coated metal’s lightweight nature \u2014 less seismic mass on the roof structure<\/li>\n
            • California fire code:<\/strong> All California coastal counties require Class A fire rating \u2014 verify product certification<\/li>\n<\/ul>\n

              5.4 Tropical Island and Caribbean Environments<\/h3>\n

              Island and Caribbean environments represent the ultimate test for coastal roofing: year-round salt air, extreme hurricane exposure, intense UV, and high humidity with no winter break for materials to recover:<\/p>\n

                \n
              • Maximum specification:<\/strong> AZ200 or higher; stainless steel fasteners (Type 316 mandatory); all-silicone sealants<\/li>\n
              • Hurricane category compliance:<\/strong> Must withstand Category 4\u20135 hurricane wind loads (140\u2013170+ mph)<\/li>\n
              • Mold\/mildew resistance:<\/strong> High humidity year-round \u2014 stone coating with anti-microbial additives preferred<\/li>\n<\/ul>\n

                Section 6: Installation Best Practices for Coastal Homes<\/h2>\n

                6.1 Pre-Installation Planning<\/h3>\n

                Coastal installation requires careful planning before a single tile is placed. Shortcuts that are acceptable in inland environments can be catastrophic at the coast:<\/p>\n

                  \n
                1. Structural assessment:<\/strong> Have a structural engineer verify the roof deck and framing \u2014 particularly for homes converting from heavy clay or concrete tiles, which may have caused deflection or damage over time<\/li>\n
                2. Complete vapor barrier system:<\/strong> Install a continuous self-adhering ice and water shield (IWS) membrane over the entire roof deck \u2014 not just the eaves \u2014 in salt air zones<\/li>\n
                3. Counter-batten system:<\/strong> Consider a secondary counter-batten installation creating a ventilated air gap between the underlayment and the tiles. This prevents condensation buildup and allows any wind-driven salt spray to drain<\/li>\n
                4. Verify all penetrations:<\/strong> Every pipe, vent, and chimney penetration must be sealed with marine-grade flashing and sealant. Salt air loves to find its way through inadequately sealed penetrations<\/li>\n<\/ol>\n

                  6.2 Critical Installation Details for Salt Air Environments<\/h3>\n\n\n\n\n\n\n\n\n\n\n
                  Installation Detail<\/th>\nInland Standard<\/th>\nCoastal Requirement<\/th>\nWhy It Matters<\/th>\n<\/tr>\n<\/thead>\n
                  Fijaciones<\/td>\nHot-dip galvanized or Type 304 SS<\/td>\nType 316 stainless steel mandatory<\/td>\nType 304 can corrode within 5\u201310 years in direct coastal exposure; 316 offers 3\u20134\u00d7 better chloride resistance<\/td>\n<\/tr>\n
                  Flashing thickness<\/td>\n0.50mm minimum<\/td>\n0.70mm minimum AZ150<\/td>\nThicker flashing lasts longer when salt attacks the edges and cut surfaces<\/td>\n<\/tr>\n
                  Ridge cap installation<\/td>\nStandard butyl sealant<\/td>\nMarine-grade polyurethane sealant + SS screws<\/td>\nRidge is highest wind exposure point \u2014 sealant failure = water entry<\/td>\n<\/tr>\n
                  Eave detail<\/td>\nDrip edge standard<\/td>\nExtended drip edge + sealed eave closure<\/td>\nPrevents salt-laden water from wicking under eave and attacking structure<\/td>\n<\/tr>\n
                  Contrapiso<\/td>\nSynthetic or felt<\/td>\nFull-coverage self-adhering membrane<\/td>\nFelt absorbs salt-laden moisture over time; self-adhering membrane provides total barrier<\/td>\n<\/tr>\n
                  Gutter system<\/td>\nAluminum or galvanized<\/td>\nStainless steel, copper, or premium aluminum<\/td>\nStandard galvanized gutters corrode rapidly in marine zones; gutter failure can lead to fascia and soffit damage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  Section 7: Coastal Maintenance Program for Stone Coated Metal Roofs<\/h2>\n

                  Even marine-grade stone coated metal roofing requires a thoughtful maintenance routine in coastal environments. The good news: compared to any other material, maintenance is minimal.<\/p>\n

                  7.1 Annual Maintenance Routine<\/h3>\n\n\n\n\n\n\n\n\n\n\n
                  Tarea<\/th>\nFrecuencia<\/th>\nM\u00e9todo<\/th>\nWhy Coastal Homes Need This<\/th>\n<\/tr>\n<\/thead>\n
                  Salt rinse<\/strong><\/td>\n2\u00d7 per year (or after major storms)<\/td>\nLow-pressure garden hose rinse \u2014 plain fresh water, no chemicals<\/td>\nRemoves accumulated salt deposits before they concentrate and attack coating<\/td>\n<\/tr>\n
                  Gutter flush<\/strong><\/td>\n2\u20133\u00d7 per year<\/td>\nRemove debris; flush with water<\/td>\nSalt-loaded debris in gutters accelerates corrosion of gutter system and fascia<\/td>\n<\/tr>\n
                  Inspecci\u00f3n de elementos de fijaci\u00f3n<\/strong><\/td>\nEvery 2\u20133 years<\/td>\nVisual inspection from roof (with caution)<\/td>\nEven SS 316 fasteners should be checked; any corrosion signals a spec problem<\/td>\n<\/tr>\n
                  Flashing inspection<\/strong><\/td>\nAnnually (post-hurricane season)<\/td>\nCheck sealant integrity at all flashings<\/td>\nSalt air dries out and degrades sealants faster than inland; reseal as needed<\/td>\n<\/tr>\n
                  Stone coating check<\/strong><\/td>\nEvery 5 years (professional)<\/td>\nInspect for granule loss or coating delamination<\/td>\nGranule loss exposes acrylic coat; any bare spots must be addressed promptly<\/td>\n<\/tr>\n
                  Post-hurricane inspection<\/strong><\/td>\nAfter any Category 2+ storm<\/td>\nProfessional inspection; check for displaced tiles, fastener pullout<\/td>\nWind uplift can loosen fasteners even if tiles look intact from ground level<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  7.2 What NOT to Do in Coastal Maintenance<\/h3>\n