Maintaining Your Coated or Foam Roof

Proper maintenance of your spray polyurethane foam (SPF) or coated roof is essential to maximize its lifespan and performance. Regular upkeep helps preserve the protective layer, prevent leaks, and identify any issues before they become major problems. This guide provides specific maintenance advice to help you care for your SPF and coated roofing systems.

Understanding SPF and Coated Roofs

SPF roofs consist of a layer of closed-cell foam sprayed onto the roof surface, followed by a protective silicone or elastomeric coating. Coated roofs involve applying a protective coating over existing roofing materials to enhance durability and reflectivity. Common coatings include silicone and acrylic-based materials.

Benefits of Regular Maintenance

• Extend Roof Lifespan: Proper care can significantly prolong the life of your roof.
• Prevent Leaks: Early detection and repairs of punctures or wear prevent water intrusion.
• Maintain Energy Efficiency: Preserving the reflective properties helps maintain the roof system’s R-value..
• Warranty Compliance: Many manufacturers require regular maintenance to keep warranties valid.

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Routine Maintenance Tasks

1. Biannual Inspections

Conduct thorough inspections at least twice a year, preferably in the spring and fall.

• Inspect the Surface: Look for cracks, blisters, or punctures in the coating.
• Check for Ponding Water: Ensure proper drainage to prevent water accumulation.
• Examine Seals: Check the seals around vents, skylights, and other penetrations.
• Look for Biological Growth: Remove any moss, algae, or vegetation.

2. After Severe Weather Events

Inspect your roof after hailstorms, heavy rain, or high winds.

• Check for Impact Damage: Hail can cause indentations or fractures.
• Look for Debris: Remove branches or other debris that may have fallen onto the roof.

3. Clean the Roof Surface

Keep the roof clean to maintain the integrity of the coating.

• Remove Dirt and Dust: Gently wash the surface with a low-pressure water pressure.
• Clear Debris: Remove leaves, sticks, and other materials that can trap moisture.
• Inspect the cleaned surface: Identify any compromised areas for repair. 

4. Monitor the Protective Coating

The coating is crucial for protecting the foam and underlying roof structure.

• Check for Wear: Look for thinning areas or signs of UV degradation.
• Recoat as Needed: Depending on the type of coating, recoating may be required every 5-7 years.
  
  • Acrylic Coatings: Typically require recoating every 5-7 years.
  • Silicone Coatings: May last 10-12 years before recoating is needed.
• Consult a Professional: Have a roofing contractor assess when recoating is necessary.

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Identifying Common Issues

Punctures and Tears

• Causes: Foot traffic, fallen objects, or animal activity.
• Detection: Look for visible holes or torn areas in the coating.
• Action: Repair with 3 course and putty to promptly to prevent water infiltration.

Blistering or Bubbling

• Causes: Trapped moisture, improper installation, or aging materials.
• Detection: Raised areas or bubbles on the roof surface.
• Action: Cut out blisters, removing the affected area. Spray new foam and coating to match the existing roof’s slope.

Cracking and Splitting

• Causes: Thermal expansion, UV exposure, or aging.
• Detection: Visible cracks in the coating or foam.
• Action: Seal cracks with compatible sealant or coating.

Delamination

• Causes: Improper initial adhesion between layers.
• Detection: Peeling or separation of the coating from the foam.
• Action: Remove loose materials and reapply coating as needed.

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Preventative Measures

Limit Roof Access

• Minimize Foot Traffic: Only allow trained personnel on the roof.
• Use Walk Pads: Install protective walkways for necessary access..

Maintain the Surrounding Areas

• Trim Overhanging Branches: Prevent damage from falling limbs.
• Secure Loose Objects: Ensure items won't blow onto the roof during storms.

Ensure Proper Drainage

• Clear Gutters and Downspouts: Prevent blockages that lead to ponding.
• Check Slopes: Ensure the roof directs water toward drains.

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When to Call a Professional

• Extensive Damage: Large punctures, widespread blistering, or significant coating failure; interior leaking.
• Uncertain Conditions: If you're unsure about the roof's condition.
• Warranty Work: Maintain compliance with warranty terms by using approved contractors.

Choosing a Qualified Roofing Contractor

• Experience with SPF and Coated Roofs: Ensure the contractor specializes in these systems.
• Licensed and Insured: Verify credentials to protect yourself.
• References and Reviews: Check past work and customer satisfaction.
• Manufacturer Certifications: Preferred contractors may have certifications from coating manufacturers.

Record Keeping

• Maintain a Maintenance Log: Document inspections, cleanings, repairs, and any contractor work.
• Track Weather Events: Note any storms that may impact the roof.
• Keep Warranty Information: Have easy access to warranty documents and contractor contacts.

The Importance of Regular Maintenance 

Regular maintenance of your SPF or coated roof is essential for protecting your investment and ensuring your roof performs effectively for years to come. By conducting routine inspections, promptly addressing issues, and working with qualified professionals, you can maintain the integrity of your roof and avoid costly repairs or premature replacement.

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