For any property owner, a roof is an essential investment, and keeping it in good condition can prevent thousands of dollars in future repair or replacement expenses. The durability and affordability of EPDM (ethylene propylene diene monomer), one of the many flat roofing materials available, have made it extremely popular. However, like with any roofing system, one question often comes up: Can you recoat an EPDM roof?
To help you find the answer to this question, let’s get into this blog post.
The Main Question: Can You Recoat An EPDM Roof?
Yes, you can recoat an EPDM roof if it’s in good condition. Applying a coating can extend its lifespan and enhance performance. However, if the roof shows significant wear, leaks, or damaged seams, a full replacement may be necessary. To ensure the new coating adheres properly, a thorough inspection and preparation are essential.
Reasons to Recoat Your EPDM Roof
Let’s take a look at the benefits of recoating your EPDM roof:
1. Prolongs Roof Life
Recoating protects against UV and weather damage, adding years to your roof’s lifespan.
2. Restores Waterproofing
A fresh coat prevents leaks and water damage, saving you from costly repairs.
3. Improves Appearance
Recoating brightens up your roof and gives it a clean, uniform look if it’s faded or dirty.
4. Enhances Energy Efficiency
Reflective coatings help reduce heat absorption, which keeps your building cooler and lowers energy bills.
5. Adds Durability
A new coating boosts your roof’s strength, guarding it against weather, foot traffic, and leaks.
6. Seals Minor Damage
Coatings fix small leaks and prevent further damage, protecting your roof from bigger issues.
7. New Warranty
If installed by a professional, some coatings come with a new warranty, giving you peace of mind for future repairs.
8. Cost-Effective
Recoating is cheaper than major repairs or replacements, offering a budget-friendly solution.
9. Adapts to Climate
You can choose a coating that suits your local weather conditions for optimal performance.
What Are The Different Types Of Coatings For EPDM Roofs?
To help you choose the right coating, here are a few options:
1. Acrylic Coatings
Water-based and UV-resistant, acrylic coatings are perfect for hot climates, offering a reflective surface that helps reduce heat absorption. Easy to apply, they can be sprayed or rolled on and also prevent mildew and dirt buildup, extending the roof’s life.
2. Silicone Coatings
Flexible and weather-resistant, silicone coatings provide excellent protection against ponding water and UV damage. They maintain elasticity over time, preventing cracks and leaks. Although pricier, their low maintenance and long-lasting performance make them a solid investment.
3. Butyl Rubber Coatings
Known for their strong adhesion and flexibility, butyl rubber coatings create a seamless, protective layer against UV rays and environmental wear. These coatings are particularly effective in moisture-prone areas due to their excellent water resistance.
4. Polyurethane Coatings
Durable and protective, polyurethane coatings form a tough, flexible barrier that resists leaks and UV damage. Although their application process is more complex, they offer superior long-term protection once cured.
Signs Your EPDM Roof Needs Recoating
If you notice any of the following signs, your EPDM roof may need recoating:
1. Cracks and Tears
Check for visible cracks or tears in the roof. These can weaken the membrane, and recoating is needed to prevent further damage.
2. Peeling Coating
If the coating is flaking off, it’s a sign of deterioration. A new layer is required to restore the roof’s protection.
3. Thinning Membrane
UV rays and weather can thin the EPDM membrane over time. Thin spots signal the need for recoating to extend the roof’s life.
4. Leaks
Unexplained leaks can mean the roof is no longer effective. Recoating can help seal these areas and prevent further leaks.
5. Standing Water
If water pools on the roof and doesn’t drain, it may cause leaks. Recoating can improve durability and prevent damage.
6. Roof Age
If your roof is nearing or has surpassed 15 to 20 years, recoating is a good option to maintain its effectiveness.
7. Visible Scrim or Bare Spots
Scrim or bare areas where granules are missing indicate wear. A new coat will help protect the roof from UV damage.
8. Frequent Repairs
Ongoing repairs may suggest that recoating is needed to address underlying issues and prevent further damage.
9. Seam Failures
Damaged seams can lead to leaks. Recoating can seal these vulnerable areas and prevent leaks from worsening.
It’s important to remember that while recoating can seal and prevent minor damage, if your roof has significant wear or is very old, replacing it might be the better option.
The EPDM Recoating Process
Here’s a simple guide to help you understand the recoating process:
Preparation Steps
Step 1: Clean the Surface
A. Gather Your Tools
You’ll need a soft-bristle broom or low-pressure hose, a bucket, and mild soap (if needed).
B. Remove Debris:
- Sweep off leaves, dirt, and debris using a soft-bristle broom.
- For tough dirt, rinse with a low-pressure hose. Avoid high-pressure water to protect the EPDM membrane.
C. Avoid Harsh Chemicals:
Don’t use harsh chemicals or solvents, as they can damage the roof. Mild soap and water work best.
D. Drying
Let the surface dry completely before continuing to ensure proper adhesion of the coating.
Step 2: Inspect for Damage
A. Check for Damage: Look for punctures, tears, or cracked seams.
B. Repair Damage: If you find damage, fix it before recoating. Use an EPDM repair kit or sealant as needed.
Application Process
Step 3: Apply Primer (if needed)
A. Check Manufacturer Instructions: See if the coating requires a primer for better adhesion.
B. Apply Primer:
- Use a roller or brush to apply the primer evenly across the roof.
- Follow the manufacturer’s guidelines on thickness and drying times.
C. Drying Time: Let the primer dry completely before applying the coating.
Step 4: Apply Coating
A. Choose Application Method: Select the best method for your roof size:
- Roller: Works well for large areas.
- Brush: Ideal for edges and tight spots.
- Sprayer: Quick but ensure even coverage and avoid overspray.
B. Work in Sections:
- Divide the roof into sections to maintain control over the application.
- Start from one end and work across, overlapping sections slightly to prevent lines and ensure proper adhesion.
C. Apply Evenly:
- Follow the manufacturer’s thickness recommendations to avoid pooling.
Step 5: Allow to Dry
A. Follow Drying Guidelines: Refer to the product instructions for drying times and conditions.
B. Avoid Foot Traffic: Do not walk on the roof until it’s fully cured as per the manufacturer’s guidelines.
C. Weather Conditions:
- Ensure the weather is ideal—no rain or extreme temperatures—during application and drying.
- Protect the coated areas from bad weather until completely cured.
Common Mistakes to Avoid
Recoating your EPDM roof can be a DIY project, but there are some common mistakes to avoid during the process:
1. Poor Surface Prep
Failing to clean the surface thoroughly can weaken adhesion, leading to a less effective coating.
2. Skipping Primer
Not applying primer when necessary can compromise the bonding process, reducing the coating’s longevity.
3. Ignoring Weather
Coating in unsuitable weather can impact curing times and the overall performance of the roof.
Thinking About Recoating Your EPDM Roof? Contact Empire Roofing & Exteriors Today!
Is your EPDM roof starting to show its age? Empire Roofing & Exteriors has the expertise you need. Our skilled team specializes in EPDM roof repair, replacement, and recoating, using the best quality materials and advanced methods to deliver lasting results. We’re here to ensure your roof is strong and reliable with our quality EPDM services. Reach out to us at (225) 347-8877 to schedule a consultation.