When it comes to roofing materials, rubber roofing—especially EPDM (ethylene propylene diene monomer)—has become a popular choice for flat and low-slope residential roofs. It’s durable, weather-resistant, and relatively low-maintenance. However, one question many homeowners ask is: “Do you put anything on rubber roof on the house?”
The short answer is yes—you can and should apply specific products to a rubber roof to maintain its integrity, extend its lifespan, and improve energy efficiency. In this comprehensive guide, we’ll explore the various products you might apply to a rubber roof, why they’re important, and how to care for your rubber roofing system properly.
Read too: Hail Damage Roof Repair: Essential Guide to Restoring Your Home’s Protection
Do You Put Anything On Rubber Roof On The House? What You Should Know
Rubber roofs, especially those made of EPDM, are designed to be durable and long-lasting. However, environmental elements like UV rays, extreme temperatures, rain, and snow can wear down the rubber material over time. Applying appropriate coatings and treatments can prevent deterioration and preserve the roof’s function and appearance.
Let’s break down what can and should be applied to a rubber roof on a house:
1. Rubber Roof Coatings
Rubber roof coatings are specialized products designed to protect and extend the life of rubber roofing materials. These coatings often come in liquid form and are brushed or rolled onto the roof surface. There are several types:
a. Acrylic Coating
- Pros: UV resistant, reflective, easy to apply, cost-effective.
- Best For: Hot climates or areas with a lot of sun.
- Note: Not ideal for areas with heavy rain or standing water.
b. Silicone Coating
- Pros: Excellent water resistance, long-lasting, flexible.
- Best For: Areas with heavy rainfall or ponding water.
- Note: Slightly more expensive than acrylic.
c. EPDM Liquid Rubber
- Pros: Designed specifically for EPDM rubber roofs, excellent adhesion, weather resistance.
- Best For: Any rubber roofing system.
- Note: May require a primer if applied over non-EPDM surfaces.
Applying these coatings can:
- Extend the roof’s lifespan by protecting it from UV and ozone.
- Prevent cracks and leaks.
- Enhance energy efficiency by reflecting heat.
2. Roof Sealants
In addition to overall coatings, specific sealants can be applied to seams, flashing, and areas around vents and skylights. These sealants help prevent water intrusion at vulnerable points.
- Rubber-Based Sealants: Compatible with EPDM and other rubber roofs.
- Silicone Sealants: Extremely durable and water-resistant, ideal for sealing around roof features.
Regularly sealing these joints and edges helps maintain a watertight barrier and prevents minor leaks from turning into costly repairs.
3. Roof Cleaning Products
Before applying any coating or sealant, it’s crucial to clean the rubber roof thoroughly. Dirt, mold, algae, and grime can affect adhesion and reduce the effectiveness of coatings.
- Rubber Roof Cleaners: These are formulated specifically for EPDM and rubber materials.
- Mild Detergents: Sometimes a simple mix of dish soap and water works well.
- Avoid Harsh Chemicals: Petroleum-based cleaners or solvents can damage rubber roofing.
Regular cleaning, even without coating, can prolong the roof’s life and help spot potential issues early.
4. UV Protectant Sprays
For areas with intense sunlight, UV protectant sprays or treatments can be applied to prevent the rubber from drying, cracking, or shrinking due to UV exposure.
These sprays typically need to be reapplied every 1–2 years but are worth it if your roof gets direct sun for most of the day.
Understanding the Benefits of Adding Products to a Rubber Roof
Still wondering why you should bother applying anything to your rubber roof? Here are the main benefits:
a. Extended Lifespan
A well-maintained rubber roof can last 20–30 years. Applying coatings and treatments helps you reach or even exceed that lifespan by preventing wear and tear.
b. Leak Prevention
Most rubber roof failures start at seams, edges, or around penetrations. Coatings and sealants form a protective, seamless layer that minimizes water intrusion.
c. Improved Energy Efficiency
Reflective coatings, like acrylic or white EPDM, can reflect sunlight and reduce heat absorption. This means lower cooling costs in the summer.
d. Better Aesthetic Appeal
Over time, rubber roofs can fade, stain, or look worn. A fresh coat can make your roof look new and more attractive, which is especially helpful if you’re planning to sell your home.
How Often Should You Apply Products to a Rubber Roof?
The frequency of treatment depends on your climate, the condition of the roof, and the type of product used:
- Roof Coating: Every 5–10 years, depending on product durability.
- Sealant Maintenance: Every 2–4 years, or when seams begin to show signs of wear.
- Roof Cleaning: Annually or bi-annually to maintain surface condition.
- UV Spray: Every 1–2 years in sunny regions.
Regular inspections (at least once a year) are key to determining when your roof needs attention.
Mistakes to Avoid When Applying Anything to a Rubber Roof
While maintenance is important, doing it incorrectly can lead to more harm than good. Here are common mistakes to avoid:
1. Using Incompatible Products
Never use petroleum-based products, standard roof tars, or generic asphalt coatings on a rubber roof—they can degrade the rubber and cause damage.
2. Not Cleaning Before Coating
Applying a coating over dirt or mold reduces adhesion and effectiveness. Always clean the roof thoroughly and let it dry completely before application.
3. Skipping Primer (When Needed)
Some coatings require a primer to bond properly to EPDM. Check manufacturer guidelines to avoid peeling or bubbling.
4. Applying in Bad Weather
Rain, extreme heat, or freezing temperatures can ruin a coating job. Choose a calm, dry day with mild temperatures for best results.
Professional vs. DIY: Should You Hire a Roofing Expert?
If you’re comfortable with basic maintenance and have the right tools, applying a rubber roof coating or sealant can be a DIY project. However, you might consider hiring a professional if:
- The roof is hard to access.
- There’s significant existing damage.
- You want long-lasting, warrantied results.
Professional roofing contractors can apply products faster, more evenly, and with the right safety measures.
Final Thoughts: So, Do You Put Anything On Rubber Roof On The House?
Absolutely! Applying the right products—coatings, sealants, cleaners, and UV protectants—to your rubber roof is one of the best ways to preserve its performance and prevent costly repairs down the road. When maintained properly, a rubber roof offers excellent protection for decades. By understanding what to apply, when to apply it, and how to do it right, you’ll ensure your roof stays strong, clean, and functional all year long.
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