About Dicor
Dicor RV Roofing Solutions & Repair Products
Dicor is the leading brand in the RV aftermarket for roofing repair and protection, offering a comprehensive three-part roofing system consisting of premium membranes, bonding adhesives, and lap sealants engineered for reliable weather protection and durability. Dicor's expertise in rubber and TPO formulations ensures that RV owners and repair professionals can restore roofs to like-new condition with products specifically designed for the unique demands of mobile living and extreme weather exposure.
DiFlex II TPO (thermoplastic polyolefin) is Dicor's premium non-fleece-backed roofing membrane, engineered for exceptional flexibility and suppleness rivaling traditional EPDM rubber while offering superior durability and UV resistance. DiFlex II is 36% lighter than competitive membranes, making it easier to lift, spread, and apply—available in Polar White, Dove (Bright White), Grey, Tan, and Ivory to match various RV colors and aesthetic preferences.
EPDM Rubber Roofing is Dicor's classic synthetic rubber membrane for RVs, delivering proven longevity and weather protection with simple maintenance and repair. EPDM roofs are easy to patch, repair, and re-seal when wear occurs, and work seamlessly with Dicor's bonding adhesives and lap sealants to complete the integrated roofing system. EPDM repair membranes enable targeted patching of damaged areas without replacing the entire roof.
Crossflex Roofing is the RV industry's first synthetic thermoplastic membrane, representing a newer innovation that combines the ease of TPO application with enhanced elasticity and adhesive compatibility. Ultra Sealant complements the membrane systems with a high-solids formula that resists puckering and wrinkling as it cures, ensuring durable lap seals and penetration closures. Dicor roof coatings protect membranes from UV degradation and extend roof life between major repairs.
ChatMRO streamlines your RV roofing project by letting you describe your RV's current roof type (EPDM/TPO/Crossflex), roof dimensions, and repair/replacement needs—then instantly matching the right Dicor membrane, sealant, adhesive, and repair products from the complete three-part system, complete with installation guidance and compatibility notes.
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Frequently asked questions
Should I replace my entire RV roof or patch and reseal the existing membrane?
Assess your roof's condition first: if it has 1-2 isolated leaks or minor damage and the membrane is structurally sound, patching with Dicor repair membranes and sealants is cost-effective and quick. If the roof shows widespread deterioration, UV damage across large areas, or multiple seam failures, full replacement with DiFlex II or EPDM is more economical and provides 10-15+ years of protection versus a few more years from patching. Most RV owners replace roofs when they reach 10-15 years old or show significant wear.
What's the difference between DiFlex II TPO and EPDM for my RV roof?
EPDM rubber is the proven classic, easier to patch in the field and familiar to most RV mechanics, though it can develop cracks over time in UV exposure. DiFlex II TPO is lighter, more flexible, and offers superior UV resistance and color options—slightly harder to patch than EPDM but stays supple longer in extreme heat/cold cycling. Choose EPDM for cost-effectiveness and repairability, DiFlex II for premium durability and weight savings on newer RVs.
Can I apply a Dicor roof membrane myself or do I need a professional?
Many RV owners successfully apply Dicor membranes themselves with proper preparation and tools—the membrane, adhesive, and sealant are designed for DIY installation if you're comfortable working at heights and following detailed instructions. However, professional installers can ensure proper substrate preparation, sealing, and flashing, reducing the risk of future leaks. For a DIY approach, start with a repair patch kit to build confidence before attempting a full roof replacement.
How do I prepare my RV roof before applying a new Dicor membrane?
Proper preparation is critical: remove all debris, clean the surface with mild soap and water, allow drying, then sand lightly to promote adhesive bonding. For old EPDM roofs, the existing membrane can often stay in place as a substrate (this saves weight). For severely deteriorated roofs, remove old material down to the RV substrate. Inspect and repair any wood rot or structural damage before applying new membrane—water damage underneath will cause the new roof to fail prematurely.
What warranty does Dicor provide on roofing membranes and sealants?
Dicor typically offers limited warranties on membranes (10-15 year coverage against defects in materials and workmanship) and sealants (3-5 years depending on product). Warranty coverage varies by product and application—check the specific product packaging or Dicor's website for your membrane type. Warranty generally does not cover installation defects or damage from improper maintenance, so follow application instructions carefully.