Dicor DFII46W-16 Diflex II TPO 4' 6" X 16' Polar White Tan Dove White Rolled

Patch, repair, or partially re-roof your RV with the Dicor DiFlex II TPO Rubber Roof Piece (Part #DFII46W-16) — a 4'6" × 16' rolled piece of premium TPO roofing membrane engineered specifically for modern RVs. Same DiFlex II technology used in full RV re-roofs, sized as a longer 16' piece for bigger patch jobs, larger repair areas, or compact RV applications. Three color options available at the same price.

Modern Roofing for Modern RVs

Today's RVs demand better, more flexible roofing membranes than the older PVC systems most are still being repaired with. Modern roof designs have more contours, more vents, more equipment penetrations, and tighter radii at the edges — all of which stress lesser membranes to the point of failure. DiFlex II is highly stretchable and conforms to the contours of any RV roof while staying clean, dust-free, and chalk-free over years of sun and weather exposure.

Superior to Traditional PVC Roofing

The DiFlex II membrane outperforms standard PVC RV roofing in every meaningful spec:

• 10% thicker than PVC roofing
• 220% higher tear resistance
• 500% more elongation (flexibility/stretch capability)

The result: a membrane that conforms to your roof rather than fighting it, resists punctures from tree branches and storm debris, and stretches with thermal expansion rather than cracking.

Long Life Span with Superior UV Protection

DiFlex II is engineered for long-term durability:

• Resistant to mold, algae, and fungus
• Excellent UV protection across all available colors
• Minimum 5% higher solar reflectivity than PVC after the initial 3 years — improving as PVC degrades and extending through the product's life
• Color-lasting performance over the membrane's full service life

Right-Sized for Bigger Patch Jobs

This 4'6" × 16' piece is the right choice for:

• Larger spot repairs covering bigger areas of damaged membrane
• Multi-section patches when one repair area isn't enough
• Small-to-mid-size trailers and rigs where 16' covers most of the roof in a single run
• Bus conversions, vans, and custom rigs with longer narrow roofs

Three Color Options — Same Price

Available colors (selectable above):

• Polar White
• Tan
• Dove White

Considering Other Sizes?

We carry the DiFlex II in multiple sizes to match different repair and re-roofing needs:

• Dicor DiFlex II 4'6" × 10' (DFII46W-10) — shorter piece for smaller patches and spot repairs
• Dicor DiFlex TPO 8.5' wide, 20-40' lengths — full re-roof membrane for complete RV roof replacement

Considering EPDM Instead of TPO?

If you'd rather use traditional EPDM technology, we carry the Dicor EPDM Plus (9'6" wide, 21–50' lengths) — Dicor's strengthened EPDM membrane with 28% more tear resistance and 60% more puncture resistance than older EPDM. EPDM vs TPO is a real choice for RV re-roofing — both have committed user bases.

Simple, Low-Maintenance Care

One of the practical advantages of DiFlex II: simple care with no special materials required:

• Periodic cleaning 3–4 times per year is the primary maintenance
• Use a non-abrasive household cleaner like dish soap and a medium-bristled scrub brush
• Avoid harsh or highly abrasive products during routine cleaning
• Thoroughly rinse the roof and sidewalls after cleaning to remove soap residue and prevent streaking

Required for Installation

To install your DiFlex II membrane, you'll need the following Dicor accessories and tools (sold separately):

• Dicor water-based adhesive #901BA
• Dicor butyl tape (size depends on application)
• Dicor lap sealant
• Utility knife and squeegee
• Paint roller or brush

⚠️ Important: Do NOT use silicone with the DiFlex II membrane — silicone will not adhere properly.

Warranty Disclaimer

Dicor retains the right to deny liability for any defects or damages to the roof membrane caused by another manufacturer's products (sealants, adhesives, tapes, or related products). For warranty coverage, use only Dicor-approved installation materials.

Key Features

• 4'6" × 16' rolled TPO piece
• Three color options at the same price — Polar White, Tan, Dove White
• Premium DiFlex II TPO — modern RV roofing technology
• Superior to PVC — 10% thicker, 220% better tear resistance, 500% more elongation
• Highly flexible and stretchable for contoured RV roofs
• Resistant to mold, algae, and fungus
• Excellent UV protection with higher solar reflectivity than PVC
• Clean, dust-free, chalk-free long-term
• Simple maintenance with normal household cleaners
• Right-sized for bigger patch jobs and smaller rigs
• Backed by a 20-year manufacturer warranty

Specifications

• Brand: Dicor
• Part Number: DFII46W-16
• Product: DiFlex II TPO Rubber Roof Piece
• Material: TPO (thermoplastic polyolefin)
• Dimensions: 4'6" W × 16' L
• Color Options: Polar White, Tan, Dove White
• Tear Resistance vs. PVC: 220% higher
• Elongation vs. PVC: 500% greater
• Thickness vs. PVC: 10% thicker
• UV Protection: Yes (all colors)
• Solar Reflectivity: 5%+ higher than PVC after 3 years
• Mold / Algae / Fungus Resistance: Yes
• Form: Rolled
• Warranty: 20-year manufacturer warranty