Why Does Your RVStow Roof Rack Cargo Basket Create Wind Noise?
Every RV owner who has mounted an RVStow Roof Rack Cargo Basket knows the trade-off: exceptional carrying capacity versus a noticeable increase in wind noise, especially at highway speeds. The open-grid design, while excellent for drainage and versatility, creates turbulent airflow that resonates through the crossbars and into the cab. This noise isn’t just an annoyance; it can lead to driver fatigue on long journeys and disturb conversations. The good news is that a simple, low-cost noise reduction foam mod can drastically cut that wind roar, making your roof-overhead-storage silent and efficient.
Before diving into the DIY solution, it’s crucial to understand that noise from your RVStow basket is primarily aerodynamic, not mechanical. Loose straps, shifting gear, and the basket’s own edges catch air. This guide focuses on the foam mod that addresses the fundamental cause, a method proven by hundreds of owners to reduce perceived noise by 50-70%. For a comprehensive understanding of maintaining your basket’s integrity, refer to our RVStow Roof Rack Cargo Basket Salt Corrosion Prevention Guide before applying any foam.
What Type of Foam Works Best for This Mod?
Not all foam is created equal for outdoor use. You need a material that can withstand UV exposure, rain, and extreme temperatures without degrading, becoming brittle, or absorbing water. The ideal choice is closed-cell polyethylene foam, commonly sold as “pipe insulation” or “weatherstripping tape.” It has a dense, smooth surface that doesn’t soak up moisture, preventing mold and weight gain. Avoid open-cell foams like typical mattress toppers or sponge; they will act like a sponge, adding pounds of water and eventually rotting.
For the RVStow Roof Rack Cargo Basket, you’ll need two primary shapes: a flat tape for sealing the basket’s leading edge against the crossbars, and a rounded strip to fit into the natural gaps. A 2-inch wide by 1/2-inch thick strip of closed-cell foam is perfect for the front edge. For the side rails, consider a thinner, 1/4-inch strip to fill the space between the basket and the vehicle’s roof rails (if applicable). You can find this at any hardware store or online for under $15 locally.
To enhance your basket’s organization after reducing noise, consider combining this mod with the RVStow Roof Rack Cargo Basket Inner Divider Mod: Organize Gear & Prevent Shifting to keep gear from rattling around.
How to Install the RVStow Roof Rack Cargo Basket Noise Reduction Foam
This is a straightforward DIY project that takes under an hour. The core principle is to create a smooth, aerodynamic surface along the front and sides of the basket, blocking air from rushing through the small gaps and hitting the crossbars.
- Tools & Materials: You will need a roll of 2-inch wide closed-cell foam tape (adhesive-backed), a utility knife or sharp scissors, a measuring tape, isopropyl alcohol, and a clean rag.
- Step 1: Clean the Surfaces. Use the isopropyl alcohol and rag to thoroughly clean the front edge of the basket and the top of your vehicle’s roof crossbars where the basket mounts. Remove all wax, dirt, and debris. Let it dry completely.
- Step 2: Measure and Cut. Measure the entire width of your basket’s front leading edge. Cut a strip of foam tape to this exact length. For a perfect fit, cut the ends at a slight angle to allow for a seamless wrap around the corners.
- Step 3: Apply the Foam. Peel the backing from the foam tape. Carefully align it along the bottom of the basket’s front edge, pressing it firmly into place. The goal is to create a gasket that presses against the top of the crossbar when the basket is mounted.
- Step 4: Address Side Gaps. Measure the side rails of the basket. Apply a thinner strip of foam tape to the inside of the side rails, filling the gap between the basket and the vehicle’s roof rails. This stops side winds from creating a whistle.
- Step 5: Re-mount and Test. Re-attach your RVStow basket to your roof rack, using the correct torque. For exact bolt specifications, see our RVStow Roof Rack Cargo Basket Torque Specs & Bolt Tightening Sequence. Drive at various speeds and note the dramatic difference.
Does This Mod Affect Load Capacity or Stability?
A common concern is whether adding foam compromises the structural integrity or weight limits of the RVStow Roof Rack Cargo Basket. The answer is a definitive no. The foam is purely an aerodynamic and acoustic accessory; it does not bear any load. Your basket’s dynamic and static load ratings remain unchanged, as specified by the manufacturer. The foam simply fills air gaps and does not interfere with the mounting hardware or the basket’s rigid frame.
In fact, by reducing wind drag and pressure, you may actually improve stability at higher speeds. Less air resistance means less force acting on the basket and your vehicle’s roof. Additionally, the foam acts as a protective cushion, preventing metal-on-metal contact between the basket and your crossbars, which can eliminate another source of vibration and rattling noise.
For those carrying awkward items like camping chairs, a stable platform is crucial. Pair this noise mod with our guide on RVStow Roof Rack Cargo Basket Secure Camping Chairs Mod: Keep Chairs from Shifting for a completely silent and secure setup.
Comparing Foam Types: Which Is Best for Your RVStow Basket?
To help you decide, here is a direct comparison of the most common foam materials owners use for this mod. The table below breaks down their durability, cost, and performance in real-world conditions.
| Foam Type | Material | UV Resistance | Water Absorption | Cost (per 10 ft strip) | Noise Reduction | Lifespan (years) |
|---|---|---|---|---|---|---|
| Closed-Cell (Recommended) | Polyethylene | Excellent | 0% (non-porous) | $8 – $15 | High (60-70% reduction) | 3-5 |
| Silicone Tape | Silicone rubber | Excellent | 0% | $12 – $25 | Very High (70-80% reduction) | 5-7 |
| Open-Cell (Avoid) | Polyurethane | Poor (degrades quickly) | High (absorbs water) | $3 – $8 | Medium (deteriorates) | <1 |
| Rubber Weatherstripping | EPDM Rubber | Good | Low | $10 – $20 | Medium (40-50% reduction) | 3-4 |
As the table shows, closed-cell foam offers the best balance of cost, ease of installation, and long-term performance for most owners. Silicone tape is a premium upgrade but can be harder to apply due to its lack of adhesive backing. Stick with closed-cell for a hassle-free DIY mod.
What Owners Say About the Noise Reduction Mod
The RV community has embraced this mod enthusiastically. On major RV forums and social media groups, owners of the RVStow Roof Rack Cargo Basket report transformative results. A common sentiment is that the basket “went from being a constant drone to nearly silent.” Many note that highway mileage improved slightly (by 1-2 mpg) due to reduced aerodynamic drag, a secondary benefit of smoothing the airflow.
One owner, a full-time RVer, shared: “I was about to remove my basket because the noise was driving me crazy on a 10-hour drive. I spent $12 on pipe insulation and some adhesive. Now I can hear my radio clearly at 75 mph. Best mod I’ve ever done.” Another user highlighted the simplicity: “If you can cut a straight line with scissors, you can do this mod. It’s foolproof.”
Owners also appreciate how the foam prevents the basket from scratching the roof rack’s crossbar paint. This dual-purpose benefit—noise reduction plus paint protection—makes the mod a no-brainer. For additional protection against weather, check out the RVStow Roof Rack Cargo Basket Sun Shade Mod: Protect Gear from UV Damage for long-term care of your basket and gear.
Frequently Asked Questions
Q1: Will the foam mod void my RVStow basket’s warranty?
A1: No, this mod does not alter the structural components of the basket. The foam is applied to the basket’s frame and does not involved drilling, cutting, or modifying the metal. However, always check your specific warranty terms if you are concerned. The foam itself is a non-invasive accessory.
Q2: Can I use this foam mod for transporting wet gear like kayaks or surfboards?
A2: Yes, closed-cell foam is waterproof and won’t absorb moisture. It will not degrade or become heavy if you transport wet items. However, ensure your gear is properly tied down to prevent shifting that could damage the foam. For carrying wet gear without leaks, see our guide on RVStow Roof Rack Cargo Basket Utility Basket Mod: Carry Wet Gear Without Leaks.
Q3: How do I remove the foam without leaving sticky residue?
A3: Closed-cell foam tape with high-quality adhesive (like 3M VHB) can be removed by heating it with a hairdryer or heat gun on low setting. Gently peel it off. Any remaining adhesive can be cleaned with isopropyl alcohol or Goo Gone. Avoid using harsh chemicals that could damage the basket’s powder coating.
Q4: Do I need to replace the foam periodically?
A4: Yes, over time, UV exposure and weather can cause the foam to lose its flexibility and adhesive strength. Typically, you should inspect the foam every six months. Replace it every 2-3 years, or sooner if you notice cracking, peeling, or a return of wind noise.
Q5: Will this mod work on any size of RVStow Roof Rack Cargo Basket?
A5: Absolutely. The technique applies to all basket sizes—small, medium, or large. Simply measure the front and side edges of your specific basket model and buy enough foam to cover those lengths. The installation steps remain identical regardless of basket dimensions.
Q6: Can I combine this mod with other noise reduction methods?
A6: Yes, for maximum silence, also secure all gear with tightening nets or bungee cords to prevent internal rattling. Adding a wind fairing to the front of the basket further reduces noise. The foam mod handles the base aerodynamic noise, while these additions tackle gear-specific sounds.
