6 Best Windproof Clips For Exterior Covers For High Winds

Nothing ruins a weekend getaway or a long-term boondock faster than the frantic, rhythmic flapping of a loose exterior cover in a gale. When the wind picks up, substandard grommets tear away and cheap clips snap, leaving gear exposed and sanity frayed. Choosing the right hardware is the difference between a secure shelter and a shredded tarp.

08/12/2026 07:38 pm GMT

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Caragrip Tarp Clip: Best Overall Grip

The Caragrip stands out because it operates on a cam-locking principle rather than simple spring tension. By threading the fabric through the clip and locking the mechanism down, the grip actually tightens as wind resistance pulls on the tarp. It creates a mechanical hold that far exceeds the capabilities of standard plastic alligator clips.

For those dealing with thin, lightweight materials or standard blue tarps, this is the gold standard. It distributes force across a wider surface area, significantly reducing the risk of puncturing the material during high-velocity gusts. If the priority is a reliable, “set it and forget it” connection, this is the primary choice.

The tradeoff here is size; these clips are bulkier than their competitors and require a bit more clearance to install. However, for serious applications where the tarp must stay put, the added footprint is a small price for total peace of mind.

Kotap Tarp Grabbers: Most Adjustable

Kotap Tarp Grabbers excel in versatility, offering a unique sliding tensioner that allows for fine-tuning the drape of a cover. This design is particularly useful when covering irregularly shaped items, such as rooftop storage boxes or oddly proportioned bike racks on the back of a rig. The ability to pull the fabric taut after the clip is attached saves considerable time and frustration.

These are best for users who frequently adjust their setup based on varying weather conditions or changing cargo. Because the tension can be adjusted without un-clipping the entire mechanism, it simplifies the process of tightening a sagging cover during a multi-day storm. They provide a balance of ease and security that is hard to beat.

However, they are not intended for hurricane-force winds or massive, heavy-duty canvas covers. Use these for lighter, everyday protective needs where adjustability takes precedence over sheer holding power.

Camco Awning De-Flapper: Best for RVs

RVers understand that wind vibration is the silent killer of awning fabric. The Camco De-Flapper functions as both a clamp and a stabilizer, gripping the edge of the awning to provide structural rigidity. By breaking up the surface area of the fabric, it prevents the constant snapping that leads to micro-tears and eventual structural failure.

This device is essential for anyone spending extended periods in windy regions or high-altitude campsites. It is specifically engineered to protect expensive vinyl or acrylic awning materials from the wear caused by constant movement. If the goal is to prolong the life of an RV awning, this is a non-negotiable investment.

Installation is straightforward, but it does require careful alignment to ensure the pads do not damage the awning’s edge over time. Once locked into place, the difference in noise and wear is immediate and substantial.

Tarpco Safety Tarp Lock: For Extreme Winds

When the forecast calls for severe weather, the Tarpco Safety Tarp Lock provides the heavy-duty defense required. Unlike standard residential clips, these are built with a locking screw mechanism that bites deep into heavy-duty poly or PVC tarps. They are virtually impossible to dislodge once properly tightened.

This clip is the correct choice for stationary setups, such as semi-permanent equipment storage or long-term site covers. They are designed to withstand significant load-bearing force without slipping or deforming. Expect to use these where the risk of losing a cover could lead to significant property damage.

Do not use these on thin, budget-grade tarps, as the force they exert will easily tear through weak material. They are tools built for strength, meant for materials that can actually handle high-tension anchoring.

PONY A-Clamp: Best for Thick Materials

Sometimes, the simplest mechanical solution is the most effective. The PONY A-Clamp, often borrowed from woodworking, works exceptionally well for securing heavy, folded edges of thick canvas or reinforced vinyl. Their strong spring-loaded jaws provide a deep, reliable grip on materials too bulky for smaller, plastic tarp clips.

These are highly recommended for those using heavy-duty painter’s canvas or multi-layered gear covers. Because they are metal, they handle temperature fluctuations better than plastic alternatives, which can become brittle in extreme cold. They are rugged, durable, and offer a wide jaw capacity.

The downside is potential corrosion. If used in salt-air environments or wet conditions, these clamps require a light coating of lubricant to keep the springs and pivot points moving freely. Keep them as part of a utility kit, as their utility extends far beyond simple tarp management.

The Original Tarp-Clip: For Pricey Covers

The Original Tarp-Clip is the go-to for protecting premium, high-value covers where fabric integrity is paramount. Its design avoids the sharp teeth found on cheaper clips, utilizing a friction-based system that holds fast without puncturing the material. It is an excellent choice for custom-fit covers or high-end technical fabrics.

If the cover material is an investment, it makes little sense to use a cheap clip that will poke holes in it. This clip offers the best preservation of the cover’s structural integrity over long-term use. It is the refined, “do-no-harm” option for the discerning owner.

While they may not hold as much weight as a screw-locking metal clamp, they are perfectly sufficient for most wind conditions. Rely on these when aesthetics and fabric longevity are the primary design drivers.

Choosing the Right Clip for Your Cover

Selection begins with an assessment of the cover material itself. A heavy, reinforced PVC tarp requires a different mechanical approach than a thin, generic polyester sheet. The goal is to match the clip’s grip strength to the material’s tear strength to prevent premature failure.

Consider the environment and the duration of the deployment. For a weekend trip, quick-adjust clips are usually sufficient; for a winter storage season, heavy-duty screw-lock systems are mandatory. Always factor in the local wind profile—coastal or high-desert locations demand significantly more robust anchoring than sheltered, forested campsites.

Finally, evaluate the ease of removal. If the cover needs to be taken down quickly due to changing conditions, a screw-based system might be too slow. Balance the need for extreme hold against the practicality of daily operations.

How to Place Clips to Prevent Wind Billowing

Wind billowing is caused by trapped air building pressure beneath the cover, eventually finding a weak point to escape. To prevent this, clips must be placed at regular intervals along the perimeter, particularly at corners where stress is highest. Creating a taut, uniform tension across the entire surface is the primary goal.

Avoid the temptation to cluster all clips in one area. Instead, work from the center outward, pulling the material firm to ensure no large pockets of slack exist. Even a small amount of play can lead to a “snap” during a gust, which eventually transfers the entire load of the wind to a single point.

If the cover is exceptionally large, consider using a bungee cord system in conjunction with the clips. This introduces a small amount of “give” that absorbs sudden wind shocks, preventing the clips from being ripped off the tarp edge entirely.

Securing Your Cover Without Ripping It

The most common cause of shredded covers is a clip that is over-tightened or incorrectly installed on an unsupported edge. When applying a clip, fold the tarp material over itself once to create a double-thickness layer, which provides the clip with a stronger, more resilient surface. This simple step significantly reduces the likelihood of the clip puncturing or tearing the fabric.

Always ensure the clip is flush against the material. A clip hanging at an odd angle creates an unbalanced leverage point that will eventually work the material loose or snap the plastic teeth. Take the extra thirty seconds to ensure the clip sits flat and the fabric is evenly distributed within the jaw.

If you find that a particular clip is consistently pulling through the material, add a small piece of duct tape or specialized reinforced fabric tape to the underside of the clamping zone. This extra layer can provide the necessary structural reinforcement to keep the clip secure during high-wind events.

Wind Clip Questions? We Have Answers.

Are plastic clips durable enough for winter use? High-quality, UV-stabilized plastic is perfectly fine for winter, but be aware that extreme cold makes many plastics brittle. If you live in a climate where temperatures drop well below freezing, opt for metal clips to avoid breakage.

Do I need a clip for every grommet? Not necessarily. If your tarp is heavy-duty and the grommets are well-spaced, clips are usually meant to supplement the existing hardware, not replace it. Use them to bridge the gaps where wind has been known to peel the edge back.

What is the best way to clean my clips? Salt spray and dirt are the enemies of moving parts. A simple rinse with fresh water and a quick wipe-down with a silicone-based lubricant will keep the springs and locking mechanisms functional for years.

Investing in quality hardware is a small but critical step in protecting your living space from the elements. By selecting the right clip for your material and employing proper placement techniques, you eliminate the threat of wind-induced damage. A well-secured cover provides peace of mind, allowing you to focus on the experience rather than the integrity of your shelter.

Frequently Asked Questions (FAQs)

What are windproof clips for exterior covers?

Windproof clips for exterior covers are heavy-duty locking fasteners designed to clamp onto fabric edges and anchor tarps, grill covers, or patio furniture during severe weather. These clips typically use a screw-lock jaw or an alligator-tooth grip that tightens as wind tension increases. Unlike built-in elastic hems, high-wind clips distribute pulling force across a wider surface area to keep covers secured without tearing the material.

What wind speed can windproof clips withstand on outdoor covers?

Quality windproof clips can withstand sustained wind speeds between 40 and 70 miles per hour when paired with heavy-duty bungee cords or ground stakes. Their holding power depends heavily on clamp material, with nylon-blend resin and metal-reinforced screw clamps offering the highest resistance. In gusty conditions over 50 mph, combining clips with weighted anchor bags prevents sudden uplift that can rip grommets or thin fabrics.

How do you install windproof clips on outdoor furniture covers for high winds?

To install windproof clips on outdoor furniture covers, slide the clip jaw over a double-folded section of the hem and tighten the thumbscrew until snug. Next, loop an elastic bungee cord or cam-buckle strap through the clip’s tie-down hole. Anchor the opposite end of the strap directly to a solid furniture leg or an eye-bolt secured in a patio deck, keeping tension firm but not overstretched.

How do you keep exterior cover clips from damaging waterproof fabrics?

You can keep exterior cover clips from damaging waterproof fabrics by inserting a small piece of rubber or canvas between the clamp jaws and the cover. This buffer prevents sharp clamp teeth from puncturing thin vinyl or urethane coatings during heavy vibration. Alternatively, fold the cover fabric over twice before clamping to create a reinforced, multi-layer seam that distributes friction evenly.

Which is better for high winds, screw-lock tarp clips or push-lock snap clamps?

Screw-lock tarp clips are better for high winds because their threaded design allows you to adjust pressure manually and will not pop open under fluctuating air gusts. Push-lock snap clamps rely solely on spring or friction tension, which frequently slips when wind pulls at oblique angles. For exterior covers exposed to storms above 35 mph, thumbscrew-tightened clamps provide far superior grip and long-term hold.

How many windproof clips do I need to secure an exterior patio cover?

Most exterior patio covers require four to eight windproof clips to stay secure in strong storms. Place one clip at each bottom corner, and add extra clips every two to three feet along long, flat sides that catch wind. For large sectional sofas or dining sets over eight feet long, installing six to ten clips prevents wind from creating parachute pockets underneath the cover.

Why do windproof clips slip off exterior covers during storms?

Clips slip off exterior covers during storms primarily because the fabric was clamped along a single, slick layer or the tension line pulled parallel to the opening rather than downward. Wind vibration causes plastic teeth to lose purchase on smooth polyester. To fix this, fold the fabric hem over a cord or washer to create a raised ridge inside the clamp teeth before tightening the locking mechanism.

Are heavy-duty windproof clips worth buying for cheap vinyl covers?

Heavy-duty windproof clips are generally not worth buying for cheap vinyl covers because thin plastic fabrics often tear around the clamp points under high wind stress. Lightweight covers under 10 mils thick lack the tensile strength needed to withstand concentrated clamping pressure. For budget covers, securing the bottom with weighted sandbags or wide elastic tie-down cords around the entire perimeter prevents tears much more effectively.