NUBAR GFRP Rebar vs Steel: Why Value Fencing® Leads in Coastal and National Construction

Rust-Proof Coastal Fencing Revolution: Value Fencing® PVC Meets NUBAR® GFRP Rebar

Coastal homes and developments face unique challenges when it comes to fencing. The salt-laden sea air, high humidity, and harsh sun can wreak havoc on traditional materials - metal fences rust away and wooden fences rot or warp, leading to constant maintenance and early replacement. For homeowners, building contractors, construction professionals, and property developers in these regions, a beautiful fence can quickly turn into an eyesore or a safety hazard if it can't withstand the environment. The good news? A revolutionary solution has arrived that eliminates rust, rot, and repainting from the equation, ensuring fences stay as pristine and strong as the day they were installed.

Enter Value Fencing® PVC and NUBAR® GFRP (Glass Fibre Reinforced Polymer) rebar - a powerful combination that is transforming coastal construction in South Africa and beyond. Value Fencing's premium PVC fencing systems, reinforced internally with advanced NUBAR GFRP rods, deliver zero-maintenance, corrosion-proof performance with the strength to weather any storm. This article explores why this pairing is a game-changer for coastal properties (while benefiting inland projects too), and how it offers homeowners and professionals a long-term, lifetime-guaranteed fencing solution. From rust-proof reinforcement to UV-resistant PVC designs, we'll dive into the technical advantages and real-world results that make Value Fencing and NUBAR the ultimate choice for anyone seeking a durable, stylish, and worry-free fence.

Why Coastal Fences Fail: Rust, Rot, and Endless Upkeep

Living by the coast has its perks - gorgeous views and a pleasant climate - but it's no friend to conventional building materials. If you've ever seen a metal gate by the seaside, you've probably noticed peeling paint, orange-brown rust stains, or even broken sections. Salt spray and moisture cause steel and iron to corrode aggressively, eating away at their integrity. Even galvanized steel, which has a protective zinc coating, eventually succumbs to rust once the coating wears thin. This corrosion doesn't just look bad; it weakens the fence and can lead to structural failure or dangerous collapses over time. Similarly, wooden fences in coastal areas absorb moisture and can swell, warp, or decay. They often require regular painting, sealing, or even replacement of rotten posts and panels - a costly, labor-intensive cycle.

Steel vs GFRP - Coastal Conditions: The image above illustrates the stark difference in coastal performance: steel reinforcement (left) heavily rusted by salty air, versus fiberglass rebar (right) that remains untouched by corrosion. Rust isn't just a cosmetic issue - when steel rebar inside a fence post rusts, it expands and can crack the surrounding concrete and PVC. This leads to loosening, instability, and ugly staining. In coastal construction, traditional steel has reached the limits of what it can offer; it simply can't deliver long-term durability in extreme saline conditions. Homeowners and developers are thus caught in a cycle of repairs and repaints, trying to extend the life of fences that were never meant for such a harsh environment. Clearly, coastal fences need a better solution - one that won't rust, rot, or require constant upkeep, no matter the weather. That's where modern materials like PVC and GFRP come into play.

NUBAR® GFRP Rebar: The Rust-Proof Reinforcement Revolution

The backbone of any fence (literally) is its support structure - posts and any internal reinforcement. NUBAR® GFRP rebar is an innovative material that is redefining how we reinforce structures in corrosive environments. But what exactly is GFRP rebar? GFRP stands for Glass Fibre Reinforced Polymer, a composite of high-strength glass fibers bound in a durable resin. In the case of NUBAR (a leading South African GFRP brand), the resin is typically a thermoset plastic like vinyl ester or epoxy, forming rods that look like steel rebar but behave very differently.

Unlike steel, GFRP will never rust - not even in extreme coastal conditions. This is a game-changer: no rust means no weakening of the reinforcement and no expansion that cracks the surrounding concrete. A fence post reinforced with GFRP rebar retains its full strength for decades, whereas one with steel may slowly deteriorate from the inside out. In fact, NUBAR GFRP is completely corrosion-resistant, even in marine environments, translating to fewer repairs and a longer lifespan for any structure that uses it.

Beyond corrosion resistance, GFRP offers a host of benefits that directly address the pain points of coastal construction:

• Higher Strength: NUBAR GFRP rebar provides up to three times the tensile strength of steel (by weight). This exceptional strength means it can support heavy loads and withstand impacts without deforming. Unlike steel, which can corrode or lose strength over time, GFRP maintains its performance over the entire lifespan of the structure. In engineering terms, GFRP's tensile strength can exceed 800-1000 MPa, compared to typical mild steel around 450 MPA - a remarkable improvement. In the bar chart above, you can see a comparison: GFRP rebar (green) has significantly higher tensile strength than both standard mild steel and even galvanized steel, all while being immune to rust.
• Lightweight and Easy Handling: GFRP is roughly 75% lighter than steel - only about one-quarter the weight for the same volume. Construction crews immediately feel the difference: rods that are easier to carry, transport, and install. For fencing projects, this means faster installation times and lower labor costs, with less heavy lifting and reduced risk of on-site injuries. A single person can often handle a GFRP reinforcement rod that would have taken two or three people (or machinery) if it were steel. For contractors, this is a major advantage in efficiency.
• Non-Conductive & Non-Magnetic: Because it's made of polymers and glass fiber, GFRP rebar does not conduct electricity and is non-magnetic. In a fencing context, this can be a bonus for certain projects - for example, around sensitive electronic equipment, power installations, or metal detectors, GFRP won't cause interference or pose a stray shock hazard. It's even being used in high-tech facilities like data centers and rail infrastructure for this very reason. While a typical residential fence may not demand electromagnetic neutrality, this property showcases GFRP's versatility for all kinds of construction.
• Flexible and Customizable: GFRP can be manufactured in a variety of shapes and can even be pre-formed into curves or stirrups before it cures. This means custom fence designs or unusual architectural features are easier to achieve. Traditional steel rebar must be bent with heavy tools and tends to "spring back" due to its elasticity, but GFRP can be made to hold whatever shape is needed without compromising strength. For creative architects and developers, this flexibility opens doors to designs that steel would complicate.
• Lower Environmental Impact: Producing GFRP rebar generates fewer carbon emissions and uses less energy than producing steel rebar of equivalent strength. Steel manufacturing is energy-intensive (involving mining iron ore, high-temperature furnaces, etc.), whereas GFRP's production process is comparatively cleaner. Moreover, because GFRP-reinforced structures last longer, they don't need to be replaced or repaired as often, which further reduces environmental impact over the structure's life. Choosing NUBAR GFRP is a step toward sustainable building, aligning with green building standards and long-term climate resilience goals. (Even transport of GFRP is greener - its light weight means fewer fuel emissions during shipping.)
• No Scrap Value = Theft Deterrent: An interesting practical perk - GFRP has zero metal scrap value. Unfortunately, theft of steel components (for resale as scrap metal) can be a problem on some construction sites. GFRP's fiber-plastic composition isn't worth anything to scrap thieves, so there's much less risk of your reinforcement "walking off" from a site. And since each NUBAR rebar can even be tagged or marked (e.g., with RFID or batch numbers), materials can be tracked easily. While fencing projects might not face the same theft issues as big infrastructure works, it's reassuring to know that the critical parts of your fence are unlikely to disappear or be tampered with.

In summary, NUBAR® GFRP rebar directly tackles the shortcomings of steel in coastal construction: it does not rust (solving the biggest problem), it's stronger and longer-lasting, it's lighter and easier to work with, and it even offers sustainability advantages. It truly is "the next generation - lighter, stronger and more resilient" reinforcement. By replacing steel with NUBAR GFRP in fence posts and other structures, Value Fencing is ensuring that the skeleton of your fence will never be the weak link, even by the seaside.

Value Fencing® PVC Systems: No Maintenance, Maximum Durability

While the reinforcement inside the fence is critical, let's not forget the fence itself - the panels, pickets, rails, and posts that make up the visible structure. Value Fencing® specializes in PVC (vinyl) fencing, a product that in its own right is tailor-made for coastal and low-maintenance living. Unlike wood, PVC will not rot, warp, or splinter. Unlike metal, it will never rust or need painting. In fact, Value Fencing's uPVC (unplasticized PVC) formulation is UV-resistant and weatherproof, engineered to withstand South Africa's coastal and inland climates without cracking or fading. This means the fences stay white and glossy for years on end, with no discoloration or brittling even under the harsh African sun.

To appreciate how durable these PVC fences are, consider the technical enhancements Value Fencing has made to the material: their PVC contains a high concentration of TiO₂ (titanium dioxide) as a UV stabilizer and impact modifier, at four times the industry standard level. TiO₂ is the ingredient that keeps PVC from degrading under ultraviolet light. By formulating their vinyl with this extra UV protection, Value Fencing ensures the profiles won't chalk (turn powdery) or yellow over time. In fact, they confidently state that their product will last well in excess of 50 years under normal conditions. It's also made from virgin PVC (not recycled scraps), which gives it consistent quality and strength. All Value Fencing materials are ASTM certified specifically for fencing use and carry a direct 20-year guarantee from the manufacturer - a strong vote of confidence in their longevity.

From an installer's perspective, PVC fencing is a dream: it requires no painting, no priming, and no sealing - ever. Once installed, the only "maintenance" is the occasional wash down with a hose or soapy water to remove dust or dirt buildup. There's no concern about termites or pests (in the case of wood fences), and no worries about rust bleeding onto walls or paving (in the case of iron fences). The PVC is also fire-retardant (it has a high ignition temperature and self-extinguishes once the flame source is removed), adding a safety bonus. For homeowners, this all translates to peace of mind and cost savings - you invest in a quality fence once, and it stays beautiful year after year without costly upkeep.

The Value Fencing Construction Difference

A fence is only as strong as its installation. This is another area where Value Fencing sets itself apart, marrying the strengths of PVC and GFRP to create a rock-solid final product. Every Value Fencing project uses an installation method designed for maximum stability and longevity:

• Concrete-Filled Posts: Unlike some light-duty fencing that might just stake posts into the ground, Value Fencing sets every post in concrete. They use a high-strength 25-30 MPa concrete mix (comparable to what's used in building foundations) to anchor the posts deeply in the ground. Moreover, for taller structures like balustrades, the posts themselves are filled with concrete as well, essentially creating a reinforced concrete core inside the PVC sleeve. This approach ensures the posts won't budge, even under high wind loads or impacts.
• Rebar Reinforcement with Epoxy: In the footing of each post, reinforcement rods (rebar) are embedded for extra strength, secured with industrial epoxy resin into the drilled holes or foundation. Originally, galvanized steel rebar was used, but today Value Fencing uses NUBAR GFRP rebar for coastal installations to guarantee 100% rust-proof posts from the inside out. Typically, two rebars (for example, Y8 or Y10 size, which are ~8-10 mm diameter) are placed in each post and extended into the concrete footing. These rods tie the post and footing together as one solid unit. The epoxy ensures a waterproof bond so that moisture can't sneak down along the rebar into the foundation. The result is a fence post that's rigid, secure, and built to last - essentially a steel- (or GFRP-) reinforced concrete pillar hidden inside a PVC exterior. This robust construction is one reason Value Fencing's systems can withstand heavy loads and even accidental impacts without damage.
• Engineered Designs & Safety Compliance: Value Fencing doesn't just claim their fences are strong - they have the data to back it up. Their PVC balustrade design, for example, was independently tested with a 40 kg sandbag pendulum swung from 1.6 m height, simulating a heavy impact (akin to someone forcefully falling against a railing). It passed the test - in fact, it's the only local PVC balustrade system to pass that rigorous 40kg pendulum impact test to date. This means it meets the National Building Regulations requirements (SANS 10400D) for guardrails, so you can trust it for balcony or stair use where safety is critical. All designs conform to the relevant building codes (spacing of pickets, heights, strength, etc.), and Value Fencing even publishes certificates and engineering drawings to assure professionals that standards are met or exceeded. For pool fencing, to give another example, their products are designed to comply with pool safety bylaws - e.g. self-closing gates with child-proof latches, correct fence heights, and no gaps over 100 mm. In short, these fences are not just "good enough" - they're purpose-built to be the best and safest in their class.
• Quality Control and Expertise: With over 16 years in the business, Value Fencing pioneered PVC fencing in South Africa. The company introduced many of the standard styles and installation techniques that have now become common in the industry - effectively setting the benchmark for quality. They are the largest PVC fencing outfit in Africa and have a well-trained in-house installation team (no subcontractors) to maintain high workmanship standards. Every fence component, from posts to pickets to gate hardware, is chosen for durability (e.g. gates use internal aluminum inserts and stainless steel latches where needed to ensure strength and longevity). This obsessive focus on quality is why Value Fencing confidently offers a Limited Lifetime Warranty on their PVC products - they know it will last. When you invest in a Value Fencing system, you're getting a solution devised by experts and proven in thousands of installations.

Strength and Style That Lasts - From Coastal Estates to Nationwide Projects

One of the best ways to judge a product is by looking at real-world performance. Value Fencing's PVC and NUBAR-infused systems have amassed an impressive track record across South Africa and Namibia, in climates ranging from salty sea air to intense inland heat. The results speak for themselves: these fences truly go the distance.

Take the KwaZulu-Natal North Coast (the Dolphin Coast) for example - a region with relentless coastal conditions. Along the Ballito and Salt Rock seaside promenades, Value Fencing PVC palisade fences and gates have been standing strong for over 15 years, exposed daily to sun, salt, and storms. Walk past almost any residential complex there, and you'll see the white PVC fences still looking as good as new - no rust patches, no rot, no peeling paint. This kind of longevity in a coastal environment is practically unheard of with traditional fencing. As Value Fencing notes, some of those installations are more than a decade old, yet their condition is a testament to the material's durability. Homeowners in those complexes haven't had to worry about replacing rotten pickets or sanding off rust - their fences have kept their "just installed" appearance and strength through the years.

It's not just homes - property developers and estate managers are also leveraging these benefits at scale. Many exclusive estates and commercial developments have made Value Fencing their go-to supplier for gates, balustrades, and perimeter fencing. For instance, prestigious communities like Mount Edgecombe, Kindlewood Estate, Zimbali, and Ilala Ridge in KZN have Value Fencing installations (from classic picket fences to louvered screens and pergolas) as standard features. They chose PVC and GFRP reinforcement because it maintains the estate's upscale look year after year without constant upkeep, and it avoids the common issues that upset residents - such as rust stains on walls or the safety risk of wobbly, decayed fences. Even public facilities have taken notice: the Kingsmead Cricket Stadium in Durban entrusted Value Fencing to install durable PVC balustrades in their spectator areas. And in the Cape region, Value Fencing's new permanent exhibition at The Building Centre in Cape Town showcases their products' strength and elegance, including estate-style balustrades reinforced with 30MPa concrete and NUBAR® GFRP rebar (a corrosion-proof alternative to steel). It's a hands-on testament that these systems aren't just marketing hype - they truly deliver on promises of strength and beauty.

Crucially, coastal area clients have driven innovation. Recognizing the severe demands of the seaside, Value Fencing made a landmark decision: as of 2025, all their coastal installations now use NUBAR GFRP rebar exclusively for reinforcement, completely eliminating the risk of internal post corrosion. This proactive move - essentially saying "no more steel in coastal fences, period" - is an industry first in Southern Africa and underscores the company's commitment to providing the best possible lifespan for your investment. Coastal homeowners and builders can now rest assured that every part of their fence, from the outside PVC to the inside reinforcement, is 100% immune to rust. And while the focus is on coastal durability, even inland projects benefit from the superior materials (for example, GFRP's non-metallic makeup avoids potential issues with ground conductivity or stray currents near electrified security fences, etc.). No matter where your property is - by the ocean, in the humid subtropics, or the dry interior - a Value Fencing PVC system with NUBAR rebar will stand the test of time with minimal care.

Aesthetics have not been sacrificed for all this durability, either. Value Fencing offers a wide range of styles to suit different architectural themes and functional needs. From white picket fences that exude classic charm, to privacy screens and louvered panels that provide a modern look, to pergolas and arbors that can transform outdoor spaces - all are available in maintenance-free PVC. These designs are estate-approved and adhere to guidelines of high-end communities (height, style, color), meaning property developers can confidently include them knowing they'll meet HOA or estate rules. The clean, white finish of the PVC also complements any color scheme and boosts curb appeal, without ever needing a fresh coat of paint. Because the color is integrated into the material and UV-protected, it won't peel or flake even after decades. In coastal towns where the sun can be intense, that's a huge plus - fences stay bright and don't chalk out.

Lastly, it's worth noting the long-term value equation. While the upfront cost of premium PVC fencing with GFRP reinforcement may be higher than some cheaper alternatives (like raw timber or light steel wire fences), the lifetime cost is often much lower. There are no recurring painting expenses (which, for a large fence, can be significant every couple of years), no replacement of rusted sections, and far less likelihood of needing repairs due to environmental damage. The fence essentially pays for itself through what you save in maintenance and early replacement. Additionally, a durable, attractive fence adds to the property's value - it's an investment that enhances security and aesthetic appeal, which are key selling points for homes and developments. Buyers and tenants alike appreciate when a property is equipped with quality features that won't become their problem down the line. In this sense, opting for Value Fencing PVC with NUBAR rebar isn't just a purchase, it's a wise investment in the property's longevity and desirability.

Ready to Build a Rust-Proof Future? - Contact Value Fencing

In the world of fencing, **Value Fencing® and NUBAR® GFRP have proven that "maintenance-free" and "coastal-proof" are no longer a fantasy - they are a tangible reality backed by engineering and experience. Homeowners can finally enjoy a gorgeous white picket fence by the beach that stays white and sturdy through the seasons. Building contractors and construction professionals can hand over projects knowing the fences will remain solid and compliant for decades, reducing call-backs or client complaints. Property developers can create entire coastal estates with a uniform, upscale look, confident that the infrastructure will hold up over time and protect their reputation for quality.

If you're planning a new fence, railing, or outdoor project - whether on the coast or inland - it's time to future-proof your investment. Don't settle for materials that will disappoint you in a few short years. Embrace the innovation of Value Fencing's PVC paired with NUBAR GFRP rebar and enjoy the benefits of zero maintenance, zero rust, and zero worries. This is not just an upgrade; it's a fundamental rethinking of how we build for longevity and value.

Ready to take the next step? Value Fencing's experts are available for consultations to help tailor a solution for your property's needs. With franchised operations across South Africa and Namibia, you can get professional guidance and service no matter your location. Reach out through the Value Fencing contact form to connect with your nearest team and schedule a free assessment of your site. Simply visit Value Fencing Locations to find a branch near you and request a consultation. Let their knowledgeable consultants show you how Value Fencing PVC and NUBAR GFRP will be the last fence you ever need - offering an unbeatable mix of beauty, strength, and peace of mind for years to come. Secure your property the smart way today, and enjoy the coastal lifestyle without the maintenance headaches!

Sources & Relevant links:

connectmenow.co.za

nubargfrp.co.za

SEE GFRP Types & Comparisons - Why is roped / Ribbed GFRP Better