The Hidden Costs of Welding: Why Freestanding Modular Guardrail Systems Save More Than Time

When working at height, safety is not optional. Whether you manage an industrial facility, a commercial building, or a maintenance contract, protecting employees on flat roofs is a legal and operational priority.

While traditional welded guardrails were once the standard, freestanding modular guardrail systems now offer a more practical and cost-effective alternative. Designed to comply with BS EN 13374 and BS 13700, these systems deliver collective protection with fewer components, no roof damage, and greater flexibility.

This article explores the often-overlooked costs of welded solutions — and why freestanding guardrails are the smarter, safer option.

The Hidden Costs of Welding for Roof Safety

Labour and site disruption

Welding a guardrail system into place requires certified operatives, hot work permits, and time-consuming setup. In many environments, this causes major disruption to ongoing operations. Roofing warranties can also be voided by penetration, and welding near sensitive rooftop equipment introduces further risk.

By contrast, freestanding guardrail systems are constructed using minimal components, requiring no hot work and no roof surface drilling. Assembly is quick and can often be completed without interrupting other activity on site.

Safety and environmental concerns

Welding on a roof introduces fire hazards, fumes, and the need for restrictive safety zones. In challenging weather or limited access conditions, the process becomes slower and riskier. There’s also an environmental cost, particularly on rooftops with green or insulated surfaces.

Freestanding modular systems avoid these hazards entirely. Their lightweight, galvanised steel tube structure uses Kee fittings that connect without welding or cutting, maintaining the safety of both the installation team and the building.

Long-term inflexibility

Welded guardrails are fixed. If your access routes, plant layout, or compliance needs change, the system becomes difficult — and expensive — to adapt or remove.

Freestanding systems, however, can be configured or extended with ease. Components can be reused, relocated, or adapted, offering maximum versatility for evolving sites or phased projects.

What Makes Fisher Alvin’s System Different?

Fisher Alvin’s Freestanding Roof Edge Protection System is a counterbalanced modular guardrail system, designed to protect workers at height without damaging the roof. It’s ideal for flat roofs and complies with both BS EN 13374 (Class A) and BS 13700:2021, depending on pitch requirements.

Key system features:

• Preassembled uprights for faster installation
• Galvanised malleable iron feet with protective rubber bases
• Curved PVC counterweights — no damage to roof membrane
• No drilling or mechanical fixings
• Available in powder coated finishes to suit your environment
• Built from standard Size 8 (48.3 mm) galvanised steel tube
• Installed using case-hardened zinc aluminium set screws or stainless steel screws
• All fittings conform to BS EN 1562, 1563, and ISO 1461

The system is supplied in modular form, ready for quick installation using standard tools. It suits a range of applications, from full perimeter protection to guarded walkways, equipment zones, or skylight surrounds.

Where Freestanding Guardrail Systems Excel

Fisher Alvin’s system is particularly suitable for:

• Flat roof maintenance access
• Rooftop plant and machinery zones
• Cold stores and green roofs where drilling is prohibited
• Short-term projects requiring rapid install and removal
• Sites with no structural fixing points

Its modular design allows the guardrails to be tailored for each application. You can create straight runs, corners, or returns using off-the-shelf components. The system stands freely, secured by its counterweight arms, with no structural anchoring required.

A Cost-Effective, Compliant Safety Solution

When comparing roof guardrails, cost isn’t just about the quote. It includes:

• Time and labour for installation
• Compliance with building regulations and safety standards
• Adaptability to site-specific layouts
• Avoidance of long-term damage to the roof surface
• Product lifespan and maintenance requirements

Freestanding modular systems offer a better return on investment in nearly every category. They’re easy to install, delivered pre-cut and preassembled, and they protect both your people and your roof.

Backed by Service and Speed

Fisher Alvin offers:

• Free design advice and layout guidance
• A cutting service for tube lengths
• All materials in stock for next-day delivery
• Advice on installation or specialist installers, on request
• Fast, accurate quoting — just send roof drawings and measurements

From start to finish, our team supports you with a reliable, well-stocked, and expertly tailored safety system.

Request a System Built for Your Roof

Freestanding modular guardrails are not just faster to install. They’re safer, more flexible, and fully compliant with modern BS and ISO standards. Whether you need to protect a walkway, create collective fall protection, or plan around rooftop equipment, Fisher Alvin can help you build the right solution.

Contact us today or request a quote for your flat roof project. Our systems are supplied complete, ready to install, and backed by over 15 years of trusted UK manufacturing.

Modular Guardrail Systems FAQs

1. What makes a freestanding modular guardrail system different from a fixed guardrail?

A freestanding modular guardrail system uses counterbalance weights to secure the structure without any drilling or mechanical fixings into the roof surface. In contrast, fixed guardrails are anchored directly into the roof or parapet, which may compromise waterproofing or insulation layers. Freestanding systems are safer for sensitive environments and offer easier reconfiguration.

2. Is the system suitable for all flat roofs?

Yes. Fisher Alvin’s system is specifically suitable for flat roofs and low-pitch applications. It complies with BS EN 13374 (max 5° pitch) and BS 13700 (max 3° pitch). The system is built to provide collective protection without damaging the structure, making it ideal for most commercial and industrial roof types, including green roofs and cold stores.

3. What components are included in a typical system?

Each system is supplied with:

• Preassembled uprights
• Kee fittings and key clamp components
• Galvanised steel tube (Size 8, 48.3 mm)
• Curved PVC counterweights
• Optional powder coated finishes

We also offer a cutting service and advice on configurations to create the layout that best suits your access and protection requirements.

4. Does the system comply with UK safety and building regulations?

Absolutely. Fisher Alvin’s freestanding guardrail system meets:

• BS EN 13374:2013 (Class A)
• BS 13700:2021
• Relevant building regulations and the Work at Height Regulations 2005

All fittings and tubes are manufactured to BS EN and ISO standards to ensure the highest level of safety, durability, and performance.

5. Can the guardrail system be tailored to unusual layouts or obstacles?

Yes. The system is fully modular and can be configured around skylights, plant areas, walkways, or changes in roof elevation. The use of minimal components and modular fittings allows for a tailored solution that maintains compliance and ease of installation, even on complex roof layouts.

6. How quickly can I install the system, and do I need a specialist?

Installation is simple and requires only basic tools — no welding or drilling. Each system is constructed using a lightweight design that two people can safely handle. While we recommend that installation is carried out by trained personnel, we can provide names of trusted installers on request. All systems are supplied from stock for next-day delivery, meaning you can start protecting your site without delay.