When a floor hatch has to combine fire resistance, seismic design, RC4 security, heavy loading and concrete-frame coordination, it becomes a structural, fire, security and certification interface.

“10 kN/m²” does not tell the whole loading story. Learn how to specify floor hatch imposed loads, point loads, wheel loads and equipment loads correctly.

A typical plant engineering enquiry starts with a simple question: “Can you do a 700 x 700 hatch that opens under weight?”

Specify a hatch late, and it becomes a site coordination problem. Specify it early, and it becomes part of the building controls strategy.

If you’ve searched for a “retractable ladder”, “ZIP ladder” or “hatch and ladder”, you’ve probably noticed most advice online is aimed at domestic loft ladders. This guide is written for contractors and architects coordinating access from corridors, ceilings and plant areas, where the ladder must work with the opening build-up, the ceiling void and how people actually use the access point.

Confused by 0.36 vs 0.74 kN/m? This guide explains UK guardrail load ratings for roof hatches, how Part K relates to BS 6180, where ISO 14122-3 fits, and what to include in enquiries to avoid RFIs.

In UK specifications this is often referenced as BS EN 12101-2. If you are reviewing datasheets, test evidence or submittals, you will keep seeing letter/number codes such as RE 1000, SL 500, WL 1500, T(-15) and B300.

If your enquiry is basically one line – “key switch”, “wiring diagram”, or “commissioning” – you’re not alone. Those are some of the most common phrases we see from contractors and commissioning engineers.

If you’ve ever sent (or received) an email that simply says “300mm upstand”, “concrete upstand”, “curb liner” or “upstand detail”, you’re not alone.

Design notes often say “provide 1.0m² / 1.5m² free area” – but do they mean geometric free area or aerodynamic free area (Aa)? This practical guide shows how to interpret each, avoid common sizing mistakes, and work through examples using declared SRH-PAOV performance data.

The short answer: Never use the phrase “opening size” on its own. It is the most common cause of ordering errors. Always specify whether your dimension is the structural opening, the clear opening, or the overall footprint.

Modern sustainable roofs act as a fifth elevation. They manage water, support biodiversity, and generate electricity. Green roofs and rooftop solar have made routine access and fire safety more complex. A fire-rated roof hatch maintains compartment lines during a fire and still allows safe, regular access for planters, PV maintenance, and drainage checks.

Smoke and heat in the first minutes of a fire threaten life, obscure escape routes, and stress a building’s structure. Well-planned smoke ventilation protects routes to safety, buys time for firefighters, and limits heat build-up at roof level and around critical plant.

This guide explains how Europe’s EN 12101 standards govern natural smoke and heat exhaust ventilators (NSHEVs), how national rules adopt and apply those tests, and how other regions approach compliance.

Fire safety is a non-negotiable cornerstone of building design and construction in the UK. While many are aware of active systems like alarms and sprinklers, the fundamental principles of structural fire integrity form the bedrock of occupant safety. This is governed by the UK’s statutory guidance, Approved Document B (Fire Safety), a comprehensive set of regulations that all architects, specifiers, and builders must master.

Fire safety is paramount in UK building design, with smoke ventilation systems playing a critical role in protecting occupants. Smoke ventilation systems are not just a component but a critical life-safety measure.

The updated BS 9991:2024 standard represents a significant advancement in fire safety for residential buildings in the UK. This article provides a comprehensive overview of BS 9991:2024, its key changes, and how Surespan’s smoke ventilation solutions ensure compliance and enhance safety. This guide is particularly useful for architects, fire safety engineers, building managers, installers, and building owners.

Roof hatches are essential in modern construction, providing safe and functional access to rooftops for maintenance, inspections, and emergency egress. Whether for residential, commercial, or industrial projects, specifying the right roof hatch is crucial for balancing safety, compliance, and accessibility throughout a building’s lifecycle. Surespan offers a versatile range of roof access solutions designed to meet these needs, with a strong emphasis on quality, durability, and bespoke customisation.

Floor hatches, or floor access doors, are indispensable for accessing underground spaces, mechanical systems, or storage areas in both commercial and residential settings. Designed for functionality and durability, Surespan’s range of floor hatches has become a trusted choice for architects, builders, and contractors. With extensive expertise and a commitment to innovation, Surespan offers customisable solutions that meet the specific demands of modern construction projects in the UK and beyond.

When it comes to smoke ventilation in buildings, understanding the different types of “free areas” is crucial for safety and compliance.

A roof access hatch is a specialised opening constructed in a building’s roof, most commonly a flat roof, designed to provide safe, convenient, and controlled access to the rooftop. It essentially functions like a secure door to your roof, serving a variety of critical purposes from essential maintenance and inspections to enabling the use of rooftop spaces for leisure or

Access solutions business Surespan’s new factory in Aldridge has been opened by West Midlands Mayor Andy Street and Aldridge-Brownhills MP Wendy Morton.

Describing when a Smoke Ventilation System is necessary and why you should specify Surespan for your next project.

Surespan, a leader in the design and manufacture of safe access and escape solutions, is thrilled to announce its participation in the 17th annual National Apprenticeship Week (NAW) from Monday, 5 to Sunday, 11 February 2024.

Surespan, an internationally recognised and leading manufacturer of both standard and bespoke access solutions, are proud to announce further expansion to their global network.

I am delighted to announce that Surespan Limited has acquired the SustainableHomes.co.uk domain, previously home to one of the UK’s most respected sustainability resources in the housing sector. This strategic acquisition allows us to build upon a digital legacy of environmental excellence while bringing Surespan’s expertise in sustainable building solutions to a wider audience.

Surespan are pleased to announce the launch of our apprenticeship programme here at Surespan, a renowned leader in the design and manufacture of safe access and escape solutions.

Surespan, global leaders of innovative access and escape solutions are pleased to announce the successful acquisition of Sunsquare, a prominent player within the Skylight Industry.

Leading manufacturers of roof and floor access solutions Surespan Ltd are proud to announce that they have successfully gained ISO 14001:2015 certification in Environmental Management System.

Fire safety is so important and it’s vital to make sure you have the correct smoke ventilation for your property.

Companionway ladders, blending stair and ladder features, are designed for stable and flexible access in both internal and external spaces. These ladders, sloping between 65° and 75°, offer a safe solution in areas where traditional stairs or vertical ladders won’t fit. Compliant with British Standards, our range caters to specific project needs, ensuring safety and compatibility with various roof hatches.

Floor ducting lets you easily access pipes and cables under solid floors. Once installed, you can lift out small sections for repairs or maintenance. It’s ideal for timber floors, and can handle heavy loads without concrete infill. The modular aluminium design is easy to install and customise.

Surespan have created a quick and easy guide on how to choose the right roof hatch for your project.

A quick guide on specifying a Roof Hatch with Surespan and an answer to many Roof Hatch FAQs.

Polyisocyanurate or Mineral Wool insulation? Surespan explain the differences in-depth.

Do you need a Roof Access Hatch but you have height restrictions? We may have the perfect solution for you.