THE VIEWPOINT - All about opinions

THREE THINGS TO CONSIDER WHEN SPECIFYING ROOF ACCESS HATCHES

When choosing roof access hatches for commercial or residential projects, there are a number of factors that must be addressed at the initial design stages in order to not only achieve a successful specification, but also deliver safe and sufficient access for the entire lifecycle of the building. Here Tony Stevens, Technical Estimator at Bilco UK, discusses which factors should be taken into consideration when selecting Roof Access Hatches:

1) Purpose for access - Whether for the education, healthcare, leisure or commercial sectors, roof access hatches are required to provide permanent and secure access to the roof area. In order to make sure you’re choosing the correct system to meet your project’s unique requirements, you must first identify the main reason for requiring access to the roof.

Is it purely for maintenance reasons? Or will a safe means of access also be required for the regular installation or removal of equipment from the roof? Here you should also identify what tools and equipment will need to be transferred through the access hatch, or whether it will just be the individual themselves that is conducting the necessary work.

2) Frequency and product specification - Once you have established your reason for requiring safe access to the roof, you will then be able to make an informed choice regarding which roof access hatch and corresponding ladder system is best suited to meet the needs of your project.

It is important to specify the correct Roof Access Hatch and Ladder combination to ensure that access from the ladder, through the roof access hatch, is as safe as possible. For example, a small roof access hatch should be accessed via a fixed vertical ladder, which is also the most suitable option for projects where space is limited.

Alternatively, if you use a companionway ladder or a retractable ladder, the roof access hatch length must be extended to around 1500 mm to provide for easy and safe access.

However, here it should be noted that a minimum head clearance of 120mm is required and that the maximum single climb is no more than three metres, in accordance with BS4211- 7.2. Regardless of the size of the roof access hatch, the system should be operated easily and safely with one hand, in accordance with the requirements outlined within the Manual Handling Regulations, enabling the individual to maintain three points of contact with the fixed ladder.

During the installation process, the ladder must be positioned opposite the hinge to ensure safe and unobstructed access. If access to the roof is required on a regular basis for professionals that will have to transfer tools and equipment through the hatch, a Fixed Staircase Roof Access Hatch, also known as a Service Stair Roof Access Hatch, should be specified with a Companionway Ladder or a Fixed Staircase.

It should here be noted that the roof hatch must be sufficient to maintain a head clearance of 2000mm, as detailed in Building Regulations Part K.

3) Bespoke requirements - To ensure all the criteria are successfully met, you should also consider whether a custom made roof access hatch should be chosen to ensure each of these areas is adequately fulfilled.

This includes options such as Bilco UK’s SKY Flatglass, which functions as both a Roof Access Hatch or a Smoke Ventilator, and is supplied with a clear, translucent lid to enable natural daylight into specific areas of the building, without impeding the functionality and accessibility of the hatch. Increased access opening sizes or double leaf configurations should also be explored where access is required for larger items of equipment or tools. Motorised options also allow the individual to safely maintain contact with the ladder when entering or exiting the hatch. All installations should be subject to individual Risk Assessments.

Comprehensive training should also be provided for all professionals, supported by Method Statements regarding safe and correct use of the access solutions installed. For further information on Bilco UK’s roof access solutions, visit www.bilcouk.co.uk or call 01284 701696.

For advice on how to specify the correct ladder, visit: https://www. bilcouk.co.uk/news/specifying-ladders For further information on specifying the right roof access hatch for your upcoming project, download Bilco UK’s free guide: https://www.bilcouk.co.uk/ files/downloads/choosing-the-rightaccess-hatch-bilco.pdf

POWERING UP MORE SUSTAINABLE, HEALTHIER OUTDOOR PUBLIC SPACES

Many of the UK’s town and city centres are being redefined to ensure they fit more closely with today’s urban lifestyles and the expectations of tourists. The changing retail landscape, driven by the growth of online shopping, more people working from home and an increasing number of people choosing to live in city centres, means that previous models for the design of streetscapes, public parks, plazas and other pedestrianised spaces are needing to undergo significant change. But it is not just reaction to social change that is at the heart of redesigns – sustainability and a growing movement to capitalise on the health benefits of being outdoors, in whatever form that takes, are also part of this fresh thinking to redesign our public spaces.

There is extensive evidence to show that providing safe, secure and attractive outdoor spaces is important to help people be more active and maintain and extend social interaction to benefit their mental health. Flood prevention and ensuring that water is managed efficiently in urban areas is becoming increasingly important due to climate change. Hence, SuDS (sustainable urban drainage systems) are being integrated and there is an increased use of planters in spaces that were previously dominated by tarmac, pavers and concrete, encouraging biodiversity in the process.

But there is also another important consideration in making these new outdoor public spaces as popular and versatile as possible to maximise their potential – access to on-demand power sockets.

Events can play a big role in increasing the use of outdoor spaces and attracting local people as well as tourists. Food and drink fairs, children’s fun days, market stalls, music gigs and light shows – events such as these can be a major draw and help strengthen local communities and they are easier to stage (even at relatively short notice) when easy access to power sockets is provided.

This is why a power infrastructure is a must for any redevelopment scheme or new development, and Pop Up Power Supplies® can help through a range of pop-up, in-ground and bollard power units. By incorporating a power access where there is an opportunity for events at all times of the year, there is no need to hire generators, which can be expensive and may not fit with the local sustainability agenda. The pop up (retractable) and in-ground power distribution units are permanently submerged in the ground, discreetly installed with a lid that matches surrounding surfaces so they are barely noticeable when not it use.

When a power connection is needed, such as to provide electricity to a street food kiosk, the lid can be unlocked by an authorised user to allow power leads to connected. The pop up unit is raised up using a turning handle, whereas the in-ground unit stays below the surface, accessed via a flip lid. As soon as vendors finish serving, or when events are over, the power leads can be simply disconnected and the power unit can be securely locked again to prevent unauthorised access and vandalism.

The third option from Pop Up Power Supplies® is the power bollard. This elegantly designed bollard will integrate with other street furniture as part of an attractive streetscape, whilst providing the benefit of access to electricity when required through its sockets behind a locked cover. www.popuppower.co.uk

TERRAZZO COMPAC- IT’S REAL STONE BUT NOT AS WE KNOW IT

Terrazzo COMPAC is a revolutionary high-performance stone recently developed by renowned surfaces company COMPAC and launched at the 2022 KBIS exhibition in Orlando USA. COMPAC’s R&D team have re-engineered traditional terrazzo to produce a material that can be used for all types of indoor or outdoor applications including: kitchen and bathroom worktops , walls, vanity tops, building façades, staircases, and high footfall surfaces such as hotels, airports, rail stations, shopping malls, and public buildings.

Terrazzo COMPAC has a wonderful consistent uniform appearance and its porosity is practically zero therefore absorption of water and other liquids is minimal - achieving a hygienic product that is both easy to clean and maintain. COMPAC offer four collections, Micra, Classic, Paladiana and Petra, each one featuring beautiful designs and finishes to suit virtually any application.

Terrazzo COMPAC complements the company’s quartz and obsidiana product ranges and offers architects and designers a superb portfolio of products to stretch their imagination and help create innovative design solutions.

COMPAC’s pioneering spirit is not only reflected in the stunning surfaces they produce but also in the development of environmental technologies which allows the company to manufacture all their products in a sustainable way, with 100% renewable electric energy and reusing more than 98% of the water in the production process. www.compac.es

CRITTALL WINDOWS – I’LL DRINK TO THAT!

ACornish brewery has moved into renovated premises that give visitors a whole new experience of watching the creation of their favourite beers with Crittall Windows playing a crucial role in the new concept.