KALZIP – „The Lighthouse“ in Aarhus

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“The Lighthouse” in Aarhus, Denmark’s tallest residential building with an unusual roof shape.

The artificially created district near the centre of the Danish port city Aarhus offers spacious new living space. The latest construction project, “The Lighthouse,” contributes significantly to this by adding 400 new apartments to the housing market. As the name promises, the building rises majestically like a lighthouse on the southeastern shore of the harbour area, and it is also Denmark’s tallest residential building.

Small roof, extensive planning effort, and an additional floor.

The building captivates with its unique architecture, especially the organic and geometric shapes of the roof, facades, and balconies. Particularly striking is the parallelogram footprint of the building, rounded on two opposite sides. The realization of this design was a challenge that Robert Thiebes of Kalzip mastered with confidence, using specialized software and on-site data collection. Particularly innovative are the diagonal standing seam profiles of the roof terrace, which allow for efficient rainwater drainage while also serving as a stylistic highlight. During the structural calculations, it was discovered that an additional floor was possible, perfectly suited for creating a sophisticated gastronomy and viewpoint for visitors at 142 meters above ground.

Installing accurate to the centimetre

During the processing on the construction site, the team of the executing company AE Stålmontage a/s started at the highest point of the roof and initially moved on one half of the roof towards the roof terrace. The assembly proceeded as usual: The profiled panels were placed on top of each other at the seam and flanged with a flanging machine.

The installation of the complex, three-dimensionally curved Kalzip XT sheets with a corresponding angle of inclination proved to be particularly tricky. Despite the flexible substructure, which offered a little room for manoeuvre during installation, as well as the clearly laid out construction plans, construction was briefly halted, as Robert Thiebes reports: “In this project, there was only a few centimetres of displacement space between the profiled sheets, which decided whether the next sheet would fit in or wedge in. In order to find the best possible solution to this problem, we travelled to the construction site, were able to quickly locate the error and instructed the employees accordingly.”

Roll-formed and twisted

Innovative techniques were necessary to implement the curved transition from the roof to the facade. Each individual standing seam profile of the building was numbered and prefabricated in advance, then specifically bent and twisted according to its designated location. As always, this required precise millimetre work, leaving no room for errors. The installation of the complex, 3D curved KALZIP XT panels with a certain angle of inclination posed the biggest challenge, as there was only a few centimetres of leeway for installation.

 

A wind-resistant challenge

The “Lighthouse” presented special challenges during planning and construction, especially due to limited storage space because of the surrounding buildings and proximity to the water. Consequently, all materials were stored in the neighbouring port docks. Transporting the standing seam profiles from Koblenz to Aarhus was a logistical masterpiece. To protect the different angles of inclination of the profile panels, they had to be stacked on pallets with special spacers. A crane transported these pallets to the roof. Due to the height and resulting wind suction, the unused standing seam profiles had to be secured with tension straps.

The finishing touch

With the completion of the roof, the exterior shell of the impressive “Lighthouse” building was finalized. The 480m² XT profiles from Kalzip, not visible to visitors, incorporate a sophisticated recess for a maintenance crane. “Despite the relatively small area, the ‘Lighthouse’ roof stands out for its unique and demanding shape, making it a complex and time-consuming challenge,” says Robert Thiebes.

 

Considered with care. KALZIP.

Contact

Kalzip GmbH
Yannick de Beauregard
Kalzip Marketing
August-Horch-Str. 20 – 22
56070 Koblenz

Phone: +49 261 9834 0
Fax: +49 261 9834 100

E-Mail: yannick.de-beauregard@kalzip.com

KALZIP – „ROYAL NEIGHBOURHOOD.“

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AWARD-WINNING ARCHITECTURAL STUDIO IN A ROYAL NEIGHBOURHOOD.

Close to Balmoral Castle, in the Scottish Highlands, the now multi-award-winning office building and community café by Moxon Architects fits harmoniously into what is now woodland. Decades of use of this environment as a quarry have left an impressive and unique landscape structure at the site, which inspired the Aberdeenshire architectural team to create its distinctive lines. The aim was to create a harmonious unity with the surroundings through design and materials.

A design shows Kantefen.

A special aspect of the design was the low roof line, which could be implemented with Kalzip aluminium roofing – also in terms of material a perfect combination with the otherwise used wood from the region. Stylish and discreet, the roof design is a key aesthetic element, particularly due to its vertical use in this building to dramatically highlight key wall areas, including the café entrance. The roof line, runs parallel to the edge of the slope above and overall takes on an important role in the visual perception.

 

Form follows Function

But it was not only aesthetics that played a decisive role in the choice of a Kalzip aluminium roofing system, but also the issues of sustainability and, last but not least, the demanding climate of the region. Visually, they wanted to reflect the rural tradition, but in a sophisticated, modern way. Kalzip’s standing seam aluminium roof was the first choice here, as aluminium offers a denser finish than the steel or zinc usually used regionally – and it allows a flush appearance to be created with sharper edges. In terms of colour, the choice fell on a HighPerformanceCoating-System (HPC) in RAL 9011 with a 3% gloss level, as a modern homage to the local slate. The choice of colour was also the result of close collaboration with Kalzip.

 

Harmony with the surroundings

Every aspect was carefully thought through. Aberdeen-based roofing specialist Fowler McKenzie assisted the design team with the technical details to ensure the specification met all the aesthetic details but also the performance requirements of the building. Given Royal Deeside’s potentially harsh winter climate, a Kalzip® snow guard system was fitted, colour co-ordinated of course, to minimise visibility. Rain, on the other hand, is directed from the roof directly into a new marsh and wetland area and is an example of sustainable integration of building and landscape conservation.

Quarry Studios is the winner of the following awards:

  • RIAS Andrew Doolan Award for Best Building in Scotland 2022.
  • Winner of the RIBA National Award 2022
  • Winner of the RIAS Award 2022
  • Winner of the Civic Trust Award 2022
  • Project of the Year ASA Awards 2022
  • Winner of the American Institute of Architects UK Award 2021
  • Winner of the Architects’ Journal Award 2021
  • Winner Scottish Design Award 2021
  • Finalist BCIA Commercial Project of the Year 2021

 

 

Considered with care. KALZIP.

Contact

Kalzip GmbH
Yannick de Beauregard
Kalzip Marketing
August-Horch-Str. 20 – 22
56070 Koblenz

Phone: +49 261 9834 0
Fax: +49 261 9834 100

E-Mail: yannick.de-beauregard@kalzip.com

KALZIP – „University with Added Value.“

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Located in the beautiful French coastal town of Dunkirk, one of the four campuses of the Université du Littoral Côte d’Opale (ULCO) specializes in marine research. Due to the aging roof of the main building, a comprehensive renovation process was carried out. The construction work spanned approximately a year, with university operations continuing without disruption during this time.

Particularly to ensure a uniform appearance in combination with the still intact roof surface and not to compromise stability due to the additional weight, the use of aluminium roofing was a firmly defined part of the public contract. The weather-resistant, easy-to-install, and above all, flexible warm roof construction by Kalzip with its innovative standing seam profiles was again able to fully convince in this tender, as the comprehensive complete system includes everything from the fastening material, insulation layer, to the roofing skin, necessary for a swift and targeted renovation.

Thoughtfully Roofed.

At the beginning of the work, the old roof was removed, and the underlying, still intact steel roof truss was used as a substructure to install the new vapor barrier and the mineral thermal insulation. Then, the original roof was repaired over almost 5000m2 with aluminium profile sheets, naturally considering openings for skylights and the integration of a connection for a solar system.

The aluminium profile panels of width 65/305 were fixed using composite clips and then safely folded. This guarantees a penetration-free roofing skin. These innovative composite clips (E-Clips) are designed to provide enough space for the mineral insulation layer with an appropriate build-up height. A compressible thermal insulation fleece, which can be separately removed again during dismantling, provides sustainable insulation. To facilitate potential maintenance work, walkways were installed after completion, and the extensively tested Kalzip roof path system SafetyPlus ensured optimal work safety at lofty heights.

 

A Wave of Everything: Tradition, Combined with Modern Architecture and Sustainability.

A roof form was deliberately chosen that slopes down to street level on the east side, rises again on the west side, and then breaks like a wave over the main entrance of the university. The resulting homogeneous roof structure reflects daylight, mimics the movements of the water, and from a bird’s eye view, ideally adapits to the given floor plans of the harbor quay and the surrounding streets and buildings.

As with almost all Kalzip projects, the new roof design of the main university building now impresses with the combination of traditional and modern elements and convinces with the use of an aluminium recycling alloy, even in rough coastal climates, with extreme durability and long-term ecological sustainability.

 

Considered with care. KALZIP.

Contact

Kalzip GmbH
Yannick de Beauregard
Kalzip Marketing
August-Horch-Str. 20 – 22
56070 Koblenz

Phone: +49 261 9834 0
Fax: +49 261 9834 100

E-Mail: yannick.de-beauregard@kalzip.com

KALZIP – „Primary school in Wriedel, second representation“

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A new cafeteria for the Swallow Elementary School in Wriedel

In order to meet the requirements for mandatory all-day care, the Swallow Elementary School in Wriedel, near Hamburg, has received a new cafeteria for lunchtime meals. The modern, one-story building is covered with an aluminum gable roof and has an integrated solar system that provides the school with sustainably generated electricity. Interested visitors, teachers, and students can use a monitor to learn about the system’s performance.

The cafeteria plays a central role in the open all-day school operation, not only because students need to be fed, but also because it is intended as a space for community building, says school principal Sabine Liebmann. “The cafeteria is not only used for eating, but also as a meeting room. It replaces the auditorium that we didn’t have,” says Liebmann.

Bright and educational

Skylights were installed on the roof as a natural source of light so that daylight can enter the room at any time. The over 300 square meter roof area is covered with photovoltaic modules, which fill most of the aluminum profile panels to maximize the potential of the overall area.

The aluminum standing seam roof with photovoltaic system was constructed using the tried and tested AluPlusSolar system from Kalzip and consists of individually prefabricated aluminum profile panels. The very flat solar panels are already glued to the profiles in the factory to avoid any impact on the connection due to dust, dirt or moisture and to facilitate installation for skilled tradesmen. The Kalzip 50/444 profile used for the interconnection is known for its weather resistance and durability.

 

Efficient, robust and sustainable despite minimal weight

The skilled tradesmen first installed the system-specific composite clips on the slightly sloping roof area, which was provided with a vapor barrier. This was followed by a mineral thermal insulation layer to efficiently and sustainably insulate the building. Since the module connections are located behind the panels, each panel had to be placed individually on the standing seam of the previous panel.

The aluminum standing seam roof with photovoltaic utilization impresses with its lightweight design and high energy efficiency, as it weighs significantly less than other roofing systems and has therefore already proven to be the system of choice in many previous construction projects. Overall, around 100 students now attend the new cafeteria and enjoy events in their new auditorium.

 

Considered with care. KALZIP.

Contact

Kalzip GmbH
Yannick de Beauregard
Kalzip Marketing
August-Horch-Str. 20 – 22
56070 Koblenz

Phone: +49 261 9834 0
Fax: +49 261 9834 100

E-Mail: yannick.de-beauregard@kalzip.com

KALZIP – „Wintringham Primary Academy, Saint Neots“

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A COMBINATION OF HIGH PERFORMANCE AND DISTINCTIVE ARCHITECTURE – THE AVOCADO SCHOOL BUILDING EXCELS

The township of Wintringham received a new flagship building in the form of Wintringham Primary Academy in St Neots, Cambridgeshire, completed in 2021. Cambridgeshire County Council commissioned the building affectionately known as the ‘Avocado’ due to its unique roof shape. The project is a clear demonstration of the excellence of workmanship that Kalzip provide to clients through the installation of the Kalzip standing seam roof system and the quality of the bespoke curved aluminium soffit and aluminium fabrications.


Philip Marsh, Founding Director at dRMM (de Rijke Marsh Morgan Architects), who was responsible for the school’s design, said: “Wintringham Primary Academy’s distinctive shape was formed by Passivhaus principles. By arranging teaching spaces around a central grove, the aim was to increase daylighting and cross ventilation from multiple aspects. The shape allows a spatial arrangement which supports the idea of a school ‘in the round’.

“The client required a roof system that was robust and low maintenance, and one that would stand the test of time. A Kalzip standing seam profile roof was selected after considering a few options, ultimately the Kalzip system provided the best option in terms of durability. Additionally, the Kalzip roof also offered compatible bolt-on solutions for roof maintenance systems that were easy to integrate. The project required a fall restraint mansafe system and roof access stair which could be simply incorporated as part of the roof system. From the moment we started liaising with Kalzip for their technical input they were most helpful and were able to answer all our technical queries in great detail.

“Kalzip 50/429, stucco embossed aluminium was specified for the project, which was site rolled at the eaves with the longest sheet measuring 72 metres. Additionally, intricate detail work was required on the curved aluminium fabrications, along with the drainage requirements on the complex roof shape. Having received high-level technical information at the early stages of enquiry, we were confident Kalzip’s experience would be beneficial. We also specified 280mm Kalzip insulation plus 40, compressed to 255mm within a cavity created by E180 clips, S5 & S10 spacer pads, galvanized steel top hat supports fastened down to a Glulam Beam timber structure to achieve the thermal requirements.”

There were some logistical challenges for this bespoke project, mostly surrounding the tight budget and construction programme. Just 12 months were allowed for the construction with completion to coincide with the start of the new school year. Kalzip’s systems are predominantly manufactured offsite, which led to a quick and simple installation onsite, despite the complex nature of the roof.

Wintringham Primary Academy is a prototype typology for an all-timber school that delivers an inspirational learning environment, which surrounds itself with greenery inside and out. To enhance wellbeing, dRMM prioritised a timber aesthetic, natural light, ventilation and direct access to the surrounding landscape in response to the school’s affinity with forest school principles.

As part of a team headed by contractor Morgan Sindall, dRMM worked with Cambridgeshire County Council (CCC) and the Diamond Learning Partnership Trust (DLPT) to develop the vision. This called for a three-form entry primary school for up to 708 children, including a nursery that could be run independently if required. The 3615m2 school was completed in 2021 after a construction programme of just 14 months despite the restrictions of the pandemic.

There were a number of challenges to overcome, and Kalzip’s vast experience was certainly required at numerous points. As a result, Kalzip was awarded Morgan Sindall’s ‘Perfect Delivery” award for the Wintringham Primary Academy project. Wintringham also achieved the RIBA East Regional Award and the RIBA East Sustainability Award in 2022 and was highly commended in the Structural Timber Awards.


For more information please visit: www.kalzip.com/en/

Considered with care. KALZIP.

Contact

Kalzip GmbH
Yannick de Beauregard
Kalzip Marketing
August Horch St. 20 – 22
56070 Koblenz

Phone: +49 261 9834 0
Fax: +49 261 9834 100

E-mail: yannick.de-beauregard@kalzip.com

KALZIP – „Hangar for airship Theo in Mülheim an der Ruhr“

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A Hangar for Theo

Retirement is the gold standard for “Theo” the airship.

The airship “Theo” is considered the unofficial mascot of the Ruhr area, as this airship circled above the Ruhr metropolises for almost 50 years. In 2024, the moving landmark will retire. To ensure that “Theo” feels comfortable on the ground in the future, its old hangar has been enlarged, renovated, modernized, and raised to the latest ecological standard. The new, climate-neutral multifunctional hangar can now be used as a venue for 1500 people, surpasses all structural and static requirements with minimal maintenance effort, and is incomparably durable.

Indeed, it sounds like a Kalzip project. The fact that Kalzip was able to meet this unusual challenge was made possible by an expert committee of the International Association for Metal Construction, which recommended that only a building envelope made of 95% recycled aluminium standing seam profiles could meet the extensive climate neutrality requirements of the building concept. This called for a climate-neutral building that meets the Gold Standard requirements of the Society for Sustainable Building. But those who know Kalzip know that it is precisely this type of challenge that drives the company.

 

A 6,500 m2 custom-made structure made of 557,000 kilos of wood and 1,500 wood components.

Since the supporting structure of the new hangar consisted exclusively of wood, no cornerstone was laid in 2022, but a “foundation wood-laying.” The term fits well because a total of 557t of wood from domestic forests was used as a sustainable and renewable building material for the supporting structure. The special feature of this spectacular supporting structure is that a total of 592 nodes were joined together in the main load-bearing areas without a single piece of steel in a truss span of 42m. This required not only tremendous physical effort and extensive construction practical experience from a well-rehearsed team of specialists but also countless work steps at 6500 m2.

A total of around 1500 wood components were manufactured and assembled with millimetre precision. A prerequisite for the professional and efficient installation of the profile sheets at lofty heights was not only the demanding three-dimensional planning and produced the tapered profiled and curved aluminium profiles in advance, but also the precise installation of all fastening elements, both in the elongated, simply curved area and at the quarter-sphere, three-dimensionally shaped hall endings. Due to the dome-shaped form of the new hangar, it was not possible to erect scaffolding, so the aluminium sheets had to be mounted at lofty heights using mobile work platforms. This required individual protective clothing, a safety harness, and a safety net for fall protection.

One system, many solutions.

The complex ecological requirements and the special building geometry require a flexible system that can cope with all challenges and adapt to them. The substructure system FlexiCon RR80 from Kalzip exceeds these requirements. In combination with the installed aluminium standing seam profile, it compensates for existing height differences in the load-bearing surface and also guarantees efficient installation because the installation of the aluminium profile sheets and their insulation is carried out in one work step. To ensure a distortion-free, temperature-related expansion movement of the profile sheets, the clip of the standing seam profile was aligned three-dimensionally during installation on the saddle.

The system developed by Kalzip is also used in dome roofs, flue towers, or other three-dimensional buildings. The FlexiCon system allows the aluminium sheets to be mounted horizontally and vertically with uniform rounding. An important visual feature of the airship hangar. Another advantage of the composite clip system used is that no thermal bridges occur, which would impair the energy efficiency of the building.

 

From beginning to end, a green thread

Theo is proud of the eco-friendliness of his new multifunctional hangar. At the beginning of the construction work, 8000m3 of excavation material was crushed on site and reused as the foundation for the project. The targeted use of resource-saving materials and the reuse of building materials saved a total of over 156t of CO2. The two 400m2 large and 72t (without aluminium cover) heavy door wings are powered by four 80PS electric motors. The aluminium cover can easily be dismantled and added to the recycling cycle after the end of its useful life or it can be reused and repurposed in suitable areas of the building.

Through this future-oriented construction method, it is sustainably ensured that Theo and his visitors of all generations will enjoy his new hangar for many years to come.

Considered with care. KALZIP.

 

Contact

Kalzip GmbH
Yannick de Beauregard
Kalzip Marketing
August Horch St. 20 – 22
56070 Koblenz

Phone: +49 261 9834 0
Fax: +49 261 9834 100

E-mail: yannick.de-beauregard@kalzip.com

KALZIP – „Denmark Hill Station“

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Europe’s first carbon-free train station

KALZIP® HELPS DELIVER FIRST CARBON POSITIVE STATION UPGRADE

The construction of a new entrance, cycle hub and platform canopies at a popular south London train station is being hailed as the network’s first ‘Carbon Positive’ project, with arrays of integrated AluPlusSolar PV panels being installed as part of a roofing package featuring products from the Kalzip® range. The new facilities at Denmark Hill Station are now operational and the project has since been recognised as Best Roof under 1500m2 at the annual Kalzip® Awards.

A crucial redevelopment

The £7.5 million Denmark Hill project has been led by BAM Nuttall Ltd with Invvu Construction Consulting being responsible for the design and project management on behalf of Network Rail. London based roofing contractor, Gribben Solar Roofing was the specialist installer of the AluPlusSolar roofs which total 260m2 across three platform canopies, the station building and an access ramp: generating an output of 35 kWp.

 

Work began on site in September 2020 with the construction of a retaining wall alongside Platform 4, ready for the installation of the new canopies on Platforms 2, 3 and 4 during a Christmas possession – requiring Gribben Solar Roofing and its suppliers to complete this phase of the work in a very tight time period. All of the materials were delivered to site a week in advance of the Christmas deadline. Crucially, the redevelopment of the station facilities, and its transformation in terms of energy performance has had to fully respect the heritage status of the original Victorian structures.

Versatility and speed

The design work was carried out in close consultation with the local planning authorities and the listed building authorities. The architects had specified Kalzip® on a number of projects before and noted that the Kalzip® AluPlusSolar system stands out as the most favoured system, because it’s so lightweight, versatile in terms of output and so quick to install.

 

Low maintenance and whole life cost

The Kalzip® AluPlusSolar profile can be produced in the full range of RAL colours as well as a variety of forms, including concave and convex to suit a wide variety of roof structures. Also being integrated and low in weight, they therefore offer architects and engineers greater flexibility compared to conventional PV arrays while delivering similar power output. With very low future maintenance implications, this all results in a far lower whole-life cost for a development.

 

About Kalzip

Kalzip sells and produces aluminium roof and facade profiles for the areas of industrial construction, leisure facilities/sports facilities, transport and housing. The Kalzip Group employs 160 people worldwide and is represented in almost all regions of the world. Since October 2018, Kalzip has been a company of the Donges Group.

You inspire we deliver. KALZIP.

 

Contact

Kalzip GmbH
Yannick de Beauregard
Kalzip Marketing
August-Horch-Str. 20 – 22
56070 Koblenz

Phone: +49 261 9834 0
Fax: +49 261 9834 100

E-Mail: yannick.de-beauregard@kalzip.com

ACOUSTIC PERFORMANCE IN SCHOOLS

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In contrast to many other sectors, there is detailed acoustic performance guidance for educational buildings. Here Adrian Whitefoot, Technical Services Manager at Kalzip, looks at the requirements of Building Bulletin 93 and how the correct specification of building envelope solutions can help achieve these.

Ensuring good acoustics and minimising levels of noise in school environments is essential. A growing body of evidence has shown the impact of noise on academic performance and cognitive development. For example, a recent study from the Barcelona Institute for Global Health found that higher levels of traffic noise caused slower development in memory and attention among children aged 7 to 10.


A quiet place for children gives the best surrounding for an ideal learning environment. (© KGM Roofing)

The main source of legislation for acoustics is Approved Document E of the Building Regulations, and in particular section E4, which specifically relates to acoustics in schools. For guidance on achieving the required acoustic conditions, Approved Document E refers to Building Bulletin 93 (BB93), the guide for acoustic design published by the Department for Education. While section E4 of the Building Regulations does not apply to colleges and universities, the acoustic recommendations provided in BB93 may also be desirable in these environments and therefore can provide a design standard.

Building Bulletin 93 sets limits for the level of ambient noise in rooms and spaces within a school based on how it is used. For example, the limit in classrooms and general teaching areas in primary and secondary schools, including those used for music and drama, is 35dB LAeq,30mins for new buildings and 40dB LAeq,30mins for refurbished buildings. Higher limits are set for sports halls, dance studios and swimming pools, while lower limits are given for teaching spaces for students with special hearing and communication needs.

Noise pollution can come from a wide range of sources, especially in school environments. External sources include aircraft, traffic, rain impact, noise from playgrounds and outdoor sports, and sound transmitted from nearby school buildings. Internally, impact and airborne sound from students and teaching activities can be transferred between floors and through walls.

Noise reduction can be easily achieved with the use of the Kalzip Accoustic roof.

There are a number of measures that can be implemented in the specification of building envelope systems to improve the acoustic performance of both new build and refurbishment projects. Different insulation materials will have varying acoustic properties but one of the most effective methods for increasing sound insulation of roofing and facades is to increase the mass of the system. Its performance is governed by the ‘mass law’, which states that the sound insulation of a solid element will increase by approximately 5 dB per doubling of mass. With metal roofing systems this can be achieved by adding different densities and thicknesses of mineral wool or rigid slab insulation. Alternatively, for higher performance scenarios, various thicknesses of cementitious board can be introduced as part of the façade or roof build up. As a built-up solution, aluminium roofing and façade systems offer this flexibility to tailor the specification to meet the acoustic requirements.

In addition, acoustic and dampening membranes can also be used to increase sound insulation. For example, to reduce the sound of rain noise, an anti-drumming membrane can be bonded to the underside of an aluminium roofing system to achieve approximately a 6 dB reduction in sound intensity.

Controlling sound within teaching spaces must also be considered carefully when designing educational facilities. Excessive sound reverberation within a classroom can distort speech and make teaching and communication difficult. Building Bulletin 93 provides guidance on acceptable reverberation times (RT) depending on the intended use of the space. For example, for a new build nursery room or general purpose primary school classroom it is ≤ 0.6 seconds. In contrast, the same type of teaching space in a secondary school would only need to achieve a RT of ≤ 0.8 seconds. The correct specification of roofing and façade systems can help to minimise excessive reverberation as well. Perforated liners and structural decks can be introduced as part of the roof build-up to diffuse sound where improved sound absorption performance is required.

The Kalzip Accoustic roof is based on the proven Kalzip technology with the same flexibility.

Achieving the optimum specification to ensure acoustic targets are met alongside all other building performance and design requirements can be complex. That is why it is important to partner with a roofing and façade system manufacturer that can offer a wide array of solutions as well as technical support services. Leading manufacturers, such as Kalzip, will be able to use laboratory test reports and data from previous projects to provide specification guidance and assess the performance of a proposed system.

Ensuring the acoustic performance of school buildings is essential to provide an environment that supports learning and development. Building Bulletin 93 provides detailed guidelines, which the correct specification of building envelope materials and systems can help achieve.