"floor and roof screeds aggregates"

The new Leeds Arena was a £60m project by Leeds Council to create a striking new stadium, which has been crowned with a 7,500sq m Sika Sarnafil single ply roofing system, installed by experienced contractor Lakesmere. The fact that Sika Sarnafil was the first roofing manufacturer to be BIM ready played a huge part in the specification, and in turn improved the ability to review designs and rationalise ideas, whilst cost saving using BIM was highlighted through material specifications and design coordination.

Suffering substantial earthquake damage earlier in 2014, the roof of a residential property in Christchurch, New Zealand has been given a new lease of life following the installation of 13,500 of SSQ’s Del Carmen, Ultra grade, slates. Following investigations, the previous slate installation had proved too brittle – following the damage to the roof, the Earthquake Commission approved the removal and re-usage of the slate, however it was discovered that only 20% of the original slates were suitable to use again.

This dwelling is located in a unique natural environment in the French Pyrenees (Gaillagos, France). When designing this family home, the main focus of the owners was to reduce their energy consumption without giving up to an elegant slate roof. That is why they decided to get THERMOSLATE installed: it is a completely invisible solar roof that gets repaid from day one. Only 4 collectors installed on a total surface of 5m2 were enough to cover more than 60% of their hot water needs (250 liters per day).

The conversion of a traditional barn within the conservation area surrounding Wells Cathedral, Somerset has benefitted from the installation of THERMOSLATE roof solar collectors. The new solar system will generate 57% of the occupants’ hot water requirements. Paul Kellet, the architect, said: “My client was keen to use a natural material for the roof of the property, whilst also making a sustainable contribution to meeting the family’s energy needs. The specification of THERMOSLATE and complementary CUPA R12 spanish slate allowed Paul to meet these requirements.

Education specialists Cottrell & Vermeulen Architecture specified Eternit profiled sheeting on the roof and facade to bring both aesthetics and practicality to the striking redevelopment of a nursery school in East London, Kintore Way Children’s Centre.The multi-coloured roof of the new, snaking extension, which focuses on green and blues to reflect the canopy of trees in a central courtyard and the nearby river, probably most reflects Cottrell & Vermeulen’s distinctive style which is typically promoted in the use of colour, shapes and components in their raw state.

The client wanted the roof of this new building to not only be of the highest quality but also designed to be aesthetically pleasing and echo the ethos of the school based upon respecting your environment. Insulation needed to be incorporated into the roof build-up in order to satisfy building regulations and work hours had to be agreed to keep disruption to a minimum. The work also had to be completed to strict deadlines to ensure that the school would be open in time for the start of its inaugural term at its new location in Hazeley

Robert Bloomfield Academy is a middle school situated in Shefford, Bedfordshire that has approximately 800 pupils aged from 9 to 13 years old. Having recently had a Bauder roof installed, the school was keen to add a photovoltaic (PV) system to the building to meet their high sustainability aspirations. As a result of discussions with Bauder and funding specialist Evogreen, the school identified this as a perfect opportunity to have a no capital outlay PV solution fitted that would not compromise the existing 20 year roof guarantee.

This historic property is being converted into luxury apartments and in the grounds of the palace some twenty six new houses are being constructed to be architecturally in keeping with the historic main building. Taking cues from the complex roof layout of the original palace, the new houses have numerous hips, valleys, box gutters, monoridges and even turrets. The increased levels of thermal insulation required within the roof space meant that the risk of condensation occurring out of sight in the loft voids increased dramatically.

Roof slates by Welsh Slate feature on the renovated Cleveland Pools.The UK’s oldest public open-air swimming baths, once used as a trout farm, are enjoying a new lease of life, thanks in part to Welsh Slate.Some 75m2 of Welsh Slate’s new Penrhyn Heather Blue roofing slates feature alongside salvaged originals on the main building and changing rooms of the lido at Cleveland Pools, a Grade II* listed building that had been on the Buildings at Risk register.

Barton Hill Primary School was converted into an academy. As part of these works the structure of the school required renovating and expanded to meet the standards expected. Areas using Polyroof’s systems included new extension roofs, refurbishment of existing roofs, and the creation of colourful dormer pods.The requirements of this project were as varied as they were demanding. With it being a school the works had to be carried out as rapidly as possible and with as minimum disruption. For safety reasons cold-applied systems were preferred to traditional hot-applied solutions.polyroof.co.uk

This blockwork construction with sips panel warm roof connections and fabric made completely airtight using Passive Purple. This Passive build with sips panel roof in the heart of Cambridge was a great job from start to finish, with Passive purple brush sealing all the connections of various substrates such as steelwork, blockwork and timber and then given a final send of with a spray application of Passive Purple, with intricate detail, multi-level rooms and grand design in general, achieving under 0.6ach was no problem.

Within an educational environment, natural light creates a comfortable space which can have a positive impact on the health and wellbeing of students and staff. When the existing bitumen roof at East Preston Infant School came to the end of its service life, naturally the decision was made to replace the existing roof and upgrade the rooflights. Kingspan Light + Air introduced 23 Kingspan Classic Skylight Domes into the building enabling the school to embrace natural light, ventilation and smoke management performance benefits.

The overall aesthetic appearance of this project was very important. Originally, traditional metal roofing was considered, but the client had reservations with possible noise issues and theft problems, and local planning constraints did not permit the use of traditional slate. So, Williams Roofing Contractors of Chandlers Ford were tasked in finding an alternative solution.Polyroof’s BBA approved 185 GRP System can replicate the look of metal sheeted roofing at a fraction of the weight and the price and, having no scrap value, is not prone to vandalism or theft.The contractor worked closely with the Polyroof Technical Department, the client, and the planners to produce a detailed specification for the project incorporating pre-formed trims to create a lead effect. The system was successfully installed within the project time frame and upon completion was given the usual insurance-backed 20 year guarantee from Polyroof Products Limited.Polyroof’s simulated metal finishes are achieved through the installation of Polyroof pre-formed GRP trims which are fixed to the deck or substrate prior to the application of the Polyroof waterproofing membrane. The project was nominated for the LRWA Roofing Awards due to the high level of intricate detailing that was undertaken and the care that was taken to ensure that all preformed profiles were fitted in balanced, parallel positions. The overall attention to detail by the Polyroof approved skilled operatives was first class.

Weston Homes have developed 182 luxury apartments across four blocks, overlooking the River Lea navigation canal. Situated on a former industrial estate, the apartments are designed with functionality, style and comfort in mind. The beautifully landscaped grounds include gardens, a central courtyard, a wildflower meadow and river walkways. The development also includes underground parking and balcony space for residents to enjoy the river views. The impressive curved roof was installed across three buildings. This included vertical installation of a Kalzip standing seam secret fix system.SFS supplied fixings to the project, including stainless steel self-drilling SX fasteners with an irius® (L12) head. The irius® head is an ideal solution for when aesthetics are paramount, like on a luxury project such as this. A low profile head form, the irius® has been designed specifically for applications where the fastener has to fulfill all its normal structural requirements whilst, at the same time, blend in unobtrusively with the roof or cladding. It can be powder-coated for colour matching purposes and the innovative underhead drive system enables ease of installation, whilst also offering a high level of tamper-resistance.This project was nationally recognized, with the contractor winning the 'Roof Sheeting' category in the NFRC UK Roofing Awards 2016.

Eternit fibre cement profiled sheeting in colour Black was specified for the roof of St Bartholomew’s School, Swindon.

System - Genius PrimeMain Contractor - BAMInstaller - FCB BUILDING & ROOFINGArchitect - PARK/PAGE

Black KlasseCLAD™ was installed on the roof of this prestigious building and the result is truly in keeping with the high-quality surroundings.

A Victorian mill transformed into CAT-B office space with a retrofit featuring premium performance roof insulation.

Our tapered roofing insulation was installed on London's first cable car system spanning the River Thames

Keymer’s Traditional Elizabethan and Antique roof tiles are used to stunning effect on this beautifully restored period property.

For this beautiful self build in Lincolnshire, Wienerberger's New Rivius Antique Slate roof tiles were used.

The 16,500m2 new Faculty of Social Sciences building is designed to meet the future growth demands of the department up to the year 2035 and creates a world class, BREEAM outstanding building that encourages collaboration and enhances the Faculty’s reputation for excellence in teaching and research.The landscape design for the new University of Sheffield building set out to create a large area of public realm on the social sciences campus, with provision for sustainable drainage systems including extensive use of tree pits and rain gardens. As part of the SuDS design specifications, a Blue Roof stormwater drainage system was considered as an alternative option to underground attenuation tanks to keep surface water run-off within the discharge consent.ABG were able to demonstrate that specifying a shallow Blue Roof attenuation layer involved much lower carbon emissions than excavating underground storage tanks.The volume of vehicle movements required to install underground stormwater attenuation compared to the ABG blueroof system was calculated (delivered from ABG’s factory based 25 miles away), and a carbon footprint saving of 59% was estimated. The reduction in construction emissions was deemed particularly important given the site’s proximity to the Royal Hallamshire Hospital.The 108mm ABG blueroof system design was fitted over a 4,500m2 roof catchment area by the ABG Installs team over a period of 8 weeks. The inverted roof system build-up includes a 245mm XPS insulation installed onto the waterproofing with a Water Flow Reducing Layer (WFRL) above. The ABG Deckdrain 4mm geocomposite drainage layer is installed above a 100mm void former, wrapped in a Terrex NW20 geotextile layer to prevent debris entering the drainage voids. The roof build-up is completed with a surface finish combination of stone ballast and 63mm pavers.For the majority of the year, the roof drains into the rainwater outlets as normal, however during prolonged spells of heavy rainfall the void formers begin to temporarily attenuate the stormwater. During storm periods the rainfall outflow rate is slowed using 13 stainless steel restrictor chambers, positioned above each rainwater outlet.This controls the volume of water that is able to discharge from the roof during the storm, minimising surface water run-off and reducing the risk of flooding in the local area. The system is calculated to only reach maximum attenuation volume during a 1-in-100 year storm event, as calculated using the Flood Estimation Handbook rainfall data for Sheffield, plus 40% allowance for climatic change. The system features an integrated overflow outlet in the event a storm occurs that exceeds this designed capacity.

Overview The Theatre Royal, Drury Lane is located in the City of Westminster and is the oldest theatre in London still in use. There have been four different theatres built on the site, the first of which opened its doors in 1663. The current theatre was designed by Benjamin Dean Wyatt and opened in its current format in 1812. The theatre, now owned and operated by Andrew Lloyd Webber's company LW Theatres, has just gone through an astonishing £60 million refurbishment, designed by architects Haworth Tompkins, which includes new bars, dressing rooms and even a new 16 person lift to grant easy access to upper levels! Installation Over the past 2 years, C.A.T. has worked closely with the client, the architects and the flooring contractors - to supply a range of solid brass flooring profiles and stair nosings throughout this iconic building. Hand-finished here in the UK, these Brass Nosings adorn the staircases within the theatre's auditorium and many of the original cantilevered staircases in the foyers and Royal Boxes. Alongside Loughton Contracts, C.A.T conducted multiple site visits, to measure and template the hundreds of steps across the theatre. These measurements were conveyed to our fabrication team, who worked extremely hard to bring the nosing’s to life and replicate the detail of the treads, to ensure the overall finish was first class. Last but by no means least, as you walk into the newly refurbished theatre foyer, you will be greeted by the stunning bespoke carpet by Alarwool, expertly finished by Loughton Contracts, with our 16mm solid brass rods, hand-turned by our factory and hand finished in antique brass, to match the nosings and trims throughout. Be sure to look up too, the atrium roof is simply stunning!

Ascent Rooflight Covers were specified by Eurosafe Solutions as part of a Safe Access strategy to allow maintenance personnel to frequently access the roof areas to undertake Planned Preventative Maintenance (PPM) works at an office / warehousing premises in Orgreave, Sheffield. The Ascent Rooflight covers are a freestanding unit that sits above the potential fall hazard of the glazed rooflight. Formed from an angular aluminium framework with mesh infill the rooflight covers do not overly restrict light penetrating the rooflight. The Rooflight covers are supported on small spreader plates which provide a non-penetrative support solution on the flat felt roof. The Ascent Rooflight covers are testing in accordance with ACR(M) 001:2014 Test for Non-fragility of Large Element Roofing Assemblies (fifth element) and manufactured following 1090 factory production control procedures allowing CE/UKCA marking as required with all Safety critical components as per the Construction Product regulations 2022  

Private clientContract value: £15kProducts used: 0.74kN loading structural glass balustrades to roof terraceWe were appointed on this residential project for a private homeowner in Shenstone, Staffordshire, to provide external structural glass balustrades to the property’s roof terrace. We worked closely with the client from the start of the project to the end, guiding them through the process and providing our advice and expertise to ensure the desired result was achieved. We advised that the balustrade loading weight would need to be 0.74kN – as this was for an external balcony, we chose the correct loading weight to protect the rest of the property and provide a safe and secure balcony feature to the roof terrace. Structural glass balustrades were chosen to provide a seamless view out from the terrace and add the perfect finishing touch to a beautiful outdoor space. Throughout the project, we maintained communication with the client, updating them on our progress and ensuring that they were delighted with the finished result. 

Awel-y-Mor Primary SchoolBauder Thermofol PVC single ply waterproofing systemSynopsis The Awel-y-Mor Primary School site, situated at the heart of the town of Port Talbot in Wales, needed to undergo major redevelopment in preparation for its brand new fit for purpose school to replace the two pre-existing primary schools, which had experienced serious build repair and surplus capacity issues.Bauder Building BoardProject:Awel-y-Mor Primary SchoolLocation:Port TalbotProject type:New buildPV roof area:300m²Investor:Neath Port Talbot County Borough CouncilMain contractor:Dawnus Construction LtdRoofing contractor:Span Roofing Contractors LtdThe specifcationThe Neath Port Talbot County Borough Council wanted the new school to be fitting for the 21st century and bring them to the forefront of modern-day roofing technology. These requirements were met by BauderSOLAR’s innovative photovoltaic system, which delivers significant cost and environmental benefits, as well as providing an eye-catching visual reminder of the importance of sustainability.Roof areas totalling 300m² were fitted with 92 PV modules, which were secured to Bauder’s Thermofol Single Ply waterproofing, enabling the new Awel-y-Mor school to generate at least 25.9 Megawatt Hours of solar power each year. The incredible simplicity of the installation also meant that the entire PV array could be installed in just three days ensuring that there was no disruption to the commencing school term.Products appliedBauder Thermofol PVCSingle Ply System offering a lightweight and cost effective waterproofing solution that is resilient to the natural elements.BauderSOLAR SOLfixxPhotovoltaic system is an innovative renewable energy source that is secured to the roof without any penetration of the waterproofing or roof deck. 92 PV modules were installed with an expected energy generation of 25.9 MWh and with a kWp of 27.14.The resultRoof areas totalling 300m² were fitted with 92 PV modules, which were secured to Bauder’s Thermofol Single Ply waterproofing, enabling the new Awel-y-Mor school to generate at least 25.9 Megawatt Hours of solar power each year. The incredible simplicity of the installation also meant that the entire PV array could be installed in just three days ensuring that there was no disruption to the commencing school term.System installedBauder Thermofol PVC single ply waterproofing system1 Bauder Thermofol U15 FRA 1.5mm thick, reinforced PVC waterproofing membrane. Stated within BBA certificate 06/4354, the Thermofol PVC waterproofing membranes have a service life in excess of 35 years. 2 Bauder PIR MTissue-faced flat board insulation, benefitting from a zero ODP and a Green guide rating of ‘A’.3 BauderTEC KSDA self-adhesive elastomeric bitumen air and vapour control layer with an aluminium foil facing for vapour impermeability AdvocacyJonathan Morris, lead architect for the project, stated:“Our local Bauder representative offered the highest degree of service throughout the project, ensuring our site operation ran smoothly. With the complete roof finish covered by the all-encompassing Bauder guarantee we have peace of mind moving forward with regards to potential future defects.”

Vicky and Nick, the owners of Holloway and Holloway, a London based architecture studio, share their story on living and working under the same roof, in a stunning recently extended house where they added an Unlimited Rooflight. Questions to Vicky and Nick:What was the decision-making trigger in choosing daylight from above?To be honest there was no choice here. In a London mid-terraced property, even a semi-detached one, when you do a side infill to increase the rear of the property by filling in the gap between the properties, it creates a dark space in the centre of the property where there is no natural light.So, you generally counter this by adding roof lights in the ceiling over the new extension, and make sure that they are placed fairly close to the back of the room so that you can flood that space with natural light.Vertical windows tend to allow a good level of natural light to penetrate around 6 meters into a building. Not only do roof lights allow a lot more light in a space than a vertical window, but as you can place these in more central areas in the room, they are nearly the only way to get daylight into the centre of your house.We have our office in the central room of the property, so for us, we had to have good natural light levels in this area as we spend the most amount of time here in the whole house.You added a rather large rooflight to your extension - The Unlimited Rooflight. What impact does it have on the space?It is amazing how bright the space is. We get so much light from above that the space always has a wonderful vibrance to it during the daytime.But I think that possibly what’s even more striking than the amount of light itself is the size of the glass, its 5m² total, split into 2 pieces. It makes it feel as though there is more glass than there is solid roof up there, it really is the wow feature of the whole space.Whilst we had expected that when we designed it as it was always meant to be the feature in the room, what we hadn’t realized was how much it would make the space feel bigger. With extensions on a mid-terrace property, you are often limited as to how high you can build so your ceiling height can be capped at a certain level, but having this huge opening in the middle of the room makes the whole space feel like you’ve got this really grand ceiling height, it has such an effect on how the space feels. Tell us what was the timeline from inspiration to finished interiors? I'm sure it's a question you get very often.Indeed. Well we actually only found out about Vario by VELUX as we were on site, they were just about to start the roof construction as we found out about them, so we didn’t have a huge amount of time and had to get things organized very quickly! From finding the products to getting them on site it was only a matter of weeks, once we had chosen a size for the roof lights all we had to do was confirm the opening dimensions to our contractors, and double check with the structural engineer that the roof structure was ok to support the new roof light. Once that was all sorted all we had to do was wait, it was a very easy process. The project took around 4 months on site in total, but the roof lights go in fairly near the end of the project, so once they’re in it’s all very exciting, as you are close to completion.  

Located in the heart of the vast new Wembley Park regeneration project, the two residential buildings that make up the Landsby East and Landsby West development (Danish for village) are contemporary in design, with apartment interiors that continue the Scandinavian theme. Externally there are roof terraces and first floor level podium gardens, along with 280 generous balconies that add a stylish and aesthetic feel to the exterior finish of the building.A key element of the balconies was the installation of Isokorb® T structural break units from Schöck. The Schöck Isokorb® T units are structural, but their other long-term purpose is to minimise the risk of thermal bridging. Ineffective insulation at the connection points means local heat loss, resulting in more energy being required to maintain the internal temperature of the building. This is a major consequence of thermal bridging, but there are other issues too. Low internal surface temperatures in the area of the thermal bridge can cause condensation, which leads not only to structural integrity problems with absorbent materials such as insulation products or plasterboard, but the potentially serious occurrence of mould growth. So for any project involving balcony connectivity the prevention of thermal bridging is a critical issue.

Orbis OS200 Vertical Bar Infill Side FixOrbis OS211 Glass Infill Top FixProviding more than 120,000 sq ft, of innovation space for high growth enterprises, this project is situated within Imperial College London’s White City campus. Built by a market leader with specialist expertise in modular buildings, this project demanded a high level of innovation, and a balustrade supplier that delivered on cost, quality, and timescales. The main reception area is dominated by a large feature stair providing access to all floors, and the Orbis balustrades with glass infill achieve a stunning first impression and allow maximum light through the space from the vast glazed roof lights above. Throughout the three core stairs, which are used for general circulation and escape routes, the vertical bar infill panels within the Orbis balustrade was used. This robust modular panel solution is pre-manufactured to speed up installation on site, which was extremely important to the main contractor. Individual stair cores were not closed for extended periods of time, which means greater productivity, less management time, and reduced risk for the main contractor.

University Coventry Hospital is situated in the Walsgrave on Sowe area of Coventry and is part of the University Hospitals Coventry and Warwickshire NHS Trust. The hospital opened in 2006, replacing Walsgrave Hospital the original hospital at the site.Twinfix was approached by Principal Contractors William Gough to design, manufacture and install a walkway from the helipad on the first-floor deck to the hospital’s Accident and Emergency department. The requirement was for a robust walkway that was structurally sufficient to withstand the usual weather forces and the down draught from a helicopter in close proximity.Liaising closely with William Gough and designer Pinnegar Hayward Design, the expert team at Twinfix designed, manufactured and installed a 240 sqm free-standing mono-pitch canopy with vertical perforated side panels. This impressive canopy design included lockable double leaf gates to secure the area.The roof comprises of our Multi-Link-Panel Non-Fragile (NF) system powder coated to RAL 5010 – gentian blue and glazed with 16mm multiwall polycarbonate, and the vertical panels were powder-coated to RAL 7037 – dusty grey. As this metal does not rust in use, the walkway will keep its good looks throughout its long life.

Black KlasseCLAD™ has recently been installed on the roof of this incredible £30m+ project and the result is truly stunning.

Overcoming the challenges facing the Council was key to the success of the project. These were health and safety, time, cost, and aesthetics. A cold applied system was used to secure the membrane, eliminating the need for naked flames on the roof. Norwich City Council commented, “The Castle Museum houses collections of national importance, not only did we have to consider the safety of staff and the public, but also the historic collections whose home is beneath the rotunda roof. The need to elimate hot works on this project was a huge issue in specifiying the products to be used.”

The £230m Princesshay Shopping Centre, in Exeter, officially opened to the public in September 2007, as part of the city’s biggest ever regeneration project, with over 70 shops, cafés and restaurants. The roof of the centre, installed when the building was constructed, had caused various problems throughout its life. A Sarnabar system in Lead Grey was chosen, with a T fleece between the composite deck and the mechanically fastened Sarnafil S327-18EL membrane. On a smaller roof with a plywood deck, Sarnafil G410-ELF, an adhered system with a fleece backing, was specified.

Sika's full suit of products helped with waterproofing the scalloped roof at the campus. A combination of Sike Sarnafils waterproof Single Ply membrane, as a flexible and robust membrane, and Sikalastic- 621, as a highly-durable elastic liquid polyurethane system, was used. As well as the roof refurbishment, concrete repairs were also carried out with the use of Sika MonoTop-615 and Sikagard - 550. For the steel reinforcement Sika FerroGard-903 was also used. The refurbishment of the buliding was a great project for Sika to work on as it had solutions for each aspect of the project.

A private art gallery in Betws Y Coed has been roofed using CUPA R4 natural Spanish slate, selected by the client and their contractor on the basis of appearance, performance and cost, as well as their ready availability through local stockists. Work on The Galeri was begun by the owner some three years ago, with locally based Willparr Roofing being tasked with sourcing and installing the thousands of new slates required to weather a structure featuring a dormer window, the valley junction to an existing pitch, and other challenging details.

Fibre cement profiled sheeting from Eternit has been used as part of a £20 million project to refurbish and extend facilities at the heart of Cornwall’s 260-year-old china clay manufacturing industry.Some 5,000m2 of natural grey Profile 6 sheeting was installed on the roof and elevations, and 2,000m2 painted white as an internal roof lining to a new 30x85-metre steel-framed clay drying tube press in Bugle during a 12-month project for Imerys Minerals, the world’s largest china clay producer.