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Green Roof - The Liner Apartments Falmouth

Green Roof - The Liner Apartments Falmouth

Sika Limited

Luxury coastal apartments able to withstand the elements with Sika roofing system. Owing to its beautiful coastal location, The Liner, a nautical-inspired £35 m residential new-build in Falmouth, presented a compelling roofing challenge. Exeter-based roofing contractor, Progressive Systems, assisted by Sika, took on the task, installing a roof to withstand the harsh seaside conditions with an immaculate finish.Green roof composed of:Sika® Sarnafil® G410 18EL PVC Single Ply Waterproofing Membrane.Sarnavap® 5000E SA Vapour Control Layer.Sarnafil® Primer 610.Sarnatherm® ‘G’ insulation.Sikalastic® 625.Sarnafil® G445-13 PVC Protection Sheet.Sika® Green Roof System.
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Asbestos roof coating project in Haverhill

Asbestos roof coating project in Haverhill

Liquasil Ltd

This was the first asbestos roof coating project undertaken with Liquasil products, back in 2013. The roof was heavily soiled and was cleaned using a DOFF steam cleaning machine, delivering 150°c steam to completely kill moss and lichen spores. The metal fixings were treated with Liquasil's corrosion primer and sealed with Non-Sag Sealer before the whole roof was coated with Asbestoseal, the only BBA Approved asbestos roof coating.
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Metalseal Metal Roof Coating - Lichfield

Metalseal Metal Roof Coating - Lichfield

Liquasil Ltd

This 4,000 square metre roof in Lichfield, completed by Projects UK Ltd, was in need of refurbishment and Liquasil's BBA Approved Metalseal 20 was specified for its 20 year guarantee against manufacturing defects. The roof was cleaned and the cut-edges were treated with our unique SWT corrosion primer before a single coat of Metalseal 20 was spray-applied to the roof to provide a protective and decorative finish leaving the roof sheets looking like new.To get in touch, call our team of Building Surveyors on 0121 709 5352.
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Asbestos roof refurbishment coating in Preston

Asbestos roof refurbishment coating in Preston

Liquasil Ltd

This complicated asbestos roof structure was heavily soiled and leaking in numerous places. Asbestoseal was specified because it is the only BBA Approved asbestos roof coating on the market. The roof was cleaned using 150°c steam, which kills all moss and lichen spores on contact, leaving a perfectly clean substrate for coating. The success of any coating comes from its preparation and Liquasil teaches all of it approved installers various cleaning methods. The roof was coated and is now leak free with a much extended life expectancy.
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Permanently fixed roof ladder system – Ascent Aluminium Roof Steps ; Sheffield Aerospace Manufacturers.

Permanently fixed roof ladder system – Ascent Aluminium Roof Steps ; Sheffield Aerospace Manufacturers.

Safety Fabrications Limited

The Ascent Aluminium Roof Access Steps were specified to meet the clients requirement to create a safe access route up & over the “saw-tooth” roof for maintenance personnel. In this instance the Ascent steps were specified for use with an adjacent MSA Latchways climb-latch fall protection system. If collective protection is required handrails can be supplied to one or both sides of the steps. The Ascent Aluminium steps were specified for this project by Eurosafe Solutions Ltd a specialist fall protection company who also installed steps. The Ascent Aluminium walkway steps are tested for use on the aluminium standing seam roof and are secured back to the roof sheet using a proprietary support clamp. The Ascent aluminium walkway is designed in accordance with BS EN 516:2006 Prefabricated accessories for roofing, BS 4592, Industrial Type Flooring and stair treads, BS EN ISO 14122-3 Stairs, stepladders and Guardrail, BS 7976-2:2002+A1:2013 Pendulum slip resistance. And is manufactured under ISO 9001 and CE 1090 factory production control procedures, creating a walkway that is CE / UKCA compliant.The walkway steps can be configured with a handrail to withstand a loading of either 0.36 kN (general duty) or 0.74 kN (heavy duty) and can be supplied with an optional toe-board if required. The system can achieve these loadings without the need for additional bracing, allowing the walkway to be placed against the area to be accessed. UKCA / CE marked. Designed & Tested in accordance with BS EN 516:2006 Class 1 Type C. Designed & Tested in accordance with BS EN ISO 14122-3:2016 where a handrail is fitted. Designed & Tested in accordance with BS 4592-0:2006+A1:2012 for loadbearing and BS 7976-2:2002+A1:2013 for anti-slip. With or without handrail.Standardized modular system roof walkway system. Can be supplied with a range of fixing kits to suit different roof profiles.
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Metal roof coating, Watford

Metal roof coating, Watford

Liquasil Ltd

A roof at teh Jaguar Land Rover premises in Watford was in poor condition and suffering from cut edge corrosion. All of the loose and flaking factory finish was removed using 4000psi pressure washers and the rusted end and mid-laps were ground back to remove the rust. The cut edge corrosion was treated with Liquasil's corrosion primer and the entire roof was coated using the BBA Approved Metalseal.
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A flat roof in the Austrian Alps - INVATHERM

A flat roof in the Austrian Alps - INVATHERM

FOAMGLAS®

A flat roof in the state of Tyrol was used to rigorously test a new non-combustible inverted roof insulation solution for the UK market.
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Commercial Project – Surrey

Commercial Project – Surrey

Russell Roof Tiles

A stable conversion project needed an authentic clay roof finish.
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Metal Roof Coating in Suffolk

Metal Roof Coating in Suffolk

Liquasil Ltd

The original factory finish to the metal roof of this property was failing, with the coating delaminating badly due to UV damage. The gutterless eaves construction meant that both the roofs and cladding had to be coated. Metalseal was specified because it is available in any RAL colour., In this case, Juniper Green was required. The original finish was removed with 4000psi pressure washers , before corrosion was treated with Liquasil's corrosion primer before Metalseal 20 was applied.
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Metal Roof Coating Project in Middlesex

Metal Roof Coating Project in Middlesex

Liquasil Ltd

After first cleaning the roof and attending to rusted areas with Liquasil’s corrosion primer, it was the coated with Metalseal 20 from Liquasil, using airless spray equipment. The specification for this roof was for a special RAL colour. Only Liquasil can make silicone coatings in any RAL colour, so Metalseal 20 was specified for the project. This roof was completed in Forest Green.
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Extra Care, Bedfordshire

Extra Care, Bedfordshire

Russell Roof Tiles

A large retirement village at Parkland Place in Bedfordshire required slate appearance roofs.
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Social Housing – Derby

Social Housing – Derby

Russell Roof Tiles

Russell Roof Tiles supplied tiles to 3 social housing sites in Derby.
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Three brands, one objective – safe access all areas

Three brands, one objective – safe access all areas

Howe Green

Three of the UK’s leading access specialists have come together to form the Access 360 portfolio, providing a total manufacturing solution for roof, ceiling, wall and floor access products for the construction industry. Access 360 comprises Bilco UK, Profab Access and Howe Green. These well-established brands all have a strong reputation for delivering innovative solutions to address the challenges of safe access within a building or external environment. The brand identities have been updated, reflecting the holistic offer that Access 360 presents to the market, to represent the synergy between the brands and the complementary nature of the products.
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Grade II becomes Grade A with Neaco’s help

Grade II becomes Grade A with Neaco’s help

NEACO Ltd

Neaco supplied an extensive balustrade specification to help transform a Grade II Listed former Post Office and Telephone Exchange into Grade A contemporary offices in Sheffield. SDA Architects designed the comprehensive internal revamp of the property, built in the 1920s, to create Steel City House comprising 60,000 square feet of prime commercial space across five storeys. Neaco’s structural glass balustrade forms part of the £10m project’s signature feature: a new central atrium which brings natural light into the heart of the building. The roof terrace also features Neaco’s structural glass balustrade.
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Bespoke balconies and balustrade bridge the aesthetic divide between traditional and contemporary

Bespoke balconies and balustrade bridge the aesthetic divide between traditional and contemporary

NEACO Ltd

The multi-million pound UK headquarters of TPP (The Phoenix Partnership) in Leeds was purpose-built by contractors ISG and designed by Bowman Riley Architects. The frontal elevation of traditional Yorkshire stone with pitched tiled roofing contrasts to a rear façade featuring a contemporary appearance with extensive curtain walling. neaco supplied bespoke balconies and external balustrade to both sections, combining traditional-style railed infills with a contemporary twist in the form of tapered flat-bar stanchions with laser-cut holes. This combination has achieved design consistency across the building whilst harmonising with the contrasting aesthetics of the front and rear.
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Sopralene Flam 250AF used on first UK Passivhaus school

Sopralene Flam 250AF used on first UK Passivhaus school

Soprema UK

Harris Academy Secondary School is a 6 form-entry secondary school in London. The project brief was developed with London Borough of Sutton and Harris Federation, together with multiple stakeholders and the surrounding community. Architype, a top London based architect, were asked to design a new school which could meet Passivhaus standard and also go on to meet BREEAM requirements. The requirement of this high quality development was the integration of environmental sustainability, user comfort and well-being. To meet these requirements they needed a high quality roof specification which could offer thermal insulation and a high performance waterproofing solution.
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Skydoor Roof Access Rooflight Has Helped Open The Roof Space Of Beautiful Holiday Home Located In Michigan

Skydoor Roof Access Rooflight Has Helped Open The Roof Space Of Beautiful Holiday Home Located In Michigan

Glazing Vision Ltd

Skydoor Roof Access Rooflight Has Helped Open The Roof Space Of Beautiful Holiday Home Located In Michigan Case Study
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ABG blueroof - Biodiverse & Amenity Podium Areas, The Post Building, London, UK

ABG blueroof - Biodiverse & Amenity Podium Areas, The Post Building, London, UK

ABG

The Post Building development completely remodels the former Royal Mail Sorting Office located on New Oxford Street in Central London into modern Grade A offices, with street level retail and restaurant space along with rooftop gardens, terraces, and leisure areas. The project received a prestigious RIBA London Award in 2022 and the main roof terrace is open to the public, providing panoramic views over the city. In order to gain planning approval, the development had to be repurposed in line with the ‘SuDS manual’ best practice guidance to minimise surface water run-off in the event of a storm and in order to meet the maximum discharge consent limits set by Thames Water.Basement SuDS storage is expensive and often impractical to achieve in city centre locations. ABG’s blueroof system was therefore chosen as an easy to install alternative to provide stormwater attenuation at roof level. The system is installed across three main roof areas and includes 14 restrictor chambers positioned above rainwater outlets to limit the outflow rate. The system is calculated to control stormwater in the event of a 1 in 100 year storm, based on the local Flood Studies Report (FSR) rainfall data, plus 30% allowance for climatic change.The roof design incorporates a variety of surface finishes, including a resin bound play area, biodiverse green roof areas and paved & decked terraced areas. The roof also includes solar PV arrays and planters supported on top of the blue roof.The ABG blueroof system drains like a normal roof during everyday rainfall events, but throughout the critical design storm periods restricts stormwater run-off, continuously releasing rainwater at a controlled rate until empty.The discharge rate is site specific and forms part of the scheme wide SuDS plan, and means that other downstream measures are not required. The scheme also included sedum green roofs to improve site biodiversity across two further areas.ABG provided project design calculations and all blue roof materials required for the different roof levels, plus our installation service.
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Private Housing – Waterlooville

Private Housing – Waterlooville

Russell Roof Tiles

Russell Roof Tiles supplied Bute tiles in Burnt Orange for a residential housing project in Hampshire.
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London’s Victoria and Albert Museum - Wade HCE Channel

London’s Victoria and Albert Museum - Wade HCE Channel

Alumasc Water Management Solutions

In its largest building project in over 100 years, the Victoria and Albert Museum’s Exhibition Road Quarter achieves architectural cohesion between museum and street with the help of Alumasc Water Management Solutions (AWMS) and Alumasc Roofing Systems. In a project that demonstrates expertise across the full building envelope, Alumasc Wade HCE drainage channels and access covers were installed to provide almost invisible yet functional water management, and a bespoke hybrid roofing system installed using Hydrotech and Derbigum waterproof roofing.Designed by Stirling Prize-winning Architect Amanda Levete and her practice AL_A, the landmark project aimed to “break down the barrier” between the great cultural artery of Exhibition Road and home of over 5000 years’ worth of cultural history.The entire project encompassed the construction of the Salisbury Gallery, a flexible 1100m2 temporary exhibition space, the Blavatnik Hall, a new entrance into the V&A from Exhibition Road, the Aston Webb Screen, a newly created colonnade formed from the original 1909 structure, and the Sackler Courtyard, a key area that strives for unity between the street, the museum, the historical and the modern.
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Decking Pedestals & Green Roof System - Kensington

Decking Pedestals & Green Roof System - Kensington

Wallbarn Ltd

A good example of the before and after effects of laying a sedum roof garden and accompanying deck and paved area onto a small domestic roof terrace. All these products are designed to sit on top of the waterproof membrane (in this case single ply) there was no issue of damage to the roof. The support pads lifted the decking off the roof, eliminating the risk of the timber piercing the membrane, and drainage was maintained through the roof surface since the green roof system has a cavity beneath its own reservoir and drainage layer to allow water run-off.
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University of York Student Residences

University of York Student Residences

Alumasc Roofing

Heslington East Campus Student Residences: Sustainable and Efficient Expansion Alongside the preservation of listed buildings, the University of York is investing in a flagship £130m development for students that promotes wellbeing, community, and sustainability. The initial phase sees 16 brand new student accommodation blocks and 2 communal hub buildings providing flexible social spaces. Surrounded by stunning lake views and natural habitats, the buildings are part of a huge initiative to expand the student accommodation offering.GOALSArchitects Sheppard Robson alongside Graham Construction sought to futureproof accommodation by incorporating multi-use buildings, including catering outlets and social hubs. Key to the brief was using the latest in safety, energy efficiency, longevity, and warranty credentials. Graham Construction’s use of modular external sandwich panels, prefabricated steel bathroom pods, and pre-assembled services distribution racks used Modern Methods of Construction with off-site construction techniques.CHALLENGESThe major challenge was to specify a roofing system that could keep up with the pace of the build, given the typical building was constructed from start to finish in circa 14 weeks.The roof deck comprised of precast concrete slabs which facilitated the works programme for speed of construction and consistency in build quality.Alumasc’s challenge was to find not only a waterproofing solution that was able to keep up with such speed of construction but also to meet a truly sustainable life cycle equalling the lifetime of the building.A key consideration in the design was the roofing materials’ thermal properties. To meet the u-value target of 0.15, Alumasc’s XPS Plus insulation was specified, providing a single layer of 175mm, which reduced the height of the overall build-up when compared traditional XPS.SOLUTIONHydrotech 6125 Waterproofing System / Derbigum Hybrid Upstands For over half a century Hydrotech Monolithic Membrane has been successfully used by architects and specifiers, ensuring some of the world’s most prestigious buildings and structures are kept watertight. With no product failures in over 50 years and guaranteed waterproofing integrity for the lifetime of the structure, Hydrotech offers a total life cycle solution for the building.Hydrotech was specified on the main roof areas for this project as it easily meets individual requirements of the buildings. In addition, the system is designed to last the lifetime of the building or structure to which it is applied, giving long-term waterproofing integrity and no future replacement costs.Applied in a hot liquid state to the deck, and including a polyester reinforcement, the bond of Hydrotech MM6125 is 100% absolute. There is no risk of water tracking below the membrane and because it is monolithic, no possibility of lap failure.DERBIGUM WATERPROOFINGDerbigum sustainable roof system was selected for the upstand areas. This hybrid solution was developed to improve the thermal efficiency in all areas to mitigate against cold-bridging with minimal insulant thickness. Derbigum bituminous membranes are high-performance waterproofing systems offering extended warranties and the highest levels of project support. The upstand zones benefited from Derbigum Mineral which is a mineral surfaced composite reinforced membrane.ROOFTOP MANAGEMENT STRATEGYIn addition to the waterproofing solution the buildings benefit from the full Alumasc rooftop management service. This included the design and supply of safety systems, accessories, and over 20 AOV smoke hatches meeting all British and European standards.Specific safe zones were designed by Alumasc Roof-Pro and positioned around all roofs for safe access. Purpose made clips for installing lightning conductor tape without roof penetration were also provided. All rooftop accessories are part of the Alumasc Roofing specification and therefore can be found back-to-back within the Alumasc 35-year system warranty.PROJECT DATACompletion: Autumn 2022 BuildingType: Student Accommodation ProductApplication: Hydrotech & Derbigum waterproofing systems Certification: BBA Approved & European Technical Approval Architect: Sheppard RobsonMain Contractor: Graham ConstructionAlumasc Registered Roofing Contractor: Tandragee Roofing
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Woodland Trust Curved Roof

Woodland Trust Curved Roof

Polyroof Products Ltd

As described by the Woodland Trust, Glen Finglas is a great expanse of ancient woodland, lochs and open heathland, sitting at the heart of Loch Lomond and The Trossachs National Park and home to one of the best examples of upland wood pasture in Scotland.The newly constructed Gateway Building was designed to blend in with the surrounding woodlands and featured a circular timber-clad exterior with a spiralling, curved roof. The Woodland Trust approached RTA Building Limited, a Polyroof Approved Contractor, to provide a guaranteed waterproofing solution that would complement the aesthetics of the building.After comprehensive discussions and careful evaluation, we recommended the Polyroof 185 Warm Roof System for this unique project. This system stood out due to its exceptional BBA 30-year durability rating, impressive life-cycle costing performance, and an insurance-backed guarantee that offered the client peace of mind.The implementation process involved the meticulous installation of the Polyroof membrane, which flawlessly covered the flat roof areas while seamlessly following the curved perimeters and intricate spiral design. To ensure a fully waterproof edge detail that complemented the building’s contours, we installed a bespoke GRP capping. This robust combination provided Woodland Trust with a reliable and long-lasting roofing solution.Through our collaboration with Woodland Trust, we successfully implemented the Polyroof 185 Warm Roof System, delivering a durable, and cost-effective roofing solution. Our system’s exceptional durability rating, long-term life-cycle costing performance, and insurance-backed guarantee provided Woodland Trust with the confidence that they had chosen a roofing solution that would stand the test of time. With Polyroof, Woodland Trust achieved a seamless, reliable, and environmentally conscious roofing solution for their unique project.
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Bodmin Jail - Riverstone Ultra

Bodmin Jail - Riverstone Ultra

Spanish Slate Quarries UK Ltd

The Bodmin Jail on the edge of the Bodmin Moor in Cornwall was originally built by military engineer John Call during the reign of King George III in 1779, as part of the ground-breaking Prison Reform. The buildings in their current form were completed by 1881. The later 19th century saw part of the site transferred to the Admiralty, and the Bodmin Royal Naval Prison was established by 1887. The building is statutorily listed at grade II and has been renovated as a luxury 70-bedroom boutique hotel and a museum.Over the course of history, the roof structure and slate have suffered significant degradation, which has given Mallino Developments Ltd. the challenge of immediate renovation. Twelve Architects, a London-based firm are behind the design of the hotel, while the main contractor C Field Construction and engineers ARUP Group turned the design into reality. Close attention was paid to the design aesthetics required to achieve a contemporary looking roof structure on the historic building.
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Elegant form and functional excellence for dramatic new Perthshire residence

Elegant form and functional excellence for dramatic new Perthshire residence

Rundum Meir (UK) Ltd

A Rundum Original bespoke garage door provided the ideal solution for a stunning new contemporary home on the banks of Loch Tummel overlooking Perthshire’s famous mountain, Schiehallion. The building envelope’s dramatic parallel walls of sawn Caithness stone and polished concrete flank both sides of the house, with the property’s northern end featuring a dramatic main sitting room surrounded by two-storeys of frameless glass. An elegant Rundum Original side sliding garage door features to maintain the external beauty of the property, hand crafted to a bespoke design in Germany using Western Red Cedar.
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Biosolar wildflower green roof school project

Biosolar wildflower green roof school project

Wallbarn Ltd

New school construction with biosolar wildflower roof system. Selection of sedum and native wildflower species pre-planted into M-Tray modular green roof trays for fast and easy access to and installation on single ply roof membrane. Client increased thermal insulation, reduced rainwater run-off, achieved energy savings, protected the waterproofing membrane and attracted wildlife to the roof space.The wildflower / PV roof system will feature in students' learning projects in the future.
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Roof Garden, Lamb Walk, Bermondsey

Roof Garden, Lamb Walk, Bermondsey

SureSet Resin Systems

The roof project in Bermondsey consisted of an accessible green roof for residents on the first floor and a green and brown roof at the next level. Natural Aggregate, 6mm Barley Beach. London
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Asbestos roof coating installation Birmingham

Asbestos roof coating installation Birmingham

Liquasil Ltd

This asbestos roof is being cleaned using a closed box pressure wash, with all waste water being filtered and recovered for re-use. Once cleaned, the roof is coated with the BBA Approved Asbestoseal system which includes: SWT CORROSION PRIMER - fully rust and wet tolerant, the primer is applied to all metal fixing to stop further corrosion. NON-SAG SEALER - is applied to all fixings and small holes and cracks to permanently seal them. ASBESTOSEAL 20 is brush applied to the roof sheets to provide a new finish.
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Bowthorpe

Bowthorpe

Forterra Building Products

The ChallengeBowthorpe is a high-quality development of 174 new homes together with landscaped open space, community gardens and a children’s play area on an area of undeveloped land in Norwich.The development was inspired by nearby Bowthorpe Hall and explored the idea of an historic walled garden with homes built within its boundary.As part of the site’s high environmental standards, it was critical that existing features, such as important tree belts and hedges were retained while also accommodating a proposed network of cycle and walking routes.The SolutionForterra’s Breckland Reserve – a red, tumbled, wirecut brick – was used alongside flint on the ground floor of some of the homes to create detailed wall work that echoed Bowthorpe Hall.Traditional red tiled roof pitches sit above the wall and reference Bowthorpe Cottages. On top of the wall sit cedar shingle clad upper floors.Traditional terraces form most of the new homes, with flats provided alongside unique mews-style housing.The BenefitsThe building form, the materials selected, and the use of pattern and decoration, helped to create a visual connection to the local area.
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Green roof on Starbucks cafe

Green roof on Starbucks cafe

Wallbarn Ltd

This project involved a brand new Starbucks drive-thru being built in West London where the customer wanted the overlooked rooftop to be green. The customer was able to give the basic dimensions to our team and describe how they wanted the roof laid out. We then calculated the exact quantity of units needed with our inhouse software and gave delivery and installation guidance to the contractor and end client. Wallbarn also supplied the materials for the semi-extensive border including geotextile fleece, drainage board and our specially-developed substrate for a comprehensive green roof solution,
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Private Housing – Stirlingshire

Private Housing – Stirlingshire

Russell Roof Tiles

Russell Roof Tiles supplied 26,000 Slate Grey Pennine tiles as part of a £36,000 contract for a total of 13 private homes in Falkirk.
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Private Housing – The Limes

Private Housing – The Limes

Russell Roof Tiles

ussell Roof Tiles is supplied our Natural Range Galloway and also the profiled Pennine tile to a total of 128 new build homes in Leicestershire.
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Retractable Glass Roof at The Hawk's Nest

Retractable Glass Roof at The Hawk's Nest

Breezefree Ltd

The largest SolaGlide retractable glass roof in the UK is the talk of the town! Installed by Breezefree at The Hawk's Nest in London’s Shepherd’s Bush.Working with the team at Birdhouse London, we were presented with the challenge of transforming their outdoor space at The Hawk’s Nest into a flexible all-year space, whatever the weather. Challenges included satisfying the requirements of TfL due to the tube line running immediately above, as well as the venue’s request to have a space to trade in during construction work.The result is a chic hospitality space with a sliding roof that offers options for open airiness or full enclosure from the elements. The roof also offers significant soundproofing, reducing impact on neighbours on their most lively nights. The transformation means that the venue can offer their delicious cocktails, and pizzas that have to be tasted to be believed, underneath an elevated and stylish roof that will help draw diners and revellers for years to come.
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Coventry University green roof retrofit

Coventry University green roof retrofit

Boughton Loam

Boughton’s Intensive green roof substrate has been successfully trialled in a ground-breaking analysis project at Coventry University assessing the feasibility of ‘greening’ landscapes with ecological beneficial habitats.  With the objective being to research the benefits and plausibility of incorporating green space and wildlife-friendly habitats into heavily built-up areas, Coventry University handpicked Boughton’s Intensive IN1 substrate based on its nutrient content, weight, and the inclusion of a water supply in chambers beneath the sub-base.The majority of green roofs in the UK fall into the ‘extensive’ category and are based on a low growing succulent, Sedum, which only requires a few centimetres of substrate to grow, whilst intensive green roofs provide a deeper soil depth and can support a more complex plant system. To this end, Coventry University wanted to explore the advantages of intensive green roofs, which offer greater biodiversity, often create accessible spaces, and offer the best insulation properties and storm water management. The organisation partnered with SEL Environmental, who provided its intelligent water management systems for the project.Boughton’s Intensive IN1 substrate boasts greater organic content than extensive substrates, meaning it supports larger plants and can be installed at greater depths, varying from 100-500cm. IN1 provides a stable growing medium for wide variety of plants in intensive green roof installations, including green roof lawns, shrubs and trees.Depending on the substrate depth and plant type, permanent irrigation systems (above or below ground) are sometimes installed with this substrate to as a backup for extended dry periods. They are not required for everyday irrigation, as the substrate has the ability to hold onto sufficient moisture during ambient conditions. The project, funded by Knowledge Transfer Partnership (KTP) and headed up by Sophie Barron-West, followed plant growth for four years from 2017, with a break due to Covid 19. Dr Stephen Coupe and Dr Liz Trenchard from the University’s Centre for Agroecology, Water and Resilience (CAWR) offered their research expertise.CAWR’s Dr Stephen Coupe says: “The technical requirements of Boughton IN1 were a big part of why we chose it. We also wanted the chance to get as many wildflowers in the space as possible. The nutrient levels were perfect because it wasn’t too rich. In fact, it was a ‘just right’ formulation that wasn’t going to overstimulate but would also deliver enough nutrients for what we needed. Ultimately it was going to be perfect for long-term sustainable plant growth.”He continues: “Reliability was another consideration because we knew we could get it delivered on site on time and, because of Boughton’s location in Kettering, we weren’t concerned about lead times, so that was a plus. It’s safe to say it was a studied choice.”Ground-breaking resultsAccording to the University, the trial resulted in ground-breaking analysis into how different types of green roofs can be created and maintained, as well as what their benefits would be alongside others in a built-up area.  The project successfully demonstrated the ecological impact of placing retrofit green roofs onto existing infrastructure, even with a focus on wildflower species and a relatively short development time. An independently-conducted ecological survey recorded five insect species that have national and local rarity value, including two species of bee that are deemed ‘nationally scarce’ and ‘nationally rare’. Of 457 preserved specimens taken on the green roofs at Coventry University, a total of 120 different insect species were recorded, including wasps, sawflies, hoverflies, beetles, and as many as 11 species of bee.  Coventry University’s findings revealed that the innovation in green roofs has improved and increased the total constructed habitat for rare insects. Research has also enabled better water management alongside habitat enhancement. This research has been incorporated into SEL’s product range, where green roofs are now used across four sites in Coventry, London, Aylesford and Blackburn. CAWR’s Dr Stephen Coupe said: “Ecology, biodiversity and wildlife are largely forgotten by planners, designers and builders in developments. Most green roofs installed in the UK are based on sedum, and, while there are additional features that can be added to these green roofs to improve biodiversity, they are rarely incorporated. Our findings, using Boughton’s Intensive green roof substrate, are that the retrofit of green roofs is feasible and, more than four years into development, IN1 has supported verifiably diverse green roofs. The plants on these roofs supported several insects that have rarity status in the UK, which is very positive.” Dr Coupe adds: “Whilst it is probable that substrates take many years to develop anything like the maturity comparable to natural soil, after just four years, IN1 went from having no recordable eukaryotes, to a concentration of organisms, including worms, soil mites and rotifers.”  Boughton Business Development Manager, Jason Lock comments: “Boughton was delighted to be part of this groundbreaking project and buoyed by such positive findings. Our products have been used successfully in a number of iconic green roof developments around the country over the years but it was a pleasure to be involved in such an important trial that would deliver verifiable results assessing the potential for green roofs to create new habitats in urban environments and enhancing local ecological diversity. Boughton offers an extensive range of green roof substrates and we welcome any research that helps further innovation around the application of green roofs.” The experiment at Coventry University is ongoing and the team are set to feed back again at the end of the summer about how prolonged dry weather has affected results. Dr Coupe says: “The beauty of this project is that there is no general timeline for a piece of green space. We need funding to support our ongoing investigations but there are options and opportunities for long-term research. It can last for the lifespan of the site and I think we will see really interesting developments. There is no reason why, over time, these green spaces would be indistinguishable from an existing habitat.” Boughton’s portfolio of green roof substrates are specifically engineered for different types of roof greening, both for domestic and commercial projects. A full product specification is available for each of Boughton’s Green Roof Substrates, and other landscaping products, making exact specification simple and straightforward. There’s also a section on each product listed online, titled ‘to specify (copy & paste)’, designed to make your job even easier. To enquire about your next project, contact Boughton by calling (01536) 510515 or email sales@boughton.co.uk.
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Roofshield - S&J Roofing, Bath

Roofshield - S&J Roofing, Bath

A Proctor Group Ltd

Another housing refurbishment is set to benefit from the high-performance Roofshield breather membrane. The world-renowned Roofshield membrane from the A. Proctor Group has long been recognised as a first-class roofing membrane solution, providing a pitched roof underlay that is air and vapour permeable.Specialist roofing company S & J Roofing in Bath has been providing roofing services since 1981 and has established a reputation for high-quality roofing work for all kinds of domestic and commercial works, from restoration to complete new re-roofs down to minor repairs.Naomi Richards of S & J Roofing commented, “we have used Roofshield on many of our projects, Roofshield will always be our number one go-to product. Using Roofshield leads to savings in both labour and material costs, keeping the installation team and customers happy. Roofshield was the most cost-effective solution to control the interstitial condensation in a pitched roof. Roofshield is the most reliable product on the market, so it is used on every one of our projects.”Roofshield is a unique, three-layer, nonwoven, spunbonded, polypropylene breather membrane with a patented melt-blown core, and it provides a secondary barrier to the ingress of rain, wind, and snow. Designed with a low vapour resistance, it is air-permeable, with the additional benefit that it eliminates the incidence of interstitial condensation in pitched roofs.The exceptional performance of Roofshield has been successfully incorporated in many of the most demanding locations worldwide. Its characteristics allow pitched roofs to breathe without needing air gaps or secondary venting. Its patented SMS (Spunbond Meltblown Spunbond) structure allows high levels of airflow and the transport of moisture vapour, making the formation of condensation in the roof space virtually impossible. Numerous vapour underlays use an airtight VP film layer to achieve their performance. However, the exceptionally high vapour permeability and air permeability of Roofshield means that it can perform in conditions in which air-tight alternatives will not.The exceptional air permeability performance of Roofshield means that the roof space will result in similar air changes to that of a roof using traditional eaves/ ridge ventilation. Therefore, another advantage of incorporating Roofshield into the roofing design is that it can lead to savings in labour and material costs due to removing the need for these vents as well as a separate VCL at ceiling level.
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T-Pren on Recreational Centre, Calgary

T-Pren on Recreational Centre, Calgary

Matthew Hebden

Nearly 1000 metres of T-Pren gutter expansion joints were installed on the 28,000 sq.m. curved roof the Rocky Ridge recreational centre in Calgary, Canada. The wide curved gutter required long special lengths of T-Pren, 9-18m long, and were installed in pairs to provide double the expansion movement. T-Pren forms a waterproof expansion joint, which eliminates the standard step detail and so reduces the number of rainwater outlets required. T-Pren is a composite material made from neoprene and metal bonded under controlled factory conditions to ISO 9001 quality standards.

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