Tarmac

Background:Canterbury’s Art Museum and library, The Beaney Instituteis a Grade II Listed, Victorian building dating back to 1900.The Institute was granted £11.6m by the Heritage LotteryGrant to conserve, repair and restore the existing buildingplus create an extension that would double the size of theInstitute in order to provide better facilities to the museum,art gallery and library.The Solution:Limelite plaster from the Heritage range was used torestore and protect the internal walls throughoutthe Institute. Limelite Renovating Plaster was appliedto control and minimise dampness that can occur inolder properties. High Impact Finishing Plaster was thenapplied, creating a BBA approved plaster system allowingthe walls to breathe while protecting them from damage,maintaining a heritage-style appearance.The Outcome:The Limelite plaster system was the perfect solutionfor The Beaney Institute. Important pieces of art andmuseum artefacts are protected from condensationand salt transfer from the walls.This modern solution works sympathetically with thefabric of the building providing the aesthetic finishexpected of a building of its character whilst also beingdurable enough to withstand the high footfall of thevisiting public.

Resurfacing was required for this busy supermarket and public car park serving Billericay town centre. In addition to replacing the old surface, works included reconfiguring the layout with additional parent & child and disabled parking bays and the creation of pedestrian walkways with clear demarcation. Tarmac’s ULTIDRIVE 6mm asphalt was selected as it has a close texture finish to provide a surface that is both durable and able to resist the effects of tight turning vehicles. ULTIDRIVE is a specialist asphalt with an advanced modified binder that provides enhanced workability during installation. This assists with compaction and finish, especially when hand laying around ironwork. It also provides improved resistance to rutting and deformation from vehicle loading and to scuffing and abrasion from power-assisted steering. ULTIDRIVE has a higher softening point temperature than conventional materials and resists occasional fuel and oil spills.

A new flooring solution was required as part of a large, high-specification selfbuild housing project on the stunning Archerfield estate in North Berwick. Underfloor heating had been specified for the ground floor of the house and it was important that the chosen floor solution would help to optimise heating efficiency. Given the scale of the project it was also important that the chosen screed solution could be installed quickly over a large area to fit within the build programme. Following initial discussions and a successful pump trial the customer decided to use Tarmac’s TOPFLOW Screed C cement based liquid screed.TOPFLOW Screed C is a free-flowing, cement based liquid screed that can be trafficked after just 24-48 hours and dries within 21-28 days. It can be pumped into place and allows large areas to be covered quickly with up to 120m2 laid in as little as 45 minutes. Fast drying times mean it can be laid later in the programme when the building is fully water-tight and still hit deadlines for installation of flooring. It is ideal for use with underfloor heating systems. As a self-compacting screed, it fully encapsulates heating pipes without leaving any voids and is also a more conductive medium than traditional sand and cement screeds, improving the thermal performance of the system. It is also compatible with most cement based adhesives meaning it can be used with a wide range of flooring types.The fast-drying times and early trafficking characteristics of TOPFLOW Screed C enabled other trades to follow on quickly, helping to provide continuity and efficiency within the client’s build programme. The contractor was delighted with the outcome, commenting on how good the material was to work with and on the excellent finish achieved.

The client required a durable, low-maintenance, all-season surface for this 3.3 km stretch of two-way, segregated cycleway in Birmingham that would offer clear demarcation and provide a safe, appealing route for cyclists.ULTICOLOUR, Tarmac’s durable coloured asphalt was chosen to surface this cycleway, in a mid blue colour, to provide clear demarcation from the existing road surface. Using a high performance clear binder it offers brighter coloured asphalts, ideal for demarcation. ULTICOLOUR SMA is BBA HAPAS approved for use on UK highways as a coloured thin surface course and has been in use on UK roads for over 20 years. It has proven to be highly durable, delivering lasting performance, even on highly trafficked roads. ULTICOLOUR can be laid quickly over large areas using standard paving equipment, just like a conventional surface course.

With bright colours that improve demarcation on roads and cycleways and an impressive track record of long term performance on UK roads, Ulticolour was the natural choice for this sustainable transport project.ULTICOLOUR coloured asphalts are BBA HAPAS accredited for use on UK highways as a thin surface course and have been used on UK roads for over 20 years. ULTICOLOUR asphalts use a clear binder and colour matched aggregates to produce brighter coloured asphalts that provide effective demarcation on footpaths, cycle lanes and highways. They have demonstrated impressive durability and long-term performance, even on heavily trafficked routes like busy bus lanes. 

This new adventure village at a large Haven holiday park in Gwynedd, Wales required a safe decorative surface for visitors. The light buff coloured asphalt complemented both the design of the adventure village and the coastal setting far more than conventional black asphalts or block pavers.

Ulticolour coloured asphalt was used as part of this striking geometric design for a community space, as part as part of the regeneration of the former Ravenscraig steel works.

Cann Hall Skate Park in Waltham Forest, East London had been closed after the steel frame and plywood structure had fallen into disrepair. A refurbishment proposal was put together with funding from the Council’s Greenspace department, government funding secured by the Council’s youth service team and a donation from the local police Safer Neighbourhood Team. The designer chose TOPTINT coloured concrete as part of a high contrast design that would emphasise the bold geometric shapes used. Available in a wide range of colours, TOPTINT would deliver the smooth, durable finish required for the skate park surface in the bright, contrasting colours that the designer was looking for.TOPTINT coloured concretes use liquid colour pigment which is UV stable meaning that the colour will not degrade over time from natural sunlight. Also, because this liquid pigment is evenly mixed throughout the concrete, the colour resists surface wear, even in busy locations like skate parks.Read the full story at: https://tarmac.com/case-studies/coloured-concrete-for-london-skate-park/

Funding was secured to renovate a Grade II listed lido in Pontypridd. The lido, which had remained derelict since 1991, was given a new lease of life after the local authority clinched the funding required to restore it back to its former glory. As part of the scheme, the existing derelict buildings would be renovated and the Lido bathing area remodeled into three heated pools. The restoration included external covered showers, heated changing facilities and a learning and historical interpretation centre. The client needed a coloured product that was highly durable, easy to place and maintain, available in a range of colours and, most important of all, capable of retaining its colour and beauty. TOPTINT coloured was recommended as the ideal solution. TOPTINT contains an integral colour pigment which is UV stable meaning that the colour will not degrade from natural sunlight. Also, because a liquid pigment is used the colour is evenly mixed throughout the concrete. As this pigment is integral to the mix it is a long lasting and frost-resistant solution, requiring little on-going maintenance and therefore making it a more sustainable long term solution.

This leading residential housing developer, required a new surface for the car park at its headquarters. It was a large site, with around 200 parking spaces for staff and visitors. The new surface would need to withstand the impact of regular vehicle movement and the abrasion caused by power assisted turning. The surface would also be used by larger vehicles making deliveries. Tarmac’s ULTIDRIVE asphalt was chosen as the solution. Designed to resist the long term effects of daily vehicle movement, ULTIDRIVE is a high performance asphalt with a smooth and highly durable finish. An advanced modified binder provides improved resistance to scuffing and abrasion from power-assisted turning. It also reduces softening in hot weather. ULTIDRIVE also provides enhanced resistance to temporary fuel and oil spills compared to conventional asphalt.

The Margam Green Energy Plant is a long-term, multi-million pound investment into the Welsh economy to help meet the country’s renewable energy targets whilst also strengthening the country’s energy security. A durable concrete was required for the storage silo that housed wood chip to feed the plant.For this project Tarmac suggested their TOPROC SY be used as an overlay on the finished concrete slab as a protective high strength screed. TOPROC SY comprises a micro-silica mix with steel and macro fibres designed to give high levels of abrasive and impact resistance. This product is highly suited to heavy industrial areas such as container handling, metal recycling, waste, loading bays and any other aggressive environments. The main benefit is extended length of time the product will perform compared with traditional concrete therefore saving cost on continual replacement.

Digbeth One 2 is a large development of modern apartments located in Digbeth, a thriving and rapidly developing area close to Birmingham City Centre with a mix of high-rise housing, restaurants, arts and technology businesses.With around 20,000m2 of floor area to finish with screed, a flooring solution was required that could be installed quickly and efficiently in line with the build programme.The fast-drying times and early trafficking characteristics of TOPFLOW Screed A FD liquid anhydrite screed enabled fast installation and allowed other trades to follow on quickly, providing continuity and efficiency within the client’s build programme.

This major redevelopment of Charlton Park Academy school involved replacing temporary mobile classrooms and a single storey building with a two-storey steel framed brick building to better meet the needs of students, teachers and carers. A structural flooring solution was required for use over precast planks, covering 800m2 on the ground and upper floor at a depth of 75mm to 120mm. Space and access would be challenging, due to the small footprint of the site, proximity to the existing school building and access from a busy main road. Given the large floor area, a traditional sand cement screed would have been very time consuming to place. Tarmac’s TOPFLOW SF a self compacting steel fibre reinforced concrete was chosen as the solution. Its flowing nature would allow it to be quickly pumped into place and adapt to the variable thickness criteria. TOPFLOW SF is designed to act as a structural topping with both, steel mesh & fibre reinforcement. The steel fibres added to the TOPFLOW SF gave its robustness and flexural strength as it was being placed over a precast plank system that could flex with loadings. They also reduced the risk of cracking. By replacing steel mesh reinforcement, it helped avoid problems with access, storage and handling and kept the site open for parallel trades. Using TOPFLOW SF rather than a sand cement screed or reinforced concrete, improved productivity and saved time. This saved 13 days or just over 2.5 weeks on the programme. 

This major expansion of the deep-water container terminal at Liverpool docks would significantly increase the footprint and capacity of the site. The site handles the world’s largest container ships and connects road, rail and canal networks directly to the heart of the UK mainland. As part of this project, external concrete surfacing was needed that would deliver long term resistance to the high volumes of HGV traffic using the terminal. After discussions with the contractor, the solution proposed was Tarmac’s TOPFORCE fibre reinforced concrete with a combination of synthetic macro and micro fibres. TOPFORCE can eliminate the need for some traditional steel reinforcement, making it quicker and easier to place. It offers excellent longterm durability making it ideal for commercial and industrial sites used by HGV traffic. This solution would deliver a saving in both labour and material costs and avoid the budget impact of the rising cost of steel. As well as improving the durability and structural performance, the use of macro fibres also improved sustainability significantly by reducing embodied carbon compared to traditional steel reinforcement. 

As part of its UK expansion program Aldi was building a new £59 million regional distribution centre and offices at Wentloog near Cardiff.Over 10,000 m3 of TOPFORCE fibre reinforced concrete was supplied over a period of 13 months for the external floor slab. The TOPFORCE concrete reduced the effects of shrinkage and settlement cracking, while enhancing the surface properties and durability of the hardened, cementitious product. 

The Audley Stanbridge Earls retirement village is an exclusive residential development of 155 luxury retirement apartments and cottages designed around a Grade II listed Tudor Manor house on a 32 acre site near Romsey, in Hampshire. Underfloor Heating had been specified as part of the design and the large floor areas now needed to be finished with floor screed that could be installed quickly and efficiently within the operating windows provided by the main contractor.TOPFLOW Screed A Thermio + offers a higher thermal conductivity than conventional sand-cement screeds, can be laid thinner and fully encapsulates heating pipes without leaving any voids. This makes it ideal for use with underfloor heating systems where it helps to improve the thermal performance and energy efficiency of buildings. All TOPFLOW Screed A products are made from gypsum and are completely cement free, with a binder made from 98% recycled material. This gives it a lower carbon footprint than a conventional cement-based screeds, saving up to 20.45kg CO2e per m2, making it a more sustainable choice.

The Glass Yard is a prestigious mixed office and retail development in Chesterfield, on the site of what was the once the largest manufacturer of domestic glassware in the UK. It has been designed sustainably and ergonomically by developer Blue Deer Ltd. for an open plan, daylight filled environment. The client approached Tarmac’s representatives looking for a safe, practical, durable and visually distinctive finish for the main external walkways and first-floor balconies that would complement the modern design and sustainable ethos of the building. After providing advice and number of samples, the client chose TOPTINT Glow a unique, glow in the dark decorative concrete that uses light sensitive chippings to help illuminate areas such as footpaths, cycleways and pedestrian areas. The glowing aggregate provided a passive and energy efficient form of demarcation to help guide clients along the balconies and walkways at night-time and in low ambient light conditions. This fitted with the building’s sustainable design ethos. The gentle glow provided by the light emitting chippings also provided an ambience that was sure to be a talking point for customers and would help put the new development on the map.

Heavy duty surfacing was required for new access roads and car parking areas as part of a project to extend this business park located close to the A1 near Biggleswade. Using HGV resisting Ultiphalt HD asphalt on access roads combined with ULTIPOROUS free draining asphalt on parking areas provided both sustainable drainage and long term durability.

The car park at Syngenta’s research centre at Jealotts Hill to the north of Bracknell needed resurfacing. The new car park surface needed to be durable enough to cope with frequent HGV traffic and deliver a lasting, low maintenance solution.As expected, ULTIPHALT HD was installed quickly, within the client’s schedule and the car park was marked-up and re-opened just 12 hours after the asphalt was laid. The speed of the work meant no disruption to Sygenta’s daily operations, employees or customers. The proven durability of ULTIPHALT HD will also help to minimise future maintenance requirements and associated costs.

A private landowner wanted to develop a large multi-purpose agricultural facility for both arable and potential livestock use at their farm in Leicestershire. Part of the requirement was external surfacing, which would need to be hard wearing and deliver long lasting durability in this demanding environment, including regular use by heavy agricultural vehicles. After discussions with the contractor, the solution proposed was Tarmac’s TOPFORCE fibre reinforced concrete with a combination of synthetic macro and micro fibres. TOPFORCE is a fibre reinforced, high performance concrete, that eliminates the need for some traditional reinforcement. Quicker and easier to place than traditional steel mesh reinforced concrete, TOPFORCE concrete offers excellent long-term durability and performance. This makes it ideal for heavy duty flooring or hardstanding applications. This solution would deliver a saving in both labour and material costs and avoid the budget impact of the rising cost of steel. As well as improving the durability off the finished concrete, the use of macro fibres would also improve sustainability significantly by reducing embodied carbon compared to traditional steel reinforcement. 

Dawnus Civil Engineering were commissioned by Cardiff CC to construct a hydro electric power station at Radyr Weir. The £2.6m scheme comprised of damming the section of works from the River Taff and constructing the structure to house the Archimedes turbine screws. They required a concrete that could take the weight of the screws 3 days after pouring and asked for a 3 day strength of 50N.Tarmac suggested TOPROC ED which is a high performance readymixed concrete suitable for use in industrial, commercial and infrastructure construction where high early strength is required.

A complete rework of a postmodern office building (60 London Wall), situated in the heart of the City of London. The project aim was to extensively refurbish, reconfigure, reinvent and reposition the building.Due to the addition of a composite metal deck floor extension and additional steel frame for the top floors, Tarmac’s Toplight C lightweight structural concrete was seen as the perfect solution as it could be pumped and ensured a weight loss of 30% whiel maintaining the necessary structural performance.

Limelite Heritage Lime Mortar, a lime based cement free mortar was chosen for renewal of iconic York Guildhall site. As well as matching the visual aesthetic, the flexibility of Limelite Heritage Lime Mortars allow for slight movement and thermal expansion throughout the life of the building and reduce the risk of cracking. They can also reduce the need for expansion joints to improve the final appearance and along with the ready-to use pre blended formula, reduce build time for the contractor. 

As part of a major Heritage Lottery funded refurbishment project to transform Hull’s Grade II* listed Maritime Museum, Limelite Whitewall One Coat Plaster was chosen as part of a damp proofing system for the converted basement. The moisture resisting properties of the plaster makes it ideal for use with cavity drain membrane systems and tanking systems in underground and humid environments. By helping to control humidity it would protect museum artifacts while in storage . The tough, impact resistant finish would also help protect the walls from accidental damage when items were moved in and out of storage.

As part of a £44m project to build a major new police operational command centre, surfacing was required for the large parking area and access roads. The parking area would be used by more than 1,200 officers and support staff and a wide range of vehicles from police cars to heavy goods vehicles. Originally an AC 10 close graded surface course material had been specified. However, after early engagement with the surfacing and main contractor, it was clear that a more robust and durable solution was required that could withstand the high volumes of traffic using the site.Tarmac’s ULTIDRIVE asphalt was chosen as the solution. Designed to resist the long term effects of daily vehicle movement, ULTIDRIVE is a high performance asphalt with a smooth and highly durable finish. An advanced modified binder enhances the toughness of the surface, provides improved resistance to scuffing and abrasion from power-assisted turning and reduces softening in hot weather. It also gives enhanced resistance to temporary fuel and oil spills compared to conventional asphalt surfacing.

In early 2020, Birmingham City Council granted planning permission for the redevelopment of Alexander Stadium, ahead of the Commonwealth Games to be held in 2022. As part of this large-scale redevelopment, the client needed a footway surfacing material that would combine visual and aesthetic appeal with a long-lasting finish, tough enough to withstand use by the thousands of visitors expected for the Commonwealth Games.  The new coloured asphalt footways around the stadium track matched the grandeur of the new stadium development and provided the visual impact and visitor appeal that the client was looking for. It also helped provide clear demarcation for spectators to identify pedestrian footways and segregate vehicular traffic from foot traffic. The proven durability of ULTICOLOUR asphalts will ensure that the new surface should be maintenance free for many years.

THE CHALLENGE Milner Hall, a former chapel in Winchester, is one of the oldest structures in the city and a building of great architectural and religious importance. Built by the Reverend John Milner in 1792, the hall is now used for community events and meetings. In addition to the significant heritage of Milner Hall, an X-ray of the western elevation found a number of voids in the foundation due to hundreds of years of water damage. What’s more, part of an inadequate retaining wall had collapsed onto the same elevation, with the potential to cause further damage if left untreated. When Tarmac’s Limelite team was approached regarding the Milner Hall project, they instantly recommended Tempo PCE who they’d successfully worked with a number of times. THE SOLUTION Tempo PCE commonly chooses Limelite 7 for its projects; a Tarmac grout with hydraulic lime content that’s specially designed for heritage buildings, especially ancient structures such as churches. This was the ideal product to suit the needs of Milner Hall where the grout would need to be injected at a low pressure from the outside, directly filling the internal voids. Tom Phillips, Director of Tempo PCE, said: “We regularly use Limelite products and Limelite 7 was ideal for the work required at Milner Hall. The technical support they offer is incredibly valuable, as well as their reach and industry-reputation. “We strive to only work with manufacturers who can offer value and work with us as partners to ensure the best possible product is provided for a strong finish. We certainly get that with Tarmac’s Limelite team.” Iain Spence, Technical Manager for Tarmac’s Limelite range, added: “Historic structures often present suppliers with a wide number of challenges when it comes to the specification of suitable materials, and their subsequent installation. “In the case of the work at Milner Hall, the requirement was for a fluid, low strength grout that would stabilise the void in the masonry of this Grade II listed building. The Limelite Heritage Grout system provided a breathable low-density solution for these works. “Given the often delicate nature of period and historical structural repair projects, working with dedicated and knowledgeable contractors is essential to achieving the correct end result. Tempo PCE completed the works at Milner Hall utilising their extensive application skills with the Limelite Grout, delivering a much-needed structural support to the building’s foundations which should add many more years to its operational life.” 

This exclusive up-market housing development in rural Somerset, required surfacing for what would become an adopted residential road. Planning requirements specified that a sustainable form of drainage would be needed to gain planning consent. ULTIPOROUS, Tarmac’s durable porous asphalt was recommended. It would allow full infiltration of rainwater to eliminate puddles and standing water even after heavy rain. It would also achieve a safe, all-weather surface for residents and avoid surface run-off into the local catchment. The approach taken, meant that no drains or manholes were required, which is another advantage of using this product for architects and designers. It would also deliver lasting durability, helping to minimise future maintenance requirements.

The client, East Lindsay District Council, planned to build a brand new £7m state of the art Public Sector Hub facility in Horncastle, Lincolnshire to provide office space for the District Council, Boston College, along with Lincolnshire Police and local medical organisations. A sustainable approach was needed towards the construction of the large 220 space car park required to serve the new building to avoid surface run off and flood risk to the surrounding area.  Using Tarmac's ULTIPOROUS meant planning conditions and would keep the car park free from standing water, even after heavy rainfall. It also avoided the need for additional costly drainage systems and was far less labour intensive than alternatives like block paving, which helped saved time and cost for the client. The smooth, even finish also met the client’s requirement for a safe, low maintenance, all weather surface.

This new housing development in Leicestershire required porous, all-weather driveway surfacing for the new three, four and five bedroom homes that would manage rainwater and avoid local flooding. Tarmac's ULTIPOROUS provided the solution combining excellent drainage characteristics with proven long term durability and meeting local planning requirements and delivering a sustainable drainage solution.

This large car dealership in Dorset required a new car park surface for the external paved areas. Planning requirements meant that a porous system was required to enable sustainable drainage and avoid large scale run-off into the surrounding catchment. Using Tarmac's ULTISuDS porous asphalt sustainable drainage systems met the needs of the local planners by managing surface water and reducing direct surface water run-off, but also met the client’s requirement for a safe, accessible all-weather surface for their customers. By eliminating surface water, it also eliminates the problem ice patches that can occur in cold weather conditions. It would also be durable enough to cope with daily vehicle movement and static loading from cars that were on display. 

A new 4,000m2 staff car park was required for this large brewery in Monmouthshire. Sustainable water management was a key priority for the client. As a result they had specified full infiltration porous construction that would allow rainwater to soak into the pavement, before being slowly released into the ground. This would help to reduce the rapid runoff which can cause local drainage systems to be overloaded after heavy rainfall.The new ULTIPOROUS surface provided a safe, all-weather parking area which would avoid surface water after heavy rainfall and formation of ice during the winter. It also met the client’s sustainability requirements by helping to manage rainwater at source and control its release into the surrounding environment.

This large college needed to increase parking capacity for students and staff and commissioned a new 5,500m2 car park. Local planning guidelines encouraged a sustainable approach to drainage to avoid excessive run-off into the local catchment. It would be used throughout the year, so there was also a requirement to avoid standing water during heavy rain. As it would be in frequent use by large numbers of staff and students, the chosen surfacing needed to provide long term durability with minimal maintenance requirement.After discussions with the main contractor, Tarmac’s experienced team recommended ULTIPOROUS, their specialist porous asphalt car park surface. Using a modified binder and open aggregate structure, ULTIPOROUS combines excellent drainage characteristics with long term durability. It reduces direct surface water run-off to help meet planning requirements. It also eliminates the problem of both standing water after heavy rain and ice patches that can occur in cold weather conditions.

Project briefTarmac Building Products were asked to supply Queen Mary’s development (a historic London hospital converted into apartments) with Limelite Heritage Hydraulic Lime Mortars.The ProjectThe project ‘s aim is to convert Grade I Baroque stately home Roehampton House into residential use with a mix of old and modern construction materials. Roehampton House is a Grade I Baroque Stately Home built by Thomas Archer over the years 1710-12 and later enlarged by Sir Edwin Lutyens in 1910. The house is being carefully restored, maintaining its original features both internally and externally, with Doric columns and wrought iron railings giving way to panelled walls, ornate painted ceilings and black and white marble.Help from Tarmac Building Products – Limelite Heritage Lime MortarsWe supplied Limelite Heritage Hydraulic Lime Mortars in mobile dry silos to the large-scale heritage site in Roehampton, south-west London. The product is predominantly a bedding masonry mortar but due to its versatility, can be used in other areas and is ideal for projects such as this one because it is a cement-free traditional product and so recreates an appearance in keeping with the history of the building. It is being supplied alongside natural and Y101 white mortar in dry silos.Our Heritage Hydraulic Lime Mortar is ideal for projects such as this one because it is a cement-free traditional product and so recreates an appearance, maintaining the history of the building.Problems facedThe former hospital developed into a stately home is a Grade I listed building, meaning that any new building work needs to blend in well with the existing building work. Grade I buildings are of exceptional interest, sometimes considered to be internationally important; only 2.5% of listed buildings are Grade I.The project site is located within Flood Zone 1 and so a Flood Risk Assessment is required as the site is over 1 hectare. OutcomesRoehampton House, its two gate houses and the remainder of the Roehampton Estate are being redeveloped to provide luxury new housing. The development is called Queen Mary’s Place. Of the original 30 acres, only 14 remained following the building of the new hospital, but the developer, St. James has preserved 30% of the land for pleasure gardens for the new residents.The Grade II listed sunken and rose gardens have also been lovingly restored to provide the perfect setting for the newly created 1, 2 and 3 bedroom apartments and two 2 bedroom gate houses.·      Contractor: St James Development·      Location: Roehampton, London ·  Product: Limelite Heritage Lime Mortar

The Problem:Associated problems caused by damp and flooding are commonplace throughout the UK’s housing stock. Growth of black mould and efflorescence caused by salt transfer can lead to thedelamination of the plaster and there is no simple resolution. Often the only choice left to the housing association or local authority is to remove the original plaster and treat the walls with a Damp Proof Course (DPC), before waiting for it to dry to receive a backing plaster – all at the expense of the landlord or local authority.The Solution: A Modern, Lightweight Renovating Plaster:Limelite Renovating Plaster solves all of these problems. Firstly, it can be applied to damp walls, saving an enormous amount of money for time that would be otherwise spent waiting for the walls to dry out – it effectively controls dampness passing through walls, as well as providing a barrier against salt transfer – ultimately allowing the substrate to dry naturally. Secondly, and crucially, Limelite Renovating Plaster will withstand damp issues caused by future events, which may be likely in properties susceptible to damp and flooding.Thirdly the Limelite plaster system offers Thermal Insulation by drying the walls rapidly, reducing loss of heat and insulating the internal walls to meet modern day standardsThermal Conductivity, λ10,dry,mat, P=50% = 0.17W/m.KThermal Conductivity (k) at 0% moisture = 0.13W/m.KAnother benefit with Limelite plasters for internal use is their fire resistance/protection as a non-combustible product (as defined by BS476:Part 4) which can be assigned Class O in accordance with the requirements of the National Building Regulations and Reaction to Fire = Euroclass A1 Making the Difference for Local Authorities Dudley Council in the West Midlands is among the many local authorities that specify the use of Limelite Renovating Plaster when tackling such issues in social housing.“Where a renovating plaster is required we use the original and proven, Limelite” said Andy Pratt, Specification and Design Manager for Dudley Council, which has been specified by the council for over 40 years.Where existing plaster is sound, a small area of plaster is removed and replaced with Limelite.In more severe cases where the existing plaster is unsound, all plaster is removed and the wall is treated with a DPC before Limelite Renovating Plaster is applied. Limelite Renovating Plaster is also used for patch repairs in areas such as window reveals, where again the damaged plaster is removed and replaced with Limelite.A BBA Approved SystemLimelite Renovating Plaster is a BBA approved solution, when used as the backing plaster in a 2-part system, finished with our High Impact Finishing Plaster - a hard, durable finishing plaster that produces a Grade D impact resistant surface.

St Pancras StationProject briefLimelite Heritage Mortars and Grouts to help restore St Pancras station buildings to their Victorian splendour.The ProjectMortars and Grouts from Tarmac Building Products, the leading manufacturer of blended cementitious products in the UK, have been extensively used in the historic conservation of St Pancras station.The major redevelopment of St Pancras includes the enlargement and refurbishment of the ticket hall, restoration of St Pancras Chambers as well as new passages to the existing Tube ticket Hall and Channel Tunnel Rail Link. PAYE Stonework and Restoration, a leading conservation specialist turned to Pozament for its expertise in pre-blended products formulated specifically for historic conservation work.A hydraulic lime-based combination of materials that offers sympathetic controlled strength was blended by the team to meet the specific requirements of PAYE Stonework and Restoration.Help from Tarmac Building Products – Limelite Heritage Mortars & GroutsAround eight tonnes of lime based, cement-free materials including Heritage Mortar 4 and Heritage Grout 7 were supplied to point the brickwork joints of passages to the existing tube ticket hall and Channel Tunnel Rail Link and to repair sofits in the Grade I listed St Pancras Chambers.Problems facedSt. Pancras Station is a Grade I listed building, meaning it is a building of exceptional interest and is one of the best Victorian buildings in central London. It has been voted one of London’s favourite landmarks and so great care had to be taken with the restoration work.OutcomesThe extensive redevelopment of St Pancras and Kings Cross Underground was completed by the end of 2007.  QuotesGary Hodges, project manager, PAYE Stonework and Restoration said, the range of pre-blended heritage grouts and mortars were ideal for this restoration project. Heritage Mortar 4 was highly suitable for the St Pancras Chambers repairs, reaching maximum strength within 7 days rather than the usual 90 days for other materials.Stuart Allerton, Quality & Technical Services Manager, Tarmac Building Products said, The Limelite Heritage range has specifically been designed to be sympathetic with historic buildings and caters for a number of applications. Our re-pointing mortars and free-flowing grouts are manufactured at our Swadlincote facility in Derbyshire to order, typically within five working days.·      Location: London·      Product: Limelite Heritage Mortars and Grouts·      Timescale: Completed in 2007