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Case Studies

Maxmox Sloping Board spec speeds Protection of Semi-Basement to Somerset Home

An architect led refurbishment project on a private residential property near Exmoor has included the specification of cut-to-falls Marmox Multiboard (Sloping Board), chosen for the versatile product’s highly beneficial physical properties, together with the practical considerations to their inclusion.

The work on the home on the North Somerset coast, is being carried out by sector specialist builder and developer, NTG Property, while Peter Reid of P2 Design drew on his experience of using Marmox Multiboard, to address past problems, when faced by a semi-basement space whose concrete roof structure was leaking badly.  The original waterproofing membrane having cracked and deteriorated, with damp penetrating the habitable room below.

Peter Reid commented: “As a practice we work right across the UK and have used Multiboard on a wide range of past projects, for applications such as lining existing walls or upgrading floor constructions prior to installing underfloor heating.  It really is a very useful and adaptable product, ideal for refurbishment because of its thermal and waterproofing performance.

In this case there was a habitable semi-basement level where water had been getting in over a long period and causing damage and while it wasn’t designed under the Building Regulations but considered a repair of the existing, we went to Marmox to obtain calculations on the heat loss: to maximise the energy retention and avoid any risk of interstitial condensation forming within the new build-up.   And there was also the added bonus that utilising the tapered boards allowed us to speed construction and do away with one of the wet trades.  It has been a very successful application.”

With the 125mm concrete slab broken off the original beam-and-block roof structure and all the old phenolic foam insulation removed, the substrate was treated with a bitumen based, Alutrix, waterproof adhesive and the first of four layers of 20mm Multiboard bonded down.  Subsequent layers, including the cut-to-falls sections, were laid with staggered 10mm joints: the uppermost being sealed using Marmox Jointing Tape.  This was followed by the installation of stylish porcelain tiles with a waterproof grout detail to complete a classic, ‘inverted’ promenade deck or patio.  All of the Marmox Multiboards and Marmox Tape were supplied through Boyden Tiles in Croydon.

Marmox Multiboards are manufactured from extruded polystyrene or XPS and offer a range of positive physical characteristics in addition to being fully waterproof.  They are both light to handle and easy to cut, while still being able to sustain substantial loadings if required.  They further offer good thermal insulation performance, helping to cut condensation risk.

Multiboard Features in Midlands Mansion as Marble Backer-board

The redevelopment of a large residential property in Sutton Coldfield to create a £5million mansion is making use of Marmox Multiboard’s unique benefits, both inside and out, featuring within the pool/spa complex and then around a terraced patio area.

The six-bedroom home, close to the town’s famous park and golf course, has been extended to the rear and has had a third floor added during a year-long rebuild, creating additional bedrooms, living rooms and high specification recreational space.

As one of the specialist package contractors on the project, West Midlands based IMAC Joinery has installed more than 100 of the 600mm x 1250 Multiboards using the quick and reliable Marmox 60mm dowels.  The 10mm thick boards are held securely against the concrete blockwork, offering an ideal substrate for applying the marble tiles.  All of the boards, dowels and Marmox waterproof jointing tape were supplied by Galaxy Insulation and Dry Lining in West Thurrock.

Marmox Multiboards are manufactured from extruded polystyrene or XPS, faced on both sides with mesh reinforced, polymer cement mortar and offer a range of positive physical characteristics in addition to being fully waterproof.  They are both light to handle and easy to cut, while still being able to sustain substantial loadings if required and they further offer good thermal insulation performance, helping to cut condensation risk.surface across which to fix tiles, while they can be combined with the manufacturer’s multipurpose sealant to create fully waterproof wetroom installations.

The site foreman for IMAC Carpentry, Ian McLeod, commented: “Although we work right across the West Midlands and other parts of the country, we hadn’t previously used Marmox Multiboards when the tiler suggested them for a substrate board.  The distributor – Galaxy Insulation - has supplied us with the complete package including tape and fixing dowels. We’ve installed over 100 boards across the job and found them very straightforward to cut and fix.”

As well as being suitable as a tile backer, Multiboards also have very good load carrying capabilities and are regularly used as part of floor build-ups and for creating wet rooms.  And at a public swimming pool in Peterborough they were used to replace badly deteriorated ceiling panels high above the ground, where ease of installation and resistance to moist aggressive conditions were paramount.

Multiboard Picked for Penthouse Fit-out Atop Former London Sorting Office

The unique performance characteristics of Multiboard have seen the Marmox product selected as a tile-backer board for the fit-out of 11 penthouses which have been created as a new top floor to a major redevelopment of former Post Office premises in North London.

The high profile, high specification project is centred on the old Islington sorting office and is being led by sector specialist, Galliard Homes, while the renowned architectural practice, CZWG heads the design team.

While the majority of the development’s new luxury dwellings are being configured within the refurbished elevations of the old brick-built Edwardian property, the penthouses are contained in a steel framed structure positioned at the old roof level. An insulated timber frame with plywood sheathing then forms the individual penthouse apartments and room layouts.  

The Multiboards are in turn secured to the plywood substrate using the special Marmox plastic washers which avoid compromising the boards’ waterproof characteristics. The stylish interiors to the luxury bathrooms and en-suites are then finished by the specialist sub-contractor fitting ceramic tiles and elongated format grey slate tiles, secured in a half-bond pattern.    

The Logistics Foreman for Galliard, Szaboles Keszera, commented: “The finishes were specified by the interior design consultant with the Marmox Multiboards making a perfect surface for tiles and the natural stone tiles to be fixed against using standard tile cement.”  

Supplied to Galliard Homes for this project by Grafton Merchanting, Marmox Multiboards are produced in a range of sizes and thicknesses. They are manufactured from extruded polystyrene (XPS) covered in a layer of polymer concrete which offers an ideal surface across which to fix tiles, while they can be combined with the manufacturer’s multipurpose sealant to create fully waterproof wetroom installations.

This includes use across the floor and upstand areas to create a tanked interior which also offers excellent loadbearing capacity and whose thermal performance is even recognised by The Energy Saving Trust.

Multiboard Chosen for Waterproof Performance on Major Golf Course Development

A pair of large and visually striking new villas being built alongside a Scottish golf course, popular with transatlantic and other overseas visitors, are including the use of close to 700 sheets of Marmox Multiboard, selected for their waterproof performance and other physical characteristics, making them an ideal substrate for a tiled finish.

The multi-million project being carried out alongside the Renaissance Golf Club in North Berwick for a US client by Ogilvie Construction, is creating two very large and imposing properties offering a total of 17 bedrooms, as well as extensive self-catering facilities.

Located near the town of Dirleton, American and other golfers will be able to play the championship standard course, which is hosting this year’s prestigious ASI* Scottish Open, while staying in luxurious surroundings.   

While the two villas employ essentially traditional construction techniques, the internal fit out is making use of the well-proven Marmox Multiboards in combination with lightweight metal framing systems. Due to the layout of the bathrooms, the work requires just 140 of the largest 1200 x 2400mm Multiboards. However, SIG in Motherwell is also supplying some 550 of the 600 wide variants,including 300 at 1250mm in length, and another 250 that are 2500mm long.

The merchant has additionally supplied some 2,000 Marmox washers to hold the panels in place, as well as 200 rolls of the special self-adhesive Marmox tape used to seal the joints.

The site manager for Ogilvie Construction, Bob Robertson, commented: “The Marmox Multiboards are being used to line a total of 17 en-suite bathrooms within the two villas, having been specified by the architects in conjunction with the developer.  Although our company had not previously used Multiboard, our operatives have found them light and easy to handle, as well as to cut and fit.  They are using the special washers to secure them to the 70 mm C-stud partitions and 35mm steel sections acting as a wall-liner.

“While most of the Marmox is being covered with high quality marble tiles, some of the upper sections are being plastered: Multiboard also being ideal for taking render and plaster finishes.  It is all working out very well and we expect to complete on schedule in April.”

Marmox Multiboards are manufactured from extruded polystyrene or XPS and offer a range of positive physical characteristics in addition to being fully waterproof. They are both light to handle and easy to cut, while still being able to sustain substantial loadings if required and they further offer good thermal insulation performance, helping to cut condensation risk.

In recent times the boards have also featured in other domestic, commercial and educational projects across the country. They were even used to replace badly deteriorated ceiling panels high above a public swimming pool in Peterborough, where ease of installation and resistance to moist aggressive conditions were paramount.

* Aberdeen Standard Investments

Marmox Thermoblock Specified for Edinburgh Hotel Conversion

A former hotel in the Polwarth area of Scotland’s capital is the subject of a complex conversion and reconfiguration project, where Marmox Thermoblocks have been specified by the project consultants to address the critical floor/wall junction within the new extensions being constructed.

Edinburgh based architectural practice, Morgan McDonnell is renowned for both its new-build and refurbishment work across the city and ‘Old Town’. In the case of the Ettrick Hotel, its client – developer Northumberland Street Mews Ltd. Is creating 6 new residential units within the existing building plus a further 4 across the two extensions.

At the base of the new perimeter walls, the block-layers have used a total of 117 of the 140mm wide Thermoblock units each one 600mm long and 65mm high. In addition, the merchant stockist involved, St. Andrews Building and Timber also supplied a carton of 10 Marmox MSP 360 Sealant for the purpose of completing the stepped joints.

The Project Architect for Morgan McDonnell, Alice Hibberd commented: “We have specified Marmox Thermoblocks for other projects in the past and chose them in this case as part of our detailing to address the area where a thermal bridge might occur.”  

The site agent, Daren Colvin, confirmed: “We are using Thermoblocks in new external walls inner leaves at the ground floor slab level and also at parapet level. The blocks provide us with a simple effective means of forming thermal breaks.”

Each section of Thermoblock is comprised of ultra-high performance XPS insulation, encapsulating miniature columns of concrete, while the top and bottom are covered by alkali resistant glass-fibre mesh, retaining a surface of fibre reinforced polymer concrete to facilitate bonding.

The concrete columns have a very low conductivity so do not present thermal bridges themselves and when coupled with the highly insulating XPS insulation core, a combined thermal conductivity of 0.47W/mK is achieved.

Crucially, being able to employ a defined, very low thermal transmittance – derived by thermal modelling or measurement – offers a far more advantageous result than adopting the ‘default’ figure offered in SAP which can often result in non-compliance under the Building Regulations or the Building Standards for Scotland.

Thermoblock combats cold bridging for new leisure facilities at Fife holiday park

The construction of a new swimming pool and play park at a caravan and holiday lodge complex, set in a stunning location on the coast of Fife, is making full use of the unique insulating and load-carrying attributes offered by Marmox Thermoblock.

Clayton Caravan Park is a well-established destination, just minutes from the historic town of St. Andrews with its world famous St. Andrews Links golf courses, which also offers visitors views and fishing opportunities along the River Eden. The new facilities have been designed by Montgomery Forgan Associates from nearby Cupar, while Pert Bruce Construction of Montrose is the main contractor for the prestigious and challenging project.

With its fully enclosed and well insulated steel framed structure, the new swimming pool and play park will offer year round enjoyment for not only those staying in the caravans and lodge homes, but also the wider public. A key element to this energy saving design is preventing cold-bridging occurring around the perimeter to the building’s in-situ reinforced concrete floor where it meets the external walls, with its 140mm thick block inner leaf, infilling the cold-rolled steel columns.

The site agent for Pert Bruce Construction, Mark Macpherson, commented: “This is the first time I have seen the product, but the bricklayers found it quite straightforward to install and our company has also been using Thermoblock on a housing site in Brechin for Angus Council. While the 140mm wide units are being installed around the inner leaf of the building, the 100mm units form part of the perimeter wall to the pool both supporting the poolside slab and continuous with the insulation layer.”

Pert Bruce Construction is also making use of the Marmox MSP360 sealant as an adhesive to complete the stepped overlay joints between the individual Thermoblock units. The thermoblocks are available in widths of 100, 140 or 215mm and are formed from sections of XPS (extruded polystyrene) encapsulating two rows of high strength, epoxy concrete mini-columns. These are attached at either end to the top and bottom layers of glass-fibre reinforced polymer concrete, to ensure a good bond with the rest of the structure. Crucially, a variety of details have been thermally modelled by the BRE to provide insulation values for use in SAP or other calculations avoiding the punishing ‘default’ figure.

The Clayton’s Caravan contract has consumed 465 of the 140mm wide Thermoblocks plus a further 125 of the 100mm version. All of the Thermoblocks and Marmox Multipurpose adhesive were supplied through the Dundee branch of Minster Insulation.

Project Architect Joe Narsapur of Montgomery Forgan Associates explained: “We have been specifying Thermoblock for probably five years now in response to being asked to detail cold-bridging solutions where it is required by Building Standards councils in particular are asking for it. This is the first large project where we have seen the product used.

“Thermoblock was the first product we became aware of that offers the high load-carrying capabilities through the incorporation of miniature concrete columns within an insulation. I think it will get used more and more in the future.

Landmark Specification for Marmox Multiboard

An iconic residential development by Barratt London is including the use of Marmox Multiboard for its outstanding physical performance with two walls around the 20 metre swimming pool being lined with the moisture resistant backing board.

Landmark Place stands alongside the Tower of London, offering purchasers of the 165 luxury apartments and penthouses with stunning views of the Thames, Tower Bridge and the Southbank.

The ground floor pool and spa was fitted out by a specialist sub-contractor consuming close to 100 of the 2500 x 600mm Multiboards for the work, as well as six boxes of dowels to secure them and 30 rolls of Marmox Jointing Tape.

All of the materials are being supplied through a local branch of Jewson Builders Merchants Marmox Multiboards are manufactured from extruded polystyrene or XPS and offer a range of positive physical characteristics, including good thermal insulation, in addition to being fully waterproof.

They are both light to handle and easy to cut, while still being able to sustain substantial loadings if required, including as part of a floor build-up.

​Energy consultant selects Thermoblock for forever family home

When the founder of the Complete Energy Consultancy set about designing a brand new home for himself and his family, he identified Marmox Thermoblock as the ideal means of tackling thermal bridging around the floor/wall junction of the near-to-zero carbon construction solution.

Continue reading at Specification Online

 

 

 

​Local Charity Residents Given Level Access Showering Thanks to Marmox

As a manufacturer whose product range is synonymous with wet rooms and high specification bathrooms, Marmox has supplied ten of its specialist Showerstone level access trays for an apartment development in Newark. Consisting of 22 high specification dwellings for retirees on two floors where, on the ground floor the Marmox Showerstone trays were set within a screeded floor, while those upstairs have been installed into the timber joists to maintain level access. A spokesperson at Guy Taylor Associates added: “Sustainability was a major criterion from the start and the properties were designed with this in mind and have achieved high scores in rating systems such as the Code for Sustainable Homes, Housing Quality Indicators and Lifetime Homes. All units feature full disabled access as well as flexible living spaces which can be customised to suit the needs of individual occupants and specifying the Marmox level access shower trays matched in perfectly with the accessibility requirements.” 

​Marmox Soundboard supplied for stunning Aldgate apartment building

A development of 89 luxury apartments in one of the capital’s most fashionable districts is making full use of the acoustic and other performance benefits offered by Marmox SoundBoard, coupled with the manufacturer’s ubiquitous Multiboard product, in completing the floor construction.

The specification being employed for the 12-storey Ordnance Building in Dock Street, Aldgate, by Canbury Construction on site, features 12mm thick SoundBoard, covered by a 20mm thick layer of Multiboard. This high performance build-up has been installed over composite concrete structural floors and carries a finish of engineered oak in the living areas, while the bathrooms use just the SoundBoard and ceramic tiling.

An electric underfloor heating system is also being used to offer optimum comfort and efficiency for occupants of the luxury apartments.

Canbury Construction confirmed: “It was the decision of our in-house M&E consultant, to specify Marmox SoundBoard and Multiboard for the floor build-up in order to achieve the necessary sound insulation between levels. The boards have been installed by the tiling contractor and the flooring sub-contractor, Everest Flooring, using Mapei adhesive. While in the living rooms the 12mm SoundBoard is covered by 20mm thick Multiboards, in the bathrooms the tanking for the ceramic tiling is installed direct on the SoundBoard. It’s the first time we have used Marmox but the work has gone well and the operatives have found the boards very easy to cut and lay.”

Canbury Construction has been kept supplied with thousands of square metres of both board types through one of Marmox’s many stockists in the south-east, while the manufacturer’s technical department has provided both design input and on-site toolbox talks in order to train up staff previously unfamiliar with the products.

Marmox SoundBoard, like its sister product, Multiboard, features a totally waterproof core of extruded polystyrene (XPS) sandwiched between layers of glass-fibre reinforced polymer concrete, offering both thermal insulation with a conductivity of 0.035 W/mK and high compressive strength.

​Local Charity Residents Given Level Access Showering Thanks to Marmox

As a manufacturer whose product range is synonymous with wet rooms and high specification bathrooms, Marmox has supplied ten of its specialist Showerstone level access trays for an apartment development in Newark. Consisting of 22 high specification dwellings for retirees on two floors where, on the ground floor the Marmox Showerstone trays were set within a screeded floor, while those upstairs have been installed into the timber joists to maintain level access. A spokesperson at Guy Taylor Associates added: “Sustainability was a major criterion from the start and the properties were designed with this in mind and have achieved high scores in rating systems such as the Code for Sustainable Homes, Housing Quality Indicators and Lifetime Homes. All units feature full disabled access as well as flexible living spaces which can be customised to suit the needs of individual occupants and specifying the Marmox level access shower trays matched in perfectly with the accessibility requirements.” 

​Marmox Thermoblock Tackles Thermal Bridging Around Harrogate Home's Basement Structure

Some 180 Marmox Thermoblocks have been supplied to a regional builder for the construction of a high specification home near Harrogate, with their unique combination of insulating and load-carrying properties being used to tackle cold bridging where the two storeys above ground meet the basement structure which contains a swimming pool and other recreation areas. 
The five bedroom property has been built by Dobson Construction with a beam and block ground floor being supported off the in-situ concrete basement walls. The partially filled external wall of dense concrete blockwork, with an outer leaf of quarried stone, was then raised on the continuous course of Thermoblocks. 

The 65mm x 215mm x 600mm Thermoblocks were supplied through a local stockist and have been laid on a mortar bed with the special Marmox Multibond adhesive being used to seal the stepped joints between the units. 

The Site Manager for Dobson Construction recounted: “The use of the Thermoblocks was specified by our project architect to tackle the issue of perimeter heat loss, around the perimeter of the basement and also at ground floor level, on top of the concrete wall. Our bricklayers carried out the work, using the Marmox adhesive and the installation went without any problems whatsoever.”

As a loadbearing composite product Thermoblock has been developed to be incorporated into various wall constructions as a horizontal layer, equivalent to a course of bricks, in order to address a critical area of heat loss, thereby reducing energy bills and making a significant 

​Marmox Multiboard Warms Rutland Cottage

During the purchase of a delightful cottage in a rural location in Rutland the new owner noticed that the property seemed extremely cold. The main reasons appeared to be the fact that his new home had concrete flooring on the ground floor and solid exterior walls of concrete blocks faced with local stone throughout. To overcome the problem he decided to line the floor and walls with some form of insulation that was effective yet quick and simple to install. After considering the options available he decided that Marmox Multiboard fitted the bill on both counts.

Multiboard is manufactured from extruded polystyrene with both faces of the board covered with close woven fibreglass mesh embedded in a cement polymer mortar. This creates a board that is lightweight yet extremely strong with a high degree of thermal insulation [a conductivity of 0.027 watt/mK for the technically minded] and is totally impervious to any water penetration from outside. This Marmox product is also simple to fix to solid or stud walls being easy to handle due to its light weight and simply cut or sawn to the size required using conventional tools. In the Rutland cottage, 50mm Multiboard was laid on the concrete slab floors. On top was placed a 12mm ply layer and then low level underfloor heating before a surface layer of stone tiles in keeping with the house’s appearance. In the ceiling of the ground floor 10mm Multiboard was applied between the joists. Then, with the floors completed, all the outside walls were insulated internally with 20mm thick Multiboard.

The owner carried out much of the renovation work himself and was delighted with how easy and fast it was to install the Marmox boards. Now all the insulation work is complete he is also impressed with the much improved warmth in his cottage, particularly during the recent cold snap.

​Marmox Multiboard In The Shangri-La Hotel Bathrooms

The Marmox Multiboard, a product supplied by Marmox (UK) Ltd. has been installed in one of the world’s most opulent and exclusive hotels, the Five Star Hotel situated in The Shard, the tallest building in Western Europe with a crystalline façade.

W.B. Simpson and Sons, a specialist Tiling Contractor Company established in 1833, which supplies hard wall and floor tiling in commercial, industrial and leisure projects, specified the Marmox Multiboard to be installed in the two hundred luxuriously appointed bathrooms on floors 34 to 52 of The Shard.

The Marmox Multiboard is the perfect solution for insulating and waterproofing in one operation. Manufactured from extruded polystyrene it is fully waterproof and each face of the Multiboard is covered with a close woven fiberglass mesh embedded in a cement polymer mortar with a special finish unique to Marmox.

The Multiboard thicknesses of 10mm to 60mm were chosen by Simpson and Sons to create the vanity portals, which house single or double wash-basins. These boards also offer a high thermal insulation and are ready to receive plaster or tile finish. In this case the Multiboard panels have been finished with decorative marble tiles in keeping with the overall luxurious décor.

 

More case studies

Local Charity Residents given Level Access Showering thanks to Marmox

Marmox Multiboard Specified for Mixed Tenure Development in Islington

Marmox Multiboard facilitates fit out of Queenshurst Apartments

Blockley Brick Manufacturer uses Marmox Boards to Speed Production Cycle

Marmox Multiboard Pivotal to Grosvenor Place Project

Marmox Showerlay360 Drain Enables Most Versatile Floor Level Shower Available

Marmox Thermoblock Separates Surrey House from its Super Basement

Thermoblock Protects Floor Junction in Low Energy Flat Development

Multiboard feature in Goodenough bathroom contract

Multiboard in Peterborough Pool

Heraklith panels help restore a post war church

Soundboard in Kensington Apartment Building

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