Category Archives: Cladding & Insulation

Early specification provides time savings with Knauf AQUAPANEL® Exterior

 Knauf Aquapanel

Early specification of Knauf AQUAPANEL® Exterior at the design stage of a 60-bed care home in Winnersh has provided both speed and cost savings for specialist care home developers Castleoak Group.

By utilising the lightweight performance of the Knauf AQUAPANEL® Exterior panels, compared to brick and block construction, designers were able to reduce the size and weight requirements of the foundations. 

Castleoak turned to Knauf to create an imaginative faceted façade in Winnersh near Wokingham for care operator Abbeyfield.

The Abbeyfield Winnersh care home is formed of four striking circular clusters that create a unique community to deliver innovative dementia care. Knauf AQUAPANEL® Exterior cement boards were used as a substitute façade system to brick and completed with a rendered finish.

Castleoak deployed lean construction techniques to optimise the build process. Work began on site in March 2015 and was completed in April 2016.

Facing cost pressure and difficulty securing brick and block supplies, Castleoak Operations Director Neil Robins and his colleagues were charged with designing a build strategy without the use of brick.

 “With inhouse timber frame design and manufacturing, Castleoak was able to offer our customer a really innovative build solution,” Neil said.

“The design was challenging, but we weren’t daunted. We knew we had to try something different.”

“Our solution was to prefabricate all panels, floors cassettes, and for the first time, apply external render panels at the Castleoak factory for this build. This strategy offered a great quality solution – and enabled us to better control the build programme with less dependency on subcontractors.”

The decision to use Knauf AQUAPANEL® was made easier due to its characteristics as a directly applied render carrier board.  The cement board combines the benefits of brick and block and, because it consists of aggregated Portland cement with coated glass fibre mesh embedded in the back and front surfaces, provides the ideal key for render.

Knauf AQUAPANEL® was introduced very early in the design stage allowing for further time saving.  Knauf’s Specification Team assisted at the design stage where the decision was made to assemble much of the external façade system offsite. Exterior panels were constructed at the Castleoak factory before being delivered to site to be installed by Sequoia Joinery.

Morgan Palmer, Operations Manager at Castleoak was satisfied with the performance of the Knauf products on the Abbeyfield Winnersh project.

“The installation of the Knauf AQUAPANEL® Exterior panels went to plan. The design and materials were well specified and performed. The programme remained on track.”

Knauf AQUAPANEL® Exterior is ideal for offsite installation. Factory fitting, transport and site installation has no adverse effect on its final performance.

Rigorously tested and certified by the BBA for use as a ventilated exterior wall panel system on timber frame and steel frame buildings, Knauf AQUAPANEL® Exterior provides a solid, dry base that can withstand the extreme weathering effects of wind, rain and snow.  It is also ideal for creating exterior soffits and the illusion of an internal ceiling continuing through the façade to the outside of the building.

www.knauf.co.uk

External wood solution for all needs

OrganoWood® is the latest name in sustainable wood protection and is building a reputation amongst architects, professionals and end users as the external wood treatment of choice for a number of different applications.

Offering three leading products – OrganoWood® 01 Protection, OrganoWood® 02 Repellent and OrganoWood® 03 Cleaner – OrganoWood has developed a product for all exterior wood requirement. Providing a high quality alternative the chemical pressure treatments, OrganoWood is favoured by those who are discouraged by using chemicals for either sustainable or applications reasons, such as environments where there the wood has a close contact to children, animals or vegetation.

eco friendly wood protection

“We are thrilled that OrganoWood is being used by so many different users, for so many different applications,” comments Steve Grimwood, Managing Director at OrganoWood UK. “It’s widespread application and ability to protect exterior wood in all environments is without doubt one of its best features. We hope that users continue to find new uses for the solution.”

The external protection and aesthetic qualities delivered through the OrganoWood range makes it an ideal solution for wooden cladding. OrganoWood® Protection 01 provides an unrivalled natural protection against fire and rot decay with OrgnanoWood® 02 repelling water and rot from taking hold in the material – essential to ensure long lasting building integrity.

OrganoWood is often specified to meet the high performance requirements for wooden decking, promenades and jetties. As well as providing water and rot resistance, OrganoWood® 02 Repellent hardens the wooden surface, making it less likely to split or crack. Through its proprietary technology, which mimics the natural fossilisation process, OrganoWood smoothens the surface, ensuring the decking the safe to walk on barefoot.

Organowood

Providing high quality protection without the use of toxic chemicals or heavy metals, OrganoWood is the ideal solution to use on external wood in environments with close contact to children and animals. Requiring little or no maintenance for up to five years, OrganoWood is favoured by those who work on schools, leisure facilities, agricultural buildings, playgrounds, and in public spaces.

wood protection

wood protection

Finally, as well as providing unrivalled eco-friendly protection, OrganoWood allows the timber to age gracefully – gradually enhancing the aesthetics to a silvery-grey hue over time. In particular, this makes it a popular choice for external garden fences and furniture, such as benches, tables and wooden planters.

Manufactured in Sweden, OrganoWood has employed some of nature’s own tricks to develop lasting, effective and unique wood protection that is entirely non-toxic – without the use of harmful heavy metals, biocides and solvents. OrganoWood products are classed as a Good Environmental Choice by the Swedish Society for Nature Conservation and are verified by FSC® (FSC-C120532) and PEFC™ (05-35-168), achieving the highest ecological standards.

For stockists and more information on OrganoWood®, please call 01296 323770 or visit www.organowood.co.uk  

ROCKWOOL reaches new heights in Manchester’s skyline

ROCKWOOL insulation has been specified and installed on a landmark project in the centre of Manchester, providing two new tower blocks with a façade system that ticks all the boxes: fire prevention, thermal insulation and an aesthetically pleasing external appearance.

The Cambridge Street development includes two and three bedroom apartments, built to alleviate Manchester’s growing population. Originally a vacant brownfield site, the project will provide 282 residential flats in a highly accessible location within Manchester’s City Centre.

Although the location is one of the development’s biggest selling points, it presented a challenge for the construction teams. As well as abiding to the local surroundings, the contractor required an insulation solution that complied with all building regulations, including a U-value of 0.18 W/m²K, and would withstand external elements to ensure a quick and undisruptive installation phase.  The materials also had to conform or exceed the regulation for limited combustibility defined in section B4 of Approved Document B External Fire Spread.

Due to ROCKWOOL RAINSCREEN DUO SLAB® being approved by the Local Authority Building Control (LABC) as an acceptable solution for projects above 18 meters, Manchester-based building contractor, Renaker Build specified 13,000m2 of 125mm RAINSCREEN DUO SLAB®.

“As a project manager, I have to make many decisions each day, but specifying RAINSCREEN DUO SLAB® for this project was one of the easiest decisions I had to make,” comments Pete Cregeen of Renaker Build.  “We had a strict technical specification to meet, which RAINSCREEN DUO SLAB® effortlessly achieved. I am most impressed with the company’s streamline route to fire compliance with Approved Document B and fire safe solutions for high rise buildings over 18m. In comparison to other insulation solutions, there was no alternative.”

As a fibre based product, RAINSCREEN DUO SLAB® can be amalgamated to slot into very tight spaces, leaving no empty gaps and achieving optimum thermal performance. It features a dual density insulation board that incorporates a robust outer surface and a resilient inner face. By compressing the primary fleece onto the top 50mm of the insulation, the product can be used, unprotected, in conditions of severe climatic exposure, including strong wind and rain, as experienced at high altitudes. In addition, the RAINSCREEN DUO SLAB® requires fewer fittings compared to other standard stone wool slabs, minimising installation time.

“We are delighted with the ease of installation and the speed at which we could erect the building’s rainscreen,” comments Pete. “ROCKWOOL goes beyond supplying the product and provided fantastic support. Designated technicians were regularly on site during the planning stages and are readily available throughout the installation phase to ensure satisfactory product installation. This additional service provides invaluable support for our men during construction.”

Based in the city centre of Manchester, the final appearance of the building was crucial in the design and specification stage. ROCKWOOL insulation can be easily rendered to accommodate the project’s strict aesthetic requirements using a wide range of available aesthetic tissue faces.

www.rockwool.co.uk

The Future House

This is how Scadinavian design looks like. This family home is a perfect combination of energy efficiency, sustainability, comfort and design. Developed by Ovaform Arkitekterne, the “future house” combines natural materials to get the highest efficiency.

Cupaclad

The natural slate rainscreen cladding system named CUPACLAD® has an extremely low heat transfer coefficient, and in combination with an insulation layer, means less heat loss overall from the structure.

Future House

CUPACLAD® solutions are lightweight, easy to install and they help to create a modern building appearance. In new constructions and in renovation works, CUPACLAD® slate cladding systems can be adapted to every architectural design.

cupaclad

rainscreen cladding

The use of highly durable tectonic slate, new fixing systems and rainscreen cladding efficiency make CUPACLAD® a competitive, totally sustainable alternative for cladding any type of facade.

green building

sustainable building

www.cupapizarras.com/uk/rainscreen-cladding

Email: uk@cupapizarras.com

Phone: +44 (0) 1312 253 111

Reynaers brings seafront splendour to Jersey Esplanade

The largest single office development in the Channel Islands utilises multiple aluminium glazing systems from leading provider Reynaers.

Reynaers brings seafront splendour to Jersey Esplanade

Extending to over 200,000 sq ft, Jersey Esplanade contains large, open plan office spaces across six storeys which surround a central atrium and circulation core. Maximising the coastal location, this allows breath-taking panoramic views of St Aubins Bay and creates a striking new gateway to St Helier.

The BREEAM-rated building combines modulated stone cladding with expansive areas of Reynaers aluminium curtain walling and is occupied by blue-chip brands such as Royal Bank of Canada, Deloitte and C5 Alliance.

Reynaers brings seafront splendour to Jersey Esplanade

Architects at Axis Mason have created a modern, innovative co-working space that facilitates collaboration with its open layout. The project is otherwise known as Gaspé House, a name selected to mark cultural links between Jersey and Canada and remember the Jersey fishermen who settled in Gaspé, Quebec, many years ago.

Transforming the Jersey seafront with a touch of splendour, the Reynaers systems utilised include CW 86 and CW 50 curtain walling, as well as CS 68 and CS 77 aluminium windows and doors.

Dave Rees, Consult Project Manager at Reynaers, said: “The conditions of the building location on this development proved a challenge. With seafront projects, timing is everything. Unitised facades therefore provided the perfect solution for Jersey Esplanade due to their speed of build and increased fabricator efficiency, with no compromise on performance or aesthetic quality”.

Reynaers brings seafront splendour to Jersey Esplanade

With high execution speed and available in two glazing variants, elements of curtain walling system CW 86 can be pre-assembled in the workshop to decrease time on the building site. Cassettes can then be hooked onto a traditional stick structure or the façade can be built up element by element according to the modular curtain wall principle.

Rebecca Cope, Marketing Manager at Reynaers, said: “Reynaers prides itself on developing, where required, bespoke solutions to meet all glazing requirements. For Jersey Esplanade, efficient CW 86 unitised facades and CW 50 curtain walling gave the architects design freedom to accommodate large glazed areas, as well as meeting their time constraints.

“The project also spectacularly showcases our CS 68 and CS 77 aluminium windows and doors, helping the build to achieve its BREEAM status with their excellent performance credentials and sustainability benefits.”

Project address: 66-72 Esplanade, St. Helier, JE2 3QA

Fabricator: Deepdale Solutions

Architect: Axis Mason

Contractor: Dandara

Products:

www.reynaers.co.uk

 

Wood for life – why exterior wood products are here to stay

When Gordon Aitken first considered cladding his family home in 2006, he longed for a natural wood finish on his home’s exterior but imagined that he’d be forever maintaining, coating and touching up the façade of his house near Glenrothes in Scotland.

Accoya

10 years later and Gordon has been pleasantly surprised. After choosing to use ACCOYA®, a modified wood, Gordon hasn’t once had to scale a ladder or coat his home’s cladding with tins of lacquer in a full decade, proving how resilient the wood is.

Gordon’s home was the world’s first ever property to be clad with ACCOYA – a virtually rot proof, non-toxic and highly durable natural wood product with a 50 year above ground guarantee. Finished ten years ago and setting a new benchmark for long lasting exterior wood products, this use of ACCOYA has changed the perception of how wood can be used for residential projects.

Bricks and mortar are the mainstays of UK house building. They cope reasonably well with driving rain, gusting winds and freezing temperatures, which unfortunately we’re all so used to. Wood, albeit attractive, natural and environmentally friendly, has for a long time been considered an inferior material, prone to shrinking, warping and rotting. However, things are changing.

Accoya

After 90 years of wood science, the process of transforming softwoods into products mirroring the resilience of tropical hardwoods has recently become widely available. The process is known as acetylation. Acetylation alters the wood’s chemical structure making it practically impermeable to water and therefore not vulnerable to swelling or shrinkage.

ACCOYA’s sister product, MEDITE® TRICOYA® Extreme, made from the same process is an extremely durable wood-based panel, offering the design flexibility of MDF with the resilience of hardwood. It has been described as “absolutely unique” and one of the greatest advances in board products in the last 10 years.

Both products have won a host of awards from environmental bodies around the world, demonstrating the products’ commitment to sustainable building and design.

Wood’s popularity amongst home owners is certainly on the up, and with products such as ACCOYA and MEDITE TRICOYA EXTREME making real waves, it seems logical that this upward trend is here to last.

Inspired by design? Visit Accoya’s new blog to view a selection of project stories.

ROCKWOOL helps deliver energy efficient homes at Silken Park

STONE WOOL INSULATION

Residents of a new housing development in Dublin are enjoying increased levels of thermal comfort, and reduced heat loss after ROCKWOOL® insulation was installed on the external envelope. Showcasing the latest design features and a high standard of specification, the development will provide attractive low-energy housing for its residents.

Silken Park, a Durkan Residential housing development, features a combination of two, three and four bed houses. Every part of the development was carefully considered to reduce energy use and to make the houses comfortable and healthy to live in. The construction and the design teams were tasked with creating a cost effective building envelope that delivered efficient fabric performance and excellent overall thermal performance.

As the main contractor on this project, Ecofix Ltd adopted the ‘fabric-first’ approach to the construction to build a well-insulated and airtight building.  Key to this approach is the use of an external wall insulation system that completely wraps the houses and therefore minimises thermal bridging.

Specifically designed to meet high thermal standards, ROCKWOOL® External Wall DD Slab, ROCKWOOL’s BrickShield® and ROCKWOOL REDArt® Silicone render systems were the perfect solution for this project.

Developed in a partnership between ROCKWOOL and Ibstock, the BrickShield® system was used to provide a real brick finish on the external wall insulation. ROCKWOOL insulation boards were fixed using an adhesive around the perimeter of each piece of insulation as well as mechanically fixed with thermally-broken Insulating wall anchors.

Offering triple value, the ROCKWOOL REDArt® Silicone EWI System is renowned for its thermal performance, fire protection and provides an attractive exterior for projects. The REDArt® rendering solution has been developed to be installed on a wide range of substrates and wall construction types. This has provided Silken Park with an efficient thermal solution to minimise the resident’s heating requirements and provide high standards of thermal comfort.

“ROCKWOOL is our first choice of insulation because it is breathable and fire proof” says Jay Stuart, Technical Director, Ecofix UK and Ireland. “The particular product that ROCKWOOL provided us with to build these houses is dual density. This means it is impact resistant on the outside, and slightly softer on the inside where it is fitted against the masonry wall. This means that the slab compresses and fills all the unevenness on the masonry wall achieving a perfect fit of insulation. In addition, the technical support ROCKWOOL provided was second to none which helped in the delivery of the project on time.”

ROCKWOOL’s thermally engineered and environmentally-friendly solution has helped to provide energy efficiency and reduced heating consumption.  The building fabric has exceptionally low heat loss which is in line with design predictions and will provide the residents with increased levels of thermal comfort in a cost-effective manner.

“Durkan Residential is seeing savings of approximately 10% in the external walls themselves” said Andrew Kinnear, Commercial Director at Durkan Residential. “We are seeing a faster build, which is reducing our time on site.”

For more information and to view the Silken Park video, visit www.rockwool.co.uk or https://www.youtube.com/watch?v=QxdZirkiBJ0 for YouTube.

Cembrit Launches Windstopper Extreme in a Blaze of Glory

Windstopper

Cembrit, the leading roofing and cladding specialist, is pleased to announce the UK launch of Windstopper Extreme – a new sheathing board that is ideal for a range of uses on UK construction projects. To coincide with the launch, Cembrit tested the board to BS EN 1634-1:2015 / BS 476:22 at the Building Research Establishment (BRE). Cembrit is delighted to report Windstopper Extreme passed the test achieving a one hour fire rating.

Cembrit Windstopper

A sheathing board such as Windstopper Extreme is typically installed behind decorative rainscreen cladding to effectively ‘seal’ the internal environment of a building. It is an excellent alternative to cement particle board and has, following the successful fire test, proven fire resistance. Simon Mayes, National Sales Manager, Cladding and Building Boards, for Cembrit is sure that the architects, specifiers and contractors will appreciate the wide range of benefits that Windstopper Extreme offers: ‘The performance and versatility of Windstopper Extreme make it a noteworthy entrant onto the UK cladding and building board scene. We were already aware of its excellent qualities as a first class sheathing board and to add the one hour fire test on top of that extends the board’s appeal and application potential.’

Building Regulations and other documentation require building structural elements to provide minimum periods of fire resistance, usually expressed in minutes, which are generally based on the occupancy and size of the building. BS EN 1634-1:2015 / BS 476:22 determines the fire resistance of non-loadbearing elements, such as sheathing boards, of a building construction when subjected to certain heating and pressure conditions. When subjected to a 60 minute fire test, Windstopper Extreme passed with flying colours.

Cembrit Windstopper Extreme acts as a windproof membrane for exterior walls that can absorb and release moisture without affecting the durability, strength or performance of the board. This very low vapour transmission resistance, enables moisture generated inside a building to pass through to the outside. Insulation can be placed directly against the inner side of the board which is also resistant toward both rot and fungal growth. The Scandinavian heritage of Windstopper Extreme also ensures it can withstand considerable fluctuations in weather and climatic conditions.

For further information visit www.cembrit.co.uk, email info@cembrit.co.uk or tel: +44 (0)20 8301 8900.

Accoya® cladding scores full marks at performing arts school

  • High performing school choses Accoya for cladding
  • Impressive sustainability credentials and BREEAM rating key to specification
  • Over 1200m2 of Accoya used throughout project in SE England

Accoya®, the world-leading modified wood, has been used to clad a new creative centre at one of the UK’s highest performing schools.

Pipers Corner School, an independent day school in High Wycombe, Buckinghamshire, chose to clad its new Performing Arts Centre with wire brushed Accoya to give the new building a striking, textured finish.

Achieving a 100 per cent pass rate at A Level in 2016, Pipers Corner School’s new performing arts wing will play host to the artistic expression of its cohort, aged between 4 and 18.

Over 1200m2 of Accoya cladding, soffits and trims were used throughout the project for phase 1 of the build, with the wood supplied by Accoya distributor James Latham.

Designed by Nichols Brown Webber Architects and Landscape Planners, Accoya was chosen due to its Class 1 durability and low maintenance upkeep. The final cladding was factory coated using Teknos to provide an impressive, uniformed finish.

Accoya Acetylated Wood

Aside from its aesthetic appeal, Accoya was also used due to its sustainability credentials as the building has been targeted to achieve a BREEAM ‘very good’ rating.

Manufactured by Accsys Technologies, Accoya is produced using a proprietary acetylation process, creating a modified wood product which exceeds the high-quality and aesthetic attributes of tropical hardwoods.

Laura Keily, Head of Marketing at Accsys Technologies, said: “By choosing Accoya to clad its new performing arts wing, the school has really invested in the future of the new building, and ensuring that it remains fit for purpose for many years to come. Accoya, although regarded as a premium product, can be very cost effective, especially in its raw form. It also has the huge advantage to customers of being low maintenance, exceptionally stable and long-lasting with an above-ground guarantee of 50 years.”

Richard Mosson, Group Cladding and Decking Manager at ‎James Latham Ltd, commented: “The new performing arts centre needed to be built to last decades and remain in good condition with relatively low upkeep, so Accoya was the obvious choice. The cladding provides an impressive, striking finish to the new building.”

Accoya has proven popular with architects and joiners across the world, especially where quality, stability and aesthetics are important. Compared to competitor wood products, the use of Accoya has been proved to reduce shrinkage and swelling by at least 75%.

Offering exceptional durability and stability, Accoya is an attractive wood product which is perfect for a variety of uses from windows and doors to external cladding, structural projects and decking.  Accoya also boasts excellent environmental credentials by using wood sourced from FSC® certified, sustainable forests and Cradle to Cradle Gold certified.

https://www.accoya.com

Cavity Trays latest building envelope solutions at the Scotland Build Show 2016

The only cavity tray company in the UK awarded European Technical Approval and the longest-established in its specialised filed is displaying its latest products at the Scotland Build Show 2016.

Cavity Trays of Yeovil has a history dating back to the 1920’s and its approved products are accompanied with a performance warranty.

Its know-how and expertise derived over almost a century is available for the benefit of Architect, Builder and Client and its latest handbook is being distributed from the stand.

The Type X cavitray for gable abutments provides a swift and effective way of arresting and controlling rain penetrating masonry above a sloping abutment.

Trays are available to suit all styles and sizes of masonry from brick to block to stone.

Each approved Type X cavitray has a ready-shaped flashing already attached, and an adjustable back upstand that now extends to cover an even wider range of cavity widths, ensuring compatibility at all times.

The Type BWVC

Type BWVC Bay Window Vertical Cavitray links lintel with the higher level roof DPC/tray and prevents damp horizontal transference between the two.
Type BWVC Bay Window Vertical Cavitray links lintel with the higher level roof DPC/tray and prevents damp horizontal transference between the two.

The full name of this new product is the Bay Window Vertical Cavitray and it overcomes a problem experienced by many during the 2013/2014 wet winter: lateral transference.

Lateral transference or ‘sideways soak’ as it is often termed, refers to exterior skin masonry becoming saturated and then permitting saturation to permeate ‘sideways’ into the structure.

It can occur to the sides of a bay window between bay roof intersection level and the lower level where the lintel runs across the bay to support the wall above.

The Type BWVC cleverly links the two whilst maintaining masonry bonding and coursing.

Its presence halts horizontal wet permeation.

This product is compatible for use with other approved cavitrays for horizontal and sloping roofs.

Preformed damp courses and trays

A range of preformed damp courses and trays for use with timber frame construction demonstrate the benefits of building using pre-shaped damp-protection solutions rather than relying on site forming and fabrication.

Pre-shaped extends the protective qualities beyond just one face of the element requiring protection, guarding against misplacement and ensuring every touch-point is both uniformly and consistently addressed.

One of over 120 designs of preformed cavitray available to suit timber construction. This model provides the requisite damp protection requirements as well as extending through the cavity and across the oversite so the arrangement protects against rising gases such as radon.
One of over 120 designs of preformed cavitray available to suit timber construction. This model provides the requisite damp protection requirements as well as extending through the cavity and across the oversite so the arrangement protects against rising gases such as radon.

 

Caviclosers

The designer now has a wider choice of caviclosers capable of reveal closing cavity widths up to 240mm wide.

The latest models include new fire-rated models that are immediately identifiable by a red prefix, eg: Cavi 60.

This signifies the cavicloser has a sixty minutes fire integrity rating.

The range extends from one hour to four hours (Cavi 240).

The Specifier is able to instantly identify and select a model with the requisite protection and cavity width qualities.

The Type RFC  – Reveal Face Closer

A reveal face closer that permits full fill insulation to be continued unpunctuated to the reveal face.

It provides a novel way of eliminating the need for separate insulating elements being required within a fully insulated cavity wall that is able to meet the thermal requirements demanded.

The Type RFC (Reveal Face Closer) may be used to close compliant cavity walls with cavity widths from 50mm to 150mm.

Visit Cavity Trays on Stand E19.
Scotland Build 2016 – 23rd & 24th November 2016

http://www.cavitytrays.co.uk