The interesting fact about these doors is that balcony was required to make rails which were over 10 meters in length in one unit so as to maintain a continuous frame around the opening. This required some modification of the standard door system but the results are marvellous.

The curved doors replaced a facetted system originally designed. The curves complement the property and have allowed larger spans of glass than any facetted option could have allowed.

The curved doors were RAL powder coated and the curved glass used was 28mm Low-E double glazing with safety glass on both sides.

Also incorporated into the first floor doors were two sets of curved Juliet Balconies to protect the users from a fall when the doors are open.

It is important to note and be prepared for the following when dealing with curved balustrades:

1. On some radii the removal of the glazing bead from the handrail is not possible and the balustrade will need to be installed with the top glazing bead in place. This may require an adaption to the standard installation procedure to accommodate for this; this procedure can be obtained from us upon request.
2. On the handrail the glazing gap may become smaller than on straight runs and a smaller glazing rubber may need to be supplied, it may also become necessary as part of the changed procedure to remove the external fixed rubber and replace it with a different kind that can be inserted line the internal rubber.
3. It is important to realize that the tolerance on curved toughened glass is great and the curved glass panels will have “straight” ends of approximately 100mm on each side. This will be more noticeable on small radii. Curved glass may therefore require more manipulation, experience and patience in installation.
4. It is important to note that all bending of profile sections is performed after any anodizing or painting process, therefore surface cracking, whether visible or not, will always be present on curved sections, stretch marks may also be present and will depend on tightness of the radius. These cracking and stretch marks in addition to any other results from the bending are not considered defects.
5. Manufacturing limitations with respect to curved glass and balustrades exist and on occasion new limitations are realized that were previously unbeknownst.

We have been researching this area for almost two years and at present a new line is being constructed at the factory:

A patented system

A new and patented system using a specially constructed chamber using CVD (Chemical Vapor Deposition – where a chemical coating is applied in a closed chamber by vaporizing it). This special chamber or room measuring 4.0m X 4.0m X 3.0m in height is almost completed and will be tested and licensed in the next month.

A significant value

We believe that this new coating system to the glass offers a significant VALUE with an easy-to-clean feature, more like the Teflon® concept on a cooking pan, plus all other benefits of our coating such as:

• added brilliance
• impact and scratch resistance

As we have realized through our research we do not believe in the concept of SELF-CLEANING as it is clearly misleading and unrealistic and its marketing has been actually a failure.

There’s no such thing as truly  self-cleaning since the required “sheeting effect” of the hydrophilic (water attracting) coatings, as opposed to the “hydrophobic” (water repellent) coatings, works under a completely controlled environment and not as such in real life applications when you have the different variables of precipitation intensity and gravity, sunlight effects, etc.

Used  by advanced glass companies

This coating system is already in use by some of the most advanced glass companies in Europe and has been used on some large projects;

• Barcelona convention center (Spain)
• New York 40 Bond st project (USA)
• Montreal convention center (Canada)
• Guadalajara shopping center (Mexico)

Not a traditional CVD

An important point on the CVD chamber process is that it is NOT a traditional CVD (Chemical Vapor Deposition) as it does NOT require Vacuum, which makes it that much more efficient and cost-effective. Our system then has:

• NO vacuum
• NO curing time (the reaction is instantaneous, under 2 seconds)
• NO special cleaning other than removing grease or oily residues
• A coating on BOTH sides of the glass at the same process!

More for our customers money

This is a significant investment for the company but we believe that this aligns with giving the customer more for their money and the reduced cleaning requirement is “greener” in the fact that less chemicals will need to be used in the cleaning process.

Challenging is the only way to describe the project undertaken by Princeton Homes at Bowden Hill, Lacock, Wiltshire. The brief was to build a high–spec detached home on a plot previously occupied by an old four bedroom house which had been extended at different times in a mixture of stone, brick and block. The old house was to be demolished and replaced with a timber-framed property, constructed using eco-friendly technology and the latest materials acceptable to planners in a conservation area. The client wanted the property to make the most of the spectacular 180° views over the Wiltshire countryside. On a clear day you can see as far as Bath and the Mendip Hills to the South and Wales in the West, so Andrew Turner, Owner and Managing Director of Princeton Homes, drew up a concept design.

Looking over the National Trust village of Lacock

The design called for a lot of glass – never popular with Conservation Officers in planning offices. Although the property is in open countryside, with only one near neighbour, it is in a conservation area. The land in front belongs to The National Trust and the house overlooks the National Trust village of Lacock; all factors to be considered when applying for planning permission. After several months permission was granted to build a traditional stone front with slate roof, and to the rear an ultra-modern expanse of glass, with four curved patio doors and two curved Juliette balconies from Balcony Systems, set into a stone faced timber frame construction.

Combining the traditional with the sustainable

Once the concept design was approved Andrew had detailed plans drawn up by an architect (who?). The project was given the go-ahead and work commenced in March 2009. It was recently completed in March 2010. The finished design is complex as it makes use of both traditional building methods and the latest energy saving techniques. Rainwater harvesting, solar panels and air-source heat pumps have to fit comfortably with both traditional and the modern. The curves of the patio doors have to blend into the square slate roof.

Balcony’s curved patio doors are a key feature of the build. Two are set on the ground floor in the living room/kitchen and the snug, and two are upstairs in the master bedroom and second bedroom where they transform the rooms with the changing light and panoramic view. The Juliette balconies are installed on the first floor doors for safety when the doors are open.

Stunning curved patio doors

When it came to choosing the stunning curved patio doors Andrew turned to the internet. He asked for quotes from eight companies, but Balcony was the only one to respond, presumably because of the complexity of the project. Impressed by Balcony’s response as well as their products, Andrew Turner visited Effi Wolff, Managing Director of Balcony, and with his help ordered two curved 10 metre and two curved 5.8 metre VisioGlide 100 patio doors, with two Juliette balconies for the bedrooms (see the technical panel for details). The handrails are in Balcony’s own Royal Chrome anodised aluminium. The doors are 28mm double-glazed toughened Low-E glass, with a high weather rating (essential in an exposed location), their energy efficiency fitting in well with the eco-friendly ethos of the project. The living room/kitchen door has six curved panels, four sliding and two fixed, while each of the others has two sliding and two fixed curved panels. Specially made for this project, the order was delivered on time and fitted in alignment with the required time table.

Rising to the challenge of a complex project

VBS Ltd, Balcony’s sister company specialising in balcony and balustrade glass installations for large projects, fitted the curved patio doors and Juliette balconies. As it was a complex project – “a leap of faith for all parties” as Andrew puts it – an engineer from Balcony was on hand to advise on the installation. The timber frame company Allwood Buildings Ltd was extremely helpful, cutting and fitting the necessary steelwork into the wooden frame. The roofers, A L King, also rose to the challenge, bringing together the curves of the patio doors with the square traditional slate roof. Although the architectural features made the installation more complicated than usual Balcony products are designed to be easy to install. Everything went smoothly and Andrew is delighted with the end result.

Curved patio doors for clear uninterrupted views

The curved patio doors allow uninterrupted panoramic views from the house. They make a stunning statement from outside and inside the home. The curved Juliette balconies fitted on the first floor mean that the patio doors in the bedrooms can be opened and the views enjoyed in safety. The minimal hand rail, with glass reaching from top to bottom and no clamps between panes mean there is nothing to distract the eye. Both floors of the property benefit and the overall effect is one of original use of light and space. Careful planning and co-operation between the contractors and Balcony meant the project came in within budget and on schedule. The property is valued at around £1.5 million.

1930s style

Nigel was initially attracted by Balcony’s stunning curved windows and curved patio doors. “They were the only company to offer exactly what we were looking for”, he says. “I wanted curves, in keeping with the 1930s style of the building and its setting on the coast.”

In the end Nigel ordered two sets of curved patio doors, two sets of curved windows, curved curtain walling and curved balustrades. The patio doors are fitted in the living room and dining room on the ground floor, with the curved windows going in the master bedroom and bedroom three.

Excellent service

Nigel appreciated the excellent service from Balcony: “My architect and I could tell from the website we were ordering a high quality product, but we didn’t know what service to expect. Balcony’s regular phone calls and a site visit meant the local builder I used had no difficulty with the installation and the house was completed in fifteen months.”

Nigel is delighted with the end result. Pleased that the products lived up to his expectations, he will recommend Balcony and will use them again for future developments.

Balcony’s Juliettes give homeowners the opportunity to install a patio or French door above the ground floor to create a clear view from the home in complete safety. The all-weather glass balustrades can be installed around the home, in the home or in the garden to enclose a paved patio or decking area, even in exposed and coastal areas. Available in brushed chrome or bronze and with no clamps between each pane of glass to distract the eye and minimal hand rail, these modern products add style and class to properties and are a popular choice for homeowners, architects and developers.

Balcony’s curved windows and doors take property transformation to another level. The doors and windows add a really high-end, classy look to buildings. Available in two, three, four or six panels in various sliding or fixed combinations, architects describe this stunning range as ‘breathtaking’.

Managing Director Effi Wolff comments: “We’re looking forward to exhibiting again at such a prestigious event and welcome visitors to our stand. Grand Designs Live has been very successful for us in the past. It’s a great opportunity to reach our key target audiences and for them to experience first hand the quality of our products and what they achieve for buildings.”

The exhibition takes place at EXCEL London from 1^st to 9^th May. Visit Balcony on Stand B124.

It seems since the decline of new housing projects that public doing up their own house rather than moving has created a demand in the market for innovative door solutions.

It looks like architects have taken a particular liking to  the curved patio doors that Balcony supply.  Balcony’s managing director comments that Balcony have been thoroughly promoting the curved glass doors product in over thirty consumer and proffesional shows and exibitions over the last seven years. This, he continues, has been a key factor in getting the architects, specifiers and designers to learn about the availability of curved glass doors. Coupled with the affordability of Balcony’s glass doors this he believes has created this surge in interest.

In 2009 Balcony had an increase in sales of curved doors and forcasts a further 30% increase this year.

Curved glass sliding patio doors are available in many options of sliding and fixed combinations with virtually no limit on radii.