SKG London | Sunflex Folding Sliding Doors (SF55)

Folding Sliding Doors

Our slim line folding door system provides one of the smallest profiles of any residential sliding folding doors on the market (only 55mm), it also boasts an unrivalled 24mm thermal break ensuring it exceeds current and future building regulations.

Due to its slim aluminium frame, contemporary architectural design and excellent thermal qualities our Sunflex SF55 folding sliding doors are the most popular system in our range. Why not visit our showroom to see why this folding door system is so popular.

Sunflex SF55 Folding Door Features

Minimal slim profile with excellent thermal properties
Flush track available ensuring level floor finish inside and out
Designed for more typical folding door openings up to 6 panels in any direction
Bottom running mechanism with ball bearing running carriages
Choice of 5 standard colours, large range of RAL colours available on request
Standard glass – 28mm double glazed units, 4mm toughened glass, soft coat, argon gas & warm edge spacer
Overall system U Value of 1.58 W/m2K

Specification

Dimensions

The SF55 aluminum folding door system is designed for more typical opening configurations with up to 6 panels in any one direction. We do not recommend panel widths exceed 1100mm and a maximum height of 2800mm.

folding doorOperating system

The SF55 is a bottom running folding sliding doors system, consisting of wheels which are manufactured from tough glass fibre reinforced polyamide set around a maintenance-free sealed bearing, giving quiet smooth operation.

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Track options

There are two choices of track on our aluminium folding door; a standard stepped track for a severe weather rated system or an aluminium flush track recessed into the floor. This provides a level walkthrough with an uninterrupted floor finish.Read More

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Furniture

Handles and hinges are made of cast alloy, and are available in a colour coded powder coated finish or brushed chrome. Flush sprung-loaded handles allow doors to stack without obstruction.Read More

Folding Door

Security

A high level of security is fitted to our doors as standard; including insurance backed multi locking system. Additional locking mechanisms can be added as additional extras.

folding sliding doors

Discreet finger safe gaskets

The gaskets (consisting of long-lasting EPDM) between the panels and side jambs are continuous and have a unique chamfered design. This means that they interlock and form a highly efficient double seal.

folding sliding pull handle

Pull handles

When the folding door system opens externally the intermediate panels are fitted with a moulded ‘D’ shaped handle, this sits neatly within the gasket line enabling easy closure of the panels against the compression top and bottom gasket seal.

title="trickle vents" alt="folding vents"

Ventilation

Trickle vents of either 2500mm2 or 5000mm2 can also be incorporated with the addition of a 40mm add-on head profile to satisfy building regulations. Read More


Pricing

We strongly believe folding sliding doors require specialist installation. We are frequently contacted by clients experiencing problems with there folding sliding doors installed incorrectly by builders or inexperienced glazing companies. For this reason we no longer provide folding door on a supply only basis, we feel that without control over the quality of the installation we are at risk of putting our company and our suppliers reputation at risk.

The prices below are meant as a guide only, for a more detailed quote please contact us or complete our online estimate form.

Example Prices

The below price includes; Site Survey, Standard Colour, Standard Specification, Installation and 5 year insurance backed guarantee*

Example 1 - 3000mm x 2100mm - 3 panels left - £3875.00 (excluding VAT)
Example 2 - 2800mm x 2700mm - 3 panels left - £4647.00 (excluding VAT)
Example 3 - 4100mm x 2300mm - 3 panels left, 1 panel right - £5190.00 (excluding VAT)
Example 4 - 5000mm x 2450mm - 5 panels right - £6258.00 (excluding VAT)

* Our standard installation area includes Greater London, Kent, Sussex, Surrey, Essex, Hertfordshire, pl us parts of Berkshire, Bucks, Hertfordshire and Hampshire. If you are unsure if your project falls within our standard installation area, please ask for further details.
Configuration

Capable of opening widths of up to 12 meters, with 6 panels in each direction. The Sunflex SF55 folding door system can open either to the inside or more popularly to the outside, with panels that can open to the left or right.

An odd number panel configuration will provide you with a single access or traffic door for daily use or with an even number of panels an opening first pair.

The movies below show how the different door configurations operate.

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No. of right folding panels
Opening In/Out
Demonstration
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Finishes

Sunflex folding sliding doors come in 5 colours, as standard these are; White (Ral Colour 9016), Silver Anodised, Silver (Ral Colour 9006), Grey (9007) and Anthracite Grey (7016).

All handles are specially designed to complement the folding door system and we include colour coded handles as standard. Gaskets are in Black, with hinges mounted within seal sightline available in black or white. A Marine environment finish that is required to all systems within 5000m of a shoreline is also available.

Other RAL colours (over 201 colours available). Even different colours to the inside and outside (dual colour) or different wood grain effects are available for a nominal charge. In addition you can specify whether a matt, semi gloss or gloss level of paint finish is required.
Glass

What is a U-Value

A U-value is the measurement of the amount of the rate of heat loss through a material. The value is calculated as heat lost per hour per square metre (W/m2K); a low U-value therefore indicates a more thermally efficient building material.

Document L (Document J in Scotland) is part of the Government’s Building Regulations. Revised October 2010, following the Regulatory Impact Assessment, which controls the acceptable U-value of your home – in general terms, an average U-value of 1.8W/m2K is now required.

All new housing and replacement doors and windows must comply with Document L (Document J in Scotland), unless specifically excluded. If you are planning any new building or renovation work, it is always advisable to contact your local planning office for advice on how the building regulations affect you and your project. Although SKG London can offer general help and assistance based on past experience, we are not an authority on the building regulations and are unable to offer professional advice.

Low ‘e’ (Emissivity) glass

Our standard quotation includes the application of low ‘e’ (emissivity) to the inside of the inner pane that reduces the amount of heat loss through the glass. In addition, an inert argon gas can be added to the cavity between the glass sheets, thereby reducing the u-value by a further 0.15W/m2K. A ‘soft coat’ low ‘e’ (emissivity) glass represents a revolutionary development in so far as improved thermal performance providing an environmentally friendly solution, given the lower CO2 emissions associated with reduced energy consumption and a considerable reduction in heating bills, when compared to the tradition ‘hard coat’ low ‘e’ glass.

Warm edge spacer

Our standard quotation also includes warm edge spacer. Up to 80% of energy loss through a window occurs due to the spacer bar being a conductive material, a warm edge spacer reduces these thermal heat losses which is good news to the environment and even better news to you, further benefits include up to 70% reduction in condensation and improved noise reduction.

Solar control or comfort glass

The sun can make glass roofs, conservatories or south facing elevations quite unbearable in the depths of the summer months like stepping into a greenhouse. A solar control glass is a glass with a special coating designed to reduce the amount of heat entering a building. It reflects and absorbs heat as well as filtering light for reduced glare. Using a solar control glass can reduce the need for air conditioning and blinds. Please ask for further details.

Toughened glass

We include as standard a double-glazed unit comprising of 4mm toughened glass complying with BS6206. The glass has been heat hardened (tempered), increasing its strength over ordinary annealed glass by up five times. There is also an added advantage that, should it break, it would shatter into hundreds of tiny non-sharp fragments.

Laminated glass

The benefit of laminated glass is that, if broken, the glass cracks while still remaining attached to the plastic interlayer rather than falling and possibly causing injury; it also provides secure protection from unwanted visitors. In addition, laminated glass reduces bleaching of carpets, curtains and furniture by reducing the amount of ultra-violet rays that penetrate the glass.

Improved visual qualities

Due to the heat-tempering process used, 4mm toughened glass can sometimes suffer a slight visual rippled distortion. Although this is acceptable under British Standards, using 6mm toughened glass helps to reduce this distortion or 6.4mm clear laminate will eliminate the distortion altogether.
Blinds

Blind image

All of our folding sliding doors systems are available with Pellini Integrated blinds as an optional extra. The blinds are installed within the cavity of the double glazed units therefore requiring no cleaning, the glass provides protection from damage and ensures they will always look like new. All of our blinds can be both raised and lowered for privacy and tilted to provide protection from the heat and the glare of the sun.

Advantages

Blinds are sealed in a vacum so they stay clean for life
Protection against damage by encapsulation
Maintenance free
No UV degradation
Improved solar control
12.5mm slat available in white, beige and silver as standard
Total privacy and light control for folding sliding doors

Manual System (Magnetic Control)

Designed with a rotational front magnetic control, for raising and tilting a blind integrated within a double-glazed unit. Raising and lowering is controlled using a continuous cord loop that drives the external magnet.

Electric System (Motorised)

Electric blinds that can be raised / lowered or tilted via a wall switch or remote control. The motorised venetian blind has an internal which incorporates a control unit allowing synchronized operation of groups of blinds

Solar Powered / Rechargeable System

A battery operated motorised blind system that can be raised / lowered or tilted via a remote control. The motor can also be powered without additional power through an external small and stylish SOLAR panel.
Our Service

As specialist folding door installers we have the experience, product knowledge and technical skills to ensure that your project runs smoothly and on schedule. We strongly believe that an important aspect to providing a high level of customer satisfaction is to minimise the number of different individuals you deal with throughout your order. On single and multi-orders you will be assigned a maximum of 2 contact people who will be assigned your contract and will assist you from initial estimate through to final installation and after sales.

Providing a quotation

We are able to provide a fast turnaround in preparing a quotation. For single and multi orders we will only require opening dimensions, these can be provided via our online estimate form, e-mail, telephone or fax.

We will provide you with the required technical information including detailed drawings of track, head and frame dimensions. We can arrange to visit you on site or you can visit our showroom to run through specification and the options available.

Contracts

Should our quotation be favorable we will need to arrange a site survey. During the survey we use laser-measuring equipment to take the necessary measurements required for manufacture, ideally both the building contractor and home-owner would be present. In most cases we will provide our contract and CAD drawings for your approval with 48 hrs. To order your folding sliding doors we require a 25% deposit and signed contract, an additional 65% is due 7 days prior to installation and the balance due on the final day of installation.

For extra piece of mind we include an insurance indemnity with all of our orders.

Installation

You will be contacted at least two weeks prior to installation. Our installation team are all employed by SKG London allowing us to fully guarantee the quality of their workmanship, with complete confidence. Once your folding sliding doors have been installed to your satisfaction and upon final payment, our engineers will explain the operating instructions, care and maintenance procedures, warranty and keys.

Guarantee

In the unlikely event that you encounter any problems with your installation, however small, we will always respond promptly and efficiently. Our insurance backed guarantee covers parts and labour for 5 years from installation date.

For clients who opt into our service plan we can extend the guarantee to 10 years. For as little as £20.00 per panel per year we will send an engineer to service the doors. Our service includes lubricating the running mechanisms, making any adjusting to the doors and testing the folding door hardware.
Downloads

Please find below full technical downloads for this system, if you require any additional information please do not hesitate to contact us on 0203 121 1000

Technical Manual

Technical Manual (PDF Format)
Technical Manual (DWG Format)

To download right click and select 'Download Linked File'