sfk40 ¤ folding doors ¤ sunfold systems ltd. glazed folding and sliding door systems

folding doors

sft40 specification and details

SFT40 folding sliding doors create an open, flexible and modern space for both living and working environments. Due to the flush profiles and concealed hinges the SFT40 is an ideal solution for dividing garden rooms and conservatories from the main. Also suited for commercial situations including pavement cafés, restaurants, balconies and car showrooms.

The SFT40 system is our mid-range internal folding sliding door system offering a larger choice of options than the SFT30 system but a few less than the SFK50 system. Price-wise the SFT40 system sits between the SFK50 & SFT30 systems.

Dimensions

Panels up to 3000mm high can be hinged together in long 'trains' to open up 92% of an elevation. The maximum panel width is 1000mm (for heights up to 2400mm). Panel heights over 2400mm will require a horizontal transom in each panel for stability.

Security

Unique tamper proof hinges are concealed within the frame. Intermediate panel joints are held securely by internal shoot bolts operated from a thumb turn lock on an attractive grab handle. End pass doors are fitted with three point locks meeting the requirements of British standards for insurance purposes. Handles are available in either black or white.

Weather seals

Unique continuous vertical seals are concealed within the frame. In addition, rubber gaskets act in compression on the top and bottom tracks with an additional sweep strip to provide a weather rated panel system (to DIN18055).

Appearance

Adjustable aluminium frames can be coloured to suit your tastes. Standard finishes include silver anodised (EV1) and polyester powder coated white (RAL 9010 or 9016), cream (RAL 1013), dark green (RAL 6005), light grey (RAL 7040), dark grey (RAL 7016) and brown (RAL 8017). Wood-grain and stone effect foil finishes are also available upon request.
Click to see RAL colour chart
Click to see anodised finishes

Glazing

Sealed glazed units up to 24mm can be accommodated in the SFT40. Our standard comprises two panes of 4mm clear toughened glass with a 16mm cavity. The inner pane can be equipped with a thermally efficient Low E coating. Units are manufactured to BS6206a and BS5713. Many solar control and tinted glasses are also available.

Stacking / Folding

Panels can be stacked inside or outside of the room, to the left, right or split to stack on both sides. Where odd numbers of panels are used, the last panel in the 'train' is furnished as a secure pass door with lever handles both sides for daily use.

Suspension

Panels can be top hung or bottom rolling (floor supported). The stainless steel bottom track is recessed into the floor allowing an uninterrupted flush finish (and meets requirements of Document M). Die-cast aluminium carriages with 4 wheels contain self-lubricating protected ball bearings.

Ancillaries

Transom rails and solid (non-glazed) panels can be incorporated into your door design.

Ventilation

Ventilation can be offered in 2 ways;

In-glazed vents, which are situated above the glass at the head of the panel - see http://www.rwsimon.co.uk/airstrip_300.htm for further information.
Tilt turn panels are also available in inward opening 'trains' of panels. These do affect the appearance of the door set as there is a heavier sightline around the tilt turn panel.

Windows

We can offer tilt turn or fixed windows to complement our system.

Opening in tilt and turn windows offer multi-functional use through one single operating handle. When the handle is moved to the "tilt" position the vent opens in at the top allowing a source of ventilation. When the handle is moved to the "turn" position the window is hinged on either left or right and opens to the inside for an unobstructed view, complete ventilation & to make cleaning easy.

Tilt turn windows also comply with the Scottish Building regulations that state, "Any window or part of a window more than 4m above the adjacent ground should be constructed so that its internal and external glazed surfaces can be cleaned safely from inside the building".

Installation

We offer a full surveying and installation service nationwide. Our surveyors are qualified to discuss details of your building design, and our installers are all fully trained by us to the highest standards.