- The SF55s slimline frame is an award winning door – winning the Build It magazine award for ‘Best Glazed Door’.
- 55mm front to back creating a wider opening than other bifold doors.
- Maximise your opening with the incredibly slim and neatest stack of bifold doors on the market.
- This system accommodates a glazing unit of 28mm, 30mm or 36mm.
Integrated ventilation option with a full height tilt and turn window within the bifold doors. This enables generous ventilation without having to open the doors and also offers another exit point at the opposite end to where the doors open.
Double glazed U-value for overall frame and glass from 1.6W/m2K.
Triple glazed U-value for overall frame and glass from 1.2W/m2K.
Maximise your opening with panel widths up to 1200mm and 3500mm maximum panel height for narrower panels. A sliding post can be introduced at the running carriage position to offer greater balance to the doors in extreme situations.
Acoustic performance tested at Rw=36dB. Further upgrades available.
Choice of 3 thresholds
Weathered track with double rebates offering peace of mind even in the most exposed of locations. One of the only bifold doors that can offer a double rebates on the bottom track which is why we achieve enviable weather test results ensuring that the outside is kept outside. On outward opening doors the internal finished floor can be level with the top of the track and then the step down to the outside can be as small as 3cm.
Low level track with single rebate low level Doc M compliant track recessed in to the floor with a single rebate. The floor on the inside and outside can be at the same level with the track in the middle sloping up only 14mm. This provides a single rebate for the doors to close tight against which is more weather tight than the flush track.
Non weathered flush track, Doc M compliant track recessed in to the floor with no rebates. Using a twin brush pile and a nylon strip for a virtually seamless connection between inside and outside. Whilst this is a very subtle detail it is recommended for a sheltered area only as there is not a continuous seal and reduces the weather rating with no guarantee against wind and water ingress which is a compromise for this contemporary look. A slope away or drainage channel is then recommended on the outside to prevent any water ever pooling up against this track.
A sill section with varying projection options can be used below any of these tracks. Please see downloads for the section details.