Building elements with frame extensions, fasteners and window profiles tested

Excellent results in terms of stability and density

Airtightness is crucial for low energy and passive building projects, both in new construction and renovation. Cold bridges must therefore be avoided at all times. Floor structures are also becoming higher and higher, and if windows are then integrated down to the floor, higher sill profiles must also be provided. With FrameTec from Stadur, you can perfectly meet the increasingly stringent thermal insulation requirements. 

Obviously, you want to meet these requirements in order to prevent thermal and cold bridges between windows and the building envelope for such things as frame widenings, the installation of shutter boxes, and the connection of window sashes. Recently, building elements with FrameTec frame extensions, fasteners from SFS and window profiles from Schüco and Veka were extensively tested in terms of stability.

Stadur (Hammah), one of the largest and most innovative manufacturers of sandwich panels in Europe, built a plant in Karstädt/Brandenburg in 2009, specifically equipped for the extrusion of plastic panels. Among other things, the high-performance plastic Stadurlon, a development in cooperation with BASF, is produced there. This plastic can be used at temperatures from -20° C to +120° C. This applies not only to FrameTec sandwich elements for the production of frame extensions to bridge gaps and pillars, but also for the assembly of shutter boxes. The connection of window boxes is coated on both sides with a coating from this Stadurlon. 

FrameTec

"FrameTec is available in different heights of up to 500 mm and in lengths of up to 7000 mm," states Marc Nickel, construction sales manager for Germany and Benelux at Stadur. "In addition to excellent thermal insulation, these developments offer many other advantages for the user. For example, the material absorbs almost no water (< 1.5 %) and is completely rot-free. The panels are also light, which improves handling, and can withstand loads up to more than 1000 kg/lm. They can be easily attached without special tools, pre-drilling or doweling."

"The outer layers are made of Stadurlon plastic, 2 mm thick, available in different white shades, and in between, in addition to extruded polystyrene foam, there is a special layer made of StadurFoam. We can also provide these solutions on request in a different thickness and with a different finish, for example with a wood decor. The StadurFoam layer can be variably positioned, allowing the assembly to be adapted for screwing on the different types of profile systems."

Certified Quality

The FrameTec sandwich elements are also characterized by a compressive strength of more than 1000 kg/lm, a flexural strength of more than 3.1 Mpa and an excellent pull-out value vertically up to 6310 N and horizontally up to 2815 N. This ensures a precise and flat connection for each profile. 

"We note that floor structures in buildings are increasingly higher and, as a result, in rooms where windows reach the floor, one must also install higher sill profiles. However, the connection of several profiles acts statically as a hinge. The Stadurlon FrameTec frame extensions provide a solution here," says John Thume, product manager FrameTec and ProfileTec at Stadur. 

"Architects, engineers and construction companies are increasingly asking for test results from independent laboratories or other bodies. In order to guarantee everyone maximum security in terms of stability, building elements with our FrameTec frame extensions, the screws and fixing brackets from SFS and the window profiles Living 82 from Schüco and Softline 82 from Veka were subjected to a series of tests. These elements were successfully tested according to ift standard MO-02/1 2015-06, ETB standard 1985-06 and DIN 4103-1:19840. Other tests, in turn, demonstrated excellent tightness with an air permeability class 4 according to DIN EN 12207 and a driving rain density class A9 according to DIN EN 12208."