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BT profiles can be plastered, wallpapered or painted
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. Stadur offers solutions, which perfectly meet the increasingly stringent thermal insulation requirements, to prevent thermal and cold bridges between windows and the building envelope in the case of Lift&Slide systems, tall windows and the installation of sills (ProfileTec) as well as in the case of frame widening, the installation of roller shutter boxes and the connection of window slats (FrameTec). Thanks to a special coating with fiberglass fabric (BT), the profiles can be plastered, wallpapered or painted directly.
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 ranging from -20° C to +120° C. This applies to the ProfileTec and FrameTec sandwich elements for the production of frame extensions to bridge gaps and pillars. But, also for the assembly of roller shutter boxes and the connection of window slats: these are coated on both sides with a coating from this Stadurlon.
While Stadurlon ProfileTec is an ideal solution for lift-slide systems, high windows (down to ground level) and sill mounting, Stadurlon FrameTec is used for frame widening, shutter box mounting and window box connection.
"Both products are available in different heights up to 500 mm and in lengths up to 7000 mm," says Marc Nickel, construction sales manager for Germany and Benelux at Stadur.
"In addition to excellent thermal insulation, these developments offer many other benefits to the user. For example, the material absorbs almost no water (< 1.5 %) and is completely rot-proof. The panels are also light, which improves handling. They can be easily attached without special tools, pre-drilling or doweling. The outer layers made of Stadurlon plastic, 2 mm thick, are available in different shades and in between, in addition to extruded polystyrene foam, there is a special layer made of StadurFoam. We can also supply 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."
Stadur continuously invests in these products, particularly in the development of optimizations and new solutions, but also in the testing of the materials, for example, to guarantee the market maximum certainty in terms of stability and tightness.
"Thus, building elements with our FrameTec frame extensions, window profiles, screws and fixing brackets 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.
In turn, other tests showed 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.
"These sandwich elements are characterized by a compressive strength of more than 1,000 kg/lm, a flexural strength of more than 3.1 Mpa and an excellent pull-out value vertically of up to 6310 N and horizontally of up to 2815 N. These ensure a precise and flush fit for any profile," says John Thume, product manager FrameTec and ProfileTec at Stadur.
"Both profiles can also be supplied in a special BT version, which can be plastered, wallpapered or painted directly. In fact, when the frame extensions and wall are finished in the same way all around, one creates a beautiful look. The FrameTec BT and ProfileTec BT profiles are coated with a fiberglass fabric with excellent values in terms of adhesion and tensile strength."
