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Load Bearing Shelf Angles & Extreme StoneClip Uni-Strut
StoneClip Installation
Instructions Mechanical
Cladding Fixing
Methods |
Fixing Methods Open Joint: Using set clips this is 5mm (see drawing 1). This is the diameter of the connecting pin. When using adjustable this is 6, 8, 10 or 12mm corresponding to threaded shaft. Closed Joint: This is what is referred to when the panels of stone are laid with no joint. The Adjustable StoneClips have shafts ranging from 6mm to 12mm thick. It is better when installing them to make the incision in the underside of the panel being installed and when positioning the StoneClip in place on the top of the panel being installed, to leave 2.5mm clearance between the underside of the shaft and top of the panel. If the rebate you make in the top panel is oversized, it is recommended that you put a small amount of 24hr epoxy in this rebate when you are fixing it into place. This, when cured, ensures that the weight of the panel is carried on the shaft of the StoneClip and not the panel below. This same principal applies to whatever joint you desire - use a spacer and then epoxy to carry the load and also repair the cut-out in the back on the panel, which may weaken the panel fixing if over-cut too much.
* The two optional fixing points on the left and right hand side of the clip sometimes have to be fixed at a slight upward angle. This may be when substrate is suspect.
Drawing 6 If pins finish in this position when installing and adjusting, you must fix to substrate with 2 fixings to maintain position of clip and load distribution. If panels are resting on connecting shafts of the StoneClips used, they are in effect, only carrying the weight of the panel directly above and this is divided by the two clips/panel. This can vary from:
These are shear loads
and are for voids up to 12mm from substrate. Where voids are
widened up to 30mm it is advised to open gaps from 1mm up to
3mm and refer to engineers detail for clip size.
These can be left open for circulation and movement of air around panels or can be silicone jointed (normally to a depth of 5mm). It is recommended that every 3000mm of floor height of next lift that you have an 8mm joint between levels. This allows for all movement that may occur on face of external or floors internally. The kerfs that are cut in the panels are always cut in the middle of the panel edge (eg, 15mm in, in case of 30mm thick panels). This hangs all panel in neutral pressure on the fixings. Make all cuts from the front face, except in the case of rock or split faced stone. This ensure all front faces are aligned right and only required the panel to be plumbed in position as installing. Aim to use a diamond blade that cuts a kerf that is around 2.2mm wide. This allows room to install front disc of StoneClip with only a 0.3mm gap for movement in the kerf. This is important to have to counter twists that may, and probably will occur in panels from 30mm down. (petrographics of stone) The silicone that you inject into the top cut on the panels firms up after 12 hours. When working with the movement of the panel, it can been seen that by doing this, it fixes the top turning point of the panel and allows the bottom to move in the kerf. When you are using the StoneClips as intermediates, having the bottom course ready to take the course stone above, you will notice that there is very slight movement there until the next panel above is fitted into place. This is not there when you use the top and bottom clips (see Drawing 7 on right). DISCLAIMER: The StoneClips must be installed along the lines of the Engineers Detail, including the installation of angle restraints at each lift level and the use of the right fixing restraints. |
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© 2007 StoneClip |
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