Façade solutions

ClickBrickHandling advice

Façade solutions 2

GeneralThe unique combination of design and function makes ClickBrick the most innovative brick for a beautiful and long-lasting façade! Designers are often looking for new materials to create a unique and aesthetically splendid appearance. At the same time building contractors consider it important to take the costs of material usage, handling, durability and maintenance into account.

ClickBrick bricks are perforated dry-stacked clay bricks that can be produced in a variety of colours and structures. The clean and dry-stacking system ensures that handling ClickBricks neither demands professional and technical knowledge nor requires special tools or additional treatments. Thanks to this continuously stacking technique, the system is completely circular.

Handling advice

DimensionsThe Wienerberger ClickBrick is a clay brick that is dry stacked together by means of clips. The bricks are manufactured in such way that when assembled into the wall, they fit into the modular gauge of the structure. The bricks are available in several standard types. On the upper and lower side of each brick is a groove. This groove is provided for the fastening of the clips. Over the height and on the header side of each brick there is a recess. This recess is provided for easy placing of wall ties. In addition to the whole brick units, there are also standard half-bricks, corner-bricks, lintel-bricks and window-edge bricks. The nominal sizes are given below:

Whole bricks 240 x 100 x 90 mm Half bricks 120 x 100 x 90 mm Corner bricks 210 x 100 x 90 mm Lintel bricks 240 x 100 x 90 mm Whole window-edge bricks 240 x 100 x 90 mm Half window-edge bricks 120 x 100 x 90 mm

Handling adviceClickBrick

Whole brick Half brick Whole window-edge brick Half window-edge brick

Corner brick Lintel brick

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The application of the ClickBrick system is suitable for buildings in which the facades have been designed for the modular dimensions of the ClickBrick system. It is important that the dimensions of the building are accurately set-out taking into consideration the modular size of the ClickBrick system. ClickBricks have very high and tight tolerances, namely 0.1 mm for the height, 1.5 mm for the length and 1.5 mm for the width of each brick. The system allows for some adjustments to make the head joints somewhat larger or smaller. Adjustment of the position of the outer leaf of the wall while placing wall ties is also possible. There is, however no allowance in the system, other than in the kicker layer, to adjust the height.

Handling advice ClickBrick

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The kicker course The Wienerberger ClickBrick system stands or falls on a good dimension set-out. Good setting-out is essential. Therefore, it is advised that particular attention is given in getting the kicker course laid correctly. By ensuring the kicker course is correctly set-out and laid will avoid dimension discrepancies in the height.

We recommend that the kicker course should be constructed from ClickBrick units laid in general purpose mortar. The kicker course should be allowed to harden over a period of at least one day before proceeding with the laying and stacking. The alignment of the face, side and top of each ClickBrick must be laid and checked for horizontal and vertical alignment and checked constantly with a level in order to ensure that the clips can be properly placed in the grooves.

Other situations where a kicker course layer is required may be on the construction of balconies, galleries or roofs. In a shell construction, dimensional discrepancies can occur that exceed the tolerances of the Wienerberger ClickBrick system. To compensate for these dimensional discrepancies, we recommend laying the first layer of ClickBrick bricks in mortar. This also enables you to incorporate water-resistant slabs or lead in this layer.

The clips

The connection clips between the ClickBricks are of stainless steel AISI 316 (A4) quality. The clips have a special grooved shape with a self-clamping mechanism, thereby holding the units together.

The connecting clips between each of the ClickBricks are also used to fix the wall ties to the bricks.

The clips are delivered as loose pieces and under normal circumstances 46 clips per square metre are required.

The clips need to be “clicked” fully into each brick, ensuring the clip is placed sufficiently deep in the grooves so that the bricks do not just rest on the clips.

Handling adviceClickBrick

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Stacking The ClickBricks are delivered in a manner that they can be taken and assembled directly from the pallet. Contrary to the clips used to fix the wall ties, the connection clips should each time be placed in the grooves on the spot of the vertical joints. The wall ties must be fixed exactly in the middle and on the top of the brick.

The ClickBrick wall should be stacked to a gauging string. Under normal circumstances (i.e., 4 ties per square metre), it will suffice to use a gauging string every five layers of bricks. By attaching the clip to the wall tie, the dry-stacked wall can be aligned to the gauging string.

Wall ties and plugs Different types of wall ties are used for different types of inner walls. The wall ties are divided into;

Profiled hammer-in wall ties, stainless steel AISI 316, ø4 mm: for massive. masonry supporting structures (inner leaf)

Profiled threaded wall ties stainless steel AISI 316, ø4 mm: for supporting structures made of wood, gypsum or aerated autoclaved concrete blocks.

“Eye wall tie”: to be used for steel sandwich elements supporting walls structures. Eye wall ties can also be used in narrow cavities such as are generally found ln certain types of timber framing.

When the ClickBrick system is used in combination with hard insulation materials, it is recommended that special plugs with insulation discs are used. This allows secure fixing of the insulation by tightening up of the disc without obstruction of the wall ties during stacking of the ClickBricks. These special plugs can be mounted through the insulation material. When soft insulation materials are used, it is best to use plugs with collars and separate insulation clamping discs.

To drill the hole for the plug and wall ties at the exact position it is best to use a template. This template ensures that the centre of the hole to be drilled ls exactly in line with the modular height (level) of the ClickBrick system. The template may be ordered along with the Wienerberger ClickBrick system.

Handling advice ClickBrick

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Position and affixing wall ties Once the bricks are stacked up to the correct height, the wall ties can then be placed. The wall ties should be affixed exactly in the middle and on top of the bricks

“Hammer-In” wall ties are driven into the plugs in the inner cavity wall using a hammer and ramming rod.

Profiled threaded wall ties are screwed rather than hammered into the inner leaf. These anchors are suitable for less hard supporting inner structures, such as timber and aerated concrete. A special shaped pipe is used to screw the wall ties in.

The pipe device to use for screwing the wall ties in, the ramming rod and the template can all be ordered along with the Wienerberger ClickBrick system.

Total number of wall tiesUnless otherwise specified there are four wall ties per square metre (every two stretchers and every five courses). In the case of smaller façade areas and piers, more wall ties may be required in which case standard industry rules for clay facing brickwork may be used.

It is important that wall ties are always placed in one of the glued or anchored layers at wall endings.

Handling adviceClickBrick

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Expansion joints ClickBrick façades must also be provided with expansion joints. The number and position of the expansion joints is determined according to the standards for clay brickwork. You can request advice about expansion joints from Wienerberger. Dutch CUR Recommendation 82 – Controlling Crack Creation in Stone Construction (Annex A2) – lists guidelines regarding expansion joints.

In principle, expansion joints should be 5 mm wide. This does not need to be added to the dimensions when setting out: It can be achieved by adjusting the position of the ClickBricks in the façade area. No connection clips should be placed in the expansion joints.

Physical building expansions can be made dovetailed. These dovetailed expansions should be affixed at least 1 metre away from a façade corner.

Lintel bricks

Lintel bricks are special ClickBricks (240 x 100 x 90 mm) that are delivered in pairs. On the upper side of the brick, there is a recess (standard 10 mm deep) that provides room for the lower edge of the lintel, the bedding strip and the gliding foil.

In connection with the Wienerberger ClickBrick system, often steel lintels are used to span over openings.

At the site of the bedding, the lintels are placed on steel bedding strips or a similar pressure-resistant bedding material. The basic starting point for the ClickBrick system is a bearing of 110 mm length. The steel bedding strip must be placed with a 10 mm offset from the edge of the face of the brick. A gliding foil must be provided over the full length of the lintel. The first two layers of ClickBricks above the lintel may, if necessary, be glued together for the stability of these layers.

Handling advice ClickBrick

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Wall mounting-clip Horizontal endings must be joined. This concerns the upper three layers under an opening in a façade on the spot of the eaves. Joining the three layers is done by using the wall mounting-clip. In order to place the stainless-steel clip, you must first mount a wall mounting-clip before the last three layers of ClickBrick bricks are placed. The wall mounting-clip goes through the perforations of the next layers of ClickBrick bricks. When it concerns the last layer, the wall mounting-clip should be clamped over the ClickBrick brick.

Handling adviceClickBrick

Wall mounting clip

Wienerberger BVHogeweg 955301 LK ZaltbommelP.O. Box 1445300AC ZaltbommelThe Netherlands

Tel.: +31 (0)88 - 118 51 11Fax: +31 (0)88 - 118 50 05Email: info.nl@wienerberger.com Internet: www.wienerberger.nl/gevel

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