Friday, April 22, 2011

TYROLEAN RENDER

WBS Tyrolean is a cementitious cement based render incorporating silicone technology.
Applied using a hand operated or open-hopper spraying machine, the unique ‘honeycomb’ texture is built up using several strokes from different angles until a finished thickness of 4mm – 6mm is achieved.

The substrate must possess suction capabilities for the tyrolean finish to achieve the desired effect.

Hardwearing & weatherproof, therefore highly suitable for coastal, suburban and rural environments.

Plastering Advice & Tips - Creating a Tyrolean Finish

What Is A Tyrolean Finish In Plastering Terms?

Tyrolean finish is an exterior rough finish whose name originates from the traditional alpine building process and gives a weathered look to walls. Tyrolean is a traditional finish in the UK and is available in different colors. If applied properly, tyrolean finishes resist cracking unlike plaster and cement finishes. Tyrolean finishes resist rain and snow and provides some insulation for both temperature and sound.

Tyrolean finishes are applied on top of a rendered wall. If a tyrolean finish is desired on top of a brick or block work wall, render must be applied first and allowed to cure for at least four days prior to tyrolean finish coat.

Tools Needed To Apply Tyrolean Finish to Rendering

Tyrolean finish can be purchased as a dry mixture needing only water to prepare for application.

The main tool for tyrolean application is the tyrolean flicker gun hand tool. This tool consists of a reservoir, a hand crank attached to a spindle with comb like wires and a tension bar to adjust the amount of splatter. Other than the flicker gun, the only tools required for applying a tyrolean finish are a bucket and a trowel or stick for mixing and, if necessary, a ladder or scaffold. The flicker gun tool uses the wires to scoop the material and flick it in splotches onto the wall surface. It is possible to hire the tool daily or weekly however, the tool itself is not that expensive to purchase.

Tyrolean finish is applied in thin layers and usually requires 4-6 coats. Tyrolean mixture should be a slurry consistency thin enough to flick but thick enough not to slide off the wall. The tyrolean mixture should be mixed in a bucket and kept nearby for refilling the flicker gun tool. It is extremely important to remix prior to refilling the tool. It is helpful to refill approximately the same amount into the flicker tool each time in order to keep the application even.

How To Apply The Tyrolean Finish To Plastering / Rendering

Once the wall is prepared, through a thorough cleaning and repairing any cracks, the tyrolean mixture can be applied to the wall. While keeping the flicker tool square to the wall and approximately 250 mm from the wall, turn the hand crank with a steady motion and work slowly and consistently across the wall surface. In order to keep the layer a consistent thickness, keep the gun at the same angle, move at a consistent speed and turn the hand crank at a steady rate. A good pattern for application is to work from the top left to right then down and back to the left. Although arm fatigue is an issue with the hand crank, it is important to work with a wet edge; if the edge dries, a noticeable line may be present in the finish.

It is a good idea to practice first if this is your first attempt at using the tyrolean flicker tool. Once the first layer begins to set, apply the next layer. Repeat the process until there are 4-6 thin coats.

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