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EXTERNAL ENVELOPE
splashing, and generous overhangs are also recommended to both protect the top edge of the render and prevent staining. To help keep the finish looking fresh for longer, consider extending eaves and window sills to address water run-off. Ashlars, raised bands, string courses, keystones, quoins and plinths can all be created through the use of thick coat render systems or by building up or cutting back insulation to create these embellishments.
Considerations It’s always a good idea to remain sympathetic to surroundings and location. For example, developments in coastal regions are at much greater risk of exposure to aggressive weather than inland regions. Applying render can help protect and decorate buildings in these highly exposed areas.
Properties in areas close to busy roads will suffer from the effects of traffic pollution, which can leave a dark residue or cause discolouration on external surfaces. To stop the pollution penetrating the facade, a protective coating could be used to create an additional barrier. Using a highly hydrophobic coating protects
render from water ingress, oil and graffiti, as well as dirt, stains and other atmospheric contaminants.
Adding this type of coating does not affect the original appearance of the render and still allows the substrate to breathe. It simply helps to keep render looking better for longer.
Try before you buy
Envisaging how your building will look can be a difficult task, especially when you consider other external features such as doors and windows. Designers and applicators can use a colour facade simulator, such as the one we offer, which is able to show customers exactly how different renders and decorative finishes would look on their building by uploading a photo of the property or using one of the templates.
Specifying a rendered facade enables architects to achieve design goals, enhance visual appeal, and address practical considerations in a cost-effective and versatile manner.
Elissa Turnbull is product marketing manager at Saint-Gobain Weber
WWW.ARCHITECTSDATAFILE.CO.UK
ADF JANUARY 2024
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