Browse Forums General Discussion 1 Mar 29, 2009 8:19 pm We are looking at doing a stepped quioning with shadow lines to our two front piers that you see on many Georgian houses. The builder is recommending fixing lightweight polystyrene-cement mouldings and rendering over the top of it to give it the same finish as the rest of our render. Although this would give the effect we are looking for, I am concerned that they will move or expand/shrink over time causing the render to develop visible cracks. Has anyone had experience in constructing this way? I know the moulds are screwed and fixed with polyurethane sealant however we want the fascade to stand the test of time, well at least for a decade or two anyway Re: Rendering over lightweight poly mouldings? 2Apr 05, 2009 5:08 am Mr Ed We are looking at doing a stepped quioning with shadow lines to our two front piers that you see on many Georgian houses. The builder is recommending fixing lightweight polystyrene-cement mouldings and rendering over the top of it to give it the same finish as the rest of our render. Although this would give the effect we are looking for, I am concerned that they will move or expand/shrink over time causing the render to develop visible cracks. Has anyone had experience in constructing this way? I know the moulds are screwed and fixed with polyurethane sealant however we want the fascade to stand the test of time, well at least for a decade or two anyway Use acrylic render rather than cement render. There are companies that will supply, fix and render the polysteyrene. Masterwall and Unitex spring to mind. JB yep you need a joint, foam is easiest, will look fine once rendered with a joint. 2 5233 Is it possible to render an old corrugated iron shed.I have heard that it can be done if it is covered with chicken wire first.Not sure of the ratio of the render mix and… 0 4896 Dear Members I have to decide the Facade column size. My custom builder standard is 350mm with rendering, but i asked for 470mm plus stone or tiles and yet to get… 0 7496 |