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Flintstone
Cheer up duck
Discuss Tile backer board under the shower tray or upto the tray? And shower tray installation method? in the Tanking and Wetrooms area at TilersForums.com.
Fit the backer boards after fitting the tray. This, when boarded and tiled, will make the tray look nice amd low. You can fit most trays with tile adhesive ( I do) powdered flexi. Put silicone on the edges that go against the wall. Make sure you prime the floor and back of tray. Only use silicone to stick down if the floor and tray are perfectly flat.
When fitting the backer boards, keep them a few mm from the tray and fill the gap with silicone. This will stop the boards from squeaking! When there is any movement. ( there should be none! But do it anyway)
Are we talking wall or floorWe are debating whether we can cement (tile adhesive) our shower tray in before backer-board is fitted as you suggest. The reason I’m not sure, is the shower tray and glass screen are the correct size for each other. Doesn’t your suggestion (which makes sense from a waterproofing point of view) mean that the end glass screen panel will jut out beyond the tray? We’d love some advice as currently we are shielding and can’t have a tradesman in!
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