Damp Floor and Wall - How to Treat Before Laying Engineered Wooden Flooring?


Postby gavski » Mon Jul 28, 2014 8:39 am

I have just lifted some laminate floor from my dining room and underneath are some lino tiles. There is mould on top of the tiles and damp patches around the floor/wall junction (see pic) where the mortar is crumbling away, this does not go above the damp course. and all the walls are dry.
I want to float an Engineered wood floor over the top of the lino as it looks like a solid flat surface but would like smome advice on the damp.

My thoughts are to clear the crumbling mortar and replace it, treat all the edges with tanking slurry (and primer) and lay a sheet DPM over the tiles, before laying boards and then the floor.
Is this the right thing to do? any thoughts, ideas appreciated.
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gavski
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Postby welsh brickie » Tue Jul 29, 2014 8:54 am

don't lay polythene it will sweat, paint it with aquaprufe it will seal the floor and waterproof it
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Postby gavski » Wed Jul 30, 2014 12:08 pm

Thanks, that's solved all my moisture worries (think most of the mould has come from sweating between the tiles and old laminate foam underlay that I took up.
gavski
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Joined: Sat Oct 02, 2010 1:46 pm


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