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Decking over concrete patio

HU-506444661
2 years ago

Hi. I have a concrete patio 85m2 fairly good condition and mostly under suffet. Slopping away from house My understanding I cannot put joists directly to concrete needs 12mm clearance min for air and water run off, I was going to use a dampcourse underlay and set joist perpendicular to houseany ideas nurajacks are pricey and there calculation I needed 300 or so, thanks in advance

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