I've got a garden "shed" (made by roofing between the house and the fence and adding a door) that's used for storing garden tools; it's about 6m x 1.5m. The floor is a weak sand and cement mix but it's becoming quite powdery so I was wondering what to do with it.
If I PVA the floor first, is a self-levelling screed likely to give a good-enough surface for wheeling a lawn mower in/out?
Other ideas are paving or decking but these sound like a lot of hassle, and more expense.
I would have thought so.
PVA dissolves outdoors.
NT
The PVA will only be to bind the surface of the sand/cement mix before the screed is on it - although it will get damp from underneath.
If the slab is damp and/or you want bombproof, use SBR instead of PVA. It penetrates (unlike PVA) and once set, it is 100% resistant to damp degradation.
Only twice the price of pva now -it used to be a good deal more IIRC. I still prefer the behaviour of pva in mortar mixes for everything bar extreme conditions or very fine feathering. SBR doesn't really integrate with mortar, and drops out without constant stirring.
I thought normal self-levelling compound was specifically only recommended and intended for use where there will some sort of floor covering on top? ie, if so, it wouldn't be durable enough for what the OP proposes?
David
Stopgap 300HD does say "Not a wearing layer" but it's actually fairly hard.
A coat of floor paint would protect it - or dowse in dilute SBR, then it will be like iron.
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