I've heard conflicting ideas on which way patio slabs should slope? The popular one seems to be that they should slope AWAY from the house so that water drains away? Then someone told me that you don't want the foundations to dry out (particularly this dry summer) so the slabs should gently slope towards the house. I was thinking of having a half-slab width of gravel against the housewall, and then gently slope the first few slabs TOWARDS the house and the rest away. Is this a good idea? Thanks in advance.