My raised stone patio will be going over the first couple of courses of brick on my house. (I was told, too late - retaining wall already built - that this might not be the best idea...) Someone said I might run in to problems with the spaces along the bottom course of bricks (there is a gap in the mortar every 8 bricks or so) with water getting in to the house. I don't see how (there will be gravel, sand, and pavers on top - all sloped away from the house) but was wondering if anyone had experience with this problem and whether I should put some sort of flashing or close up those gaps in the bricks? Welcome your thoughts... Also - I've read a lot about using fabric (one layer or two...read some posts...but I don't really understand why it is important in the paver process. (I hadn't planned on using it - don't want to regret anything...doing everything else above & beyond - just can't figure out the necessity of fabric(?) Thanks.