I am about to put down the Type 1 base factoring in a slope (red arrows in the picture) towards the front of the patio. That will mean the slabs at the front (nearest) will be c. 4-5cm below the top of the railway sleeper.
Therefore, my question is what should i do about drainage to avoid the water collecting at the front?
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!