Posted: Sat May 10, 2014 2:53 pm
Just about to embark on my patio project and have a question.
Having dug up the majority of the area to be paved ready for type 1 to go in, I have come across some of the soil and soakaway pipes that were under the grass (no pre existing patio before I started). My problem is that some of these pipes are at a depth of approx. 125-180mm below what I want to be my new ground level, dictated by the dpc. My belief after much reading of this excellent site is that I need at least 100mm of type 1, then mortar then slab, which is going to be circa 150mm, meaning my type 1 could end up going straight onto the pipes which I presume is not good.
So do I encase in concrete then put shallower type 1 in on these areas, or is there another way?
Having dug up the majority of the area to be paved ready for type 1 to go in, I have come across some of the soil and soakaway pipes that were under the grass (no pre existing patio before I started). My problem is that some of these pipes are at a depth of approx. 125-180mm below what I want to be my new ground level, dictated by the dpc. My belief after much reading of this excellent site is that I need at least 100mm of type 1, then mortar then slab, which is going to be circa 150mm, meaning my type 1 could end up going straight onto the pipes which I presume is not good.
So do I encase in concrete then put shallower type 1 in on these areas, or is there another way?