Hi
I bought a 1930 house last year. The driveway down the side of the house was just below the DPC and at the back corner it was just over. Causing rain to splash over the DPC. After looking at multiple threads of similar problems the solution is dig the drive down and replace so it finishes 150mm below DPC. Simple right?
So i started to dig down around the house to stop the rain splashing over the DPC and see what i am working with and this is where the problems start. The house is built on boulder clay & it looks like the foundations at the back corner and side are less than 150mm from the DPC! I was expecting it to go down 4 - 7 bricks from the drive level before the foundations. 1930 house building for you.
I was originally planning to replace with block paving or gravel in plastic grids. Problem is i will have to dig down at the side and expose the shallow foundations so i can back fill with type 1 then either blocks or gravel. This will have the drive finish at foundation level, but the foundations should be buried right? If you look on the picture of the back of the house the concrete slab is the same height as the buried foundations. So is this already exposed foundations? i put arrows on the first picture where the foundations are.
No matter how i look at it either the drive finishes close to foundation height if i dig down or if i cover the foundations with 150mm sub base, sand & blocks will be higher than it is now covering more of the DPC and will be above the doors!
Im looking for some advice & ideas on how to replace the driveway without causing any problems with the foundations.
could digging next to foundations cause problems with them moving?
fill next to house with concrete and put a slope into an aco drain?
put aco drain next to house, that will be as high or higher then the DPC?
use mot type 3 & gravel so it drains and wont splash, but clay drains slowly. Possible problems with water under or around foundations?
finish the drive at dpc level and seal or cover the bricks to avoid bridging?
Any help or suggestions would be appreciated!
I bought a 1930 house last year. The driveway down the side of the house was just below the DPC and at the back corner it was just over. Causing rain to splash over the DPC. After looking at multiple threads of similar problems the solution is dig the drive down and replace so it finishes 150mm below DPC. Simple right?
So i started to dig down around the house to stop the rain splashing over the DPC and see what i am working with and this is where the problems start. The house is built on boulder clay & it looks like the foundations at the back corner and side are less than 150mm from the DPC! I was expecting it to go down 4 - 7 bricks from the drive level before the foundations. 1930 house building for you.
I was originally planning to replace with block paving or gravel in plastic grids. Problem is i will have to dig down at the side and expose the shallow foundations so i can back fill with type 1 then either blocks or gravel. This will have the drive finish at foundation level, but the foundations should be buried right? If you look on the picture of the back of the house the concrete slab is the same height as the buried foundations. So is this already exposed foundations? i put arrows on the first picture where the foundations are.
No matter how i look at it either the drive finishes close to foundation height if i dig down or if i cover the foundations with 150mm sub base, sand & blocks will be higher than it is now covering more of the DPC and will be above the doors!
Im looking for some advice & ideas on how to replace the driveway without causing any problems with the foundations.
could digging next to foundations cause problems with them moving?
fill next to house with concrete and put a slope into an aco drain?
put aco drain next to house, that will be as high or higher then the DPC?
use mot type 3 & gravel so it drains and wont splash, but clay drains slowly. Possible problems with water under or around foundations?
finish the drive at dpc level and seal or cover the bricks to avoid bridging?
Any help or suggestions would be appreciated!