We are building a side return kitchen extension.
The building Inspector has passed the work done so far, up to dpc.
I need to build up a raised patio area up to 40 cms 5m x 3m to finished level surrounded with a single brick wall. What I have read is that to back fill extra soil from elsewhere in the garden is not a good idea as it will sink, I have also read that Type 1 filling should be no more than 20 cms. I have a bit of rubble not much really and some pea single and ballast. I intend to finish the patio off with some kind of porcelain tiles.
What could I use as a sub-base before I put in the Type 1 filling. I will be hiring a Wacker Plate to compact layers as I go along. Some advice on order of layers would be helpful too.
Thank you very much for any advice.
Please see the photos below which includes shallow trench for single leaf patio surrounding wall.
The building Inspector has passed the work done so far, up to dpc.
I need to build up a raised patio area up to 40 cms 5m x 3m to finished level surrounded with a single brick wall. What I have read is that to back fill extra soil from elsewhere in the garden is not a good idea as it will sink, I have also read that Type 1 filling should be no more than 20 cms. I have a bit of rubble not much really and some pea single and ballast. I intend to finish the patio off with some kind of porcelain tiles.
What could I use as a sub-base before I put in the Type 1 filling. I will be hiring a Wacker Plate to compact layers as I go along. Some advice on order of layers would be helpful too.
Thank you very much for any advice.
Please see the photos below which includes shallow trench for single leaf patio surrounding wall.
