Hi all. New member here..
im extending my wood frame cottage in Sweden
After removing the topsoil in the footprint of the extension we have found granite bedrock, the highest point of which is just manageable for the required floor height.
However... there is a depression in the granite that appears to hold water and will only very slowly drain away through cracks in the bedrock.
We plan to build over the top of this area. Other than blasting a trench, any ideas for the management of this problem? Being Sweden, this will freeze solid in the winter.
Possible remedies....?
backfill with concrete/substrate?
build on higher footings and ignore?
Photo shows the direction of the fall of the plot, high ground behind me with bedrock only just below the surface making an uperside drain or barrier another problem....
thanks in advance for any ideas...!