Hi all,
I'm new here so hello to everyone, hopefully this is a simple question to answer.
I'm putting in footings for a conservatory, the soil under my house is chalk and its only about 6 inches down. If I have solid chalk to lay my footings in do I really need to go to the regulation 600mm deep? I was intending to use a 450x250cm foundation, that extra 350mm is an extra 5 layers of subsoil brickwork for what actual gain? My plan was to dig down far enough to bury my footings and maybe 1 brick subsoil giving about 350mm from soil level to the base of the footing. As long as its all dug down to solid chalk shouldn't this be ok? One wall will be a single story high end wall, probably a cavity wall.
Cheers
Pete
I'm new here so hello to everyone, hopefully this is a simple question to answer.
I'm putting in footings for a conservatory, the soil under my house is chalk and its only about 6 inches down. If I have solid chalk to lay my footings in do I really need to go to the regulation 600mm deep? I was intending to use a 450x250cm foundation, that extra 350mm is an extra 5 layers of subsoil brickwork for what actual gain? My plan was to dig down far enough to bury my footings and maybe 1 brick subsoil giving about 350mm from soil level to the base of the footing. As long as its all dug down to solid chalk shouldn't this be ok? One wall will be a single story high end wall, probably a cavity wall.
Cheers
Pete