I am starting a new extension in a few weeks. The drawings were done by an architect and the drawing shows the footings cast in a 900mm deep trench 600mm wide. But the concrete is only shown 250mm deep. I always thought when pouring footings you filled the trench allowing about 5 courses of bricks up to the damp course.
Any ideas anybody? Somebody said it was a cheaper option as ready mixed is quite expensive, however there is a fair amount of labour involved trying to build a cavity wall in a trench. Plus it can't be too easy working in a confined space.
Or is it up to the local building control?
Any ideas anybody? Somebody said it was a cheaper option as ready mixed is quite expensive, however there is a fair amount of labour involved trying to build a cavity wall in a trench. Plus it can't be too easy working in a confined space.
Or is it up to the local building control?