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underpinning

  1. Building & Construction
    I am having a generic question on the basics of the foundation design. Everywhere I look, the suggested way to pour the slab on top of the concrete footing (refer to picture 1'). What would be the fundamental problem if the slab is poured flush with the footing, thus lowering the slab level by...
  2. HVAC
    I live in Toronto. The house is was built in 1902. Major renovations to the electrical, heating and plumbing were done in 1995. I am going to build a walk out entrance for the basement. As a result, I will be underpinning the floor to increase ceiling height. In order to maximize the living...
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