Basement construction / Discussions

Where would I go for guidance on structural design of footings that sit on top of high-density insulation?

I'm not concerned with the compression issue, but rather how the lateral (shear) loads get transferred from the concrete footing into the soil, via the insulation layer.  DJB It would be a structural engineer you're looking for, and while we have a team here that deal with everything LEED & Passive House related, s...

Posted by Douglas Bennion July 31, 2019 Foundations and Basements 1 response

Can you elevate a slab on grade foundation?

...construction with 14 inches of seamless insulation on the exterior and 12 inches below the slab. Note where the doorway is in the front of the image - that is a wood fiber / cement product called Thermasill that allows for a solid surface outside of doors while avoiding the thermal bridging of concrete.  And if you hav...

Posted by Raoul Lions July 27, 2019 Slab on Grade 4 responses

What are the factors I should consider for choosing between a slab on grade and basement?

...basement, what are the implications of having half of the footprint as a slab, and half basement? Thanks Shaun   That is a common question, and a hot topic that often brings dissagreement, but we like that though!  So much so that we have a page highlighting the pros and cons, check it out -  Slab on Grade or Foundatio...

Posted by Shaun B April 2, 2019 Slab on Grade 3 responses