How would you do a Slab on Grade with a post and bean garage in New Hampshire?
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How would you do a Slab on Grade with a post and bean garage in New Hampshire?
Robert Nordman
Jan. 19, 2022Last updated: Jan. 18, 2022
I am looking to put in a 24X36 Post and Beam Garage/Workshop, assuming the post are mounted on a concrete pillar below the frost line, how would you integrate the Slab on grade with that construction?
There isn’t a case where we would suggest going below the frost line with frost walls for a slab on grade, we prefer to to stay on grade and install a skirt of insulation around the perimeter of the building.
1英寸的EPS泡沫绝缘材料与1英尺的泥土绝缘，因此铺设4英寸的裙子比挖4英尺的沟要简单得多。You can see here in the images on this page abouthow to build a slab on grade on problem soilshow it is much easier it is than digging a footing.
A post and beam structure would have a few heavy point loads rather than having its weight distributed evenly along a footing so that would need to be carefully engineered, or you could try anengineered slab on grade raft slabwhich only requires digging 6 inches down to remove the organic layer as it is all built on a flat surface with no thickened edge footing needed. Raft slabs distribute the load of the building evenly over the whole surface. The page linked above is an example of just such a slab.