Most residential foundations in the
Northeast are deep, with full basements.
As a result, details for slab-on-grade
foundations are less commonly known.
Many builders simply apply the same
details used in more southerly climates,
where slabs are more prevalent. This
isn't ideal, particularly now that energy
concerns have led to the use of more
insulation. Foundation details need to
take into account the added insulation.
This article is based on principles discussed
in the Builders Foundation
Design Handbook (University of Minnesota
Underground Space Center, 500
Pillsbury Drive SE, Minneapolis, MN
55455, 349 pages; $33).
Insulation: Where and
Insulation may be located either
inside or outside the foundation wall,
and it may be positioned either vertically
or horizontally. Insulated concrete