Martin holladay explains insulating a slab on grade in the energy smart details department.
Insulating concrete slab on grade.
By replacing concrete with lower impact and better performing building materials like.
Insulating a slab on grade depends on at least four factors.
A slab on grade is defined as any concrete slab poured over excavated soil.
It seems like it should not be so complicated.
The climate the type of foundation whether the slab includes hydronic tubing for radiant heat and the severity of the local termite problem.
From a radiant heating perspective it doesn t matter if the slab is actually at grade or is poured several feet below grade as part of a full foundation.
Yet slab on grade insulation can be arranged in a number of configurations each with pros and cons.