Most schist contains the mineral mica and is called mica schist. Schist is often used as a guide to measure specific sizes and dimensions of objects. Before the 18th century, schist, shale, and slate were used interchangeably to describe the same rock.chist Rock Facts. Schist is a metamorphic rock that contains flakes of mica. Schist can originate as a sedimentary rock or igneous rock. It can contain different miners. Interesting Schist Rock Facts:
1 Insulating the garage overhead door is another way of cooling the garage in the summer and keeping the space warmer in the winter. 2  For an uninsulated metal door add a two-inch thick layer of rigid insulation attached to the inside of each panel with contact cement.
Concrete is cold and hard, but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient. The best way to insulate a slab is to isolate it from the ground and the air around it by insulating under the slab and around its edges. That's not always possible, especially in existing construction, but if you're able to build a finished floor inside your garage, you can insulate on top of the slab.