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.
An excellent question. The solution, which admittedly is not practical, is to never open your garage door, or to always leave your garage door open. At this time of year, your garage floor is very cold. When the door opens, warmer higher humidity air enters the garage and hits the cold garage floor.n an unpainted floor the moisture would be absorbed into the concrete. On a painted floor this is not possible. Therefore, there is no real solution to your problem other than to let the garage floor heat up.