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.
Now, if you do want a warm garage, then I would add a heater and insulate the ceiling, walls, and garage door. Depending on the size of your garage, insulating the walls with batts of R-13 will typically run you about $400, the ceiling $600, and the garage door will cost about $600 if you do it right.You can use the pink Styrofoam stuff from Home Depot, but that will only insulate your door to about R-6.If you spend a lot of time in the garage, buying a whole new insulated garage door might be better, but it will cost you about $1500 alone.So if you do just the walls and the ceiling, itâs probably going to run you $1,000. A bit pricey if you donât spend any time in the garage.f you spend a lot of time in the garage, buying a whole new insulated garage door might be better, but it will cost you about $1500 alone. So if you do just the walls and the ceiling, itâs probably going to run you $1,000. A bit pricey if you donât spend any time in the garage.