Schist 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:Schist and slate are very similar in that they are made from the same rock types except schist is subjected to more heat and pressure.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:
There are three types of insulation solution if you have a flat roof: 1  Warm deck or warm roof refers to a situation where the 'deck' of the roof, which is usually made of wood, is below the insulation. 2  Cold deck or cold roof is where the insulation is below the roof deck (and the associated joists).
A water reed thatched roof, 12 inches thick at a pitch angle of 45 degrees meets the most modern insulation standards. The scientific term for insulating properties is thermal conductance, known as the U value.ouses, commercial establishments, heritage centers, holiday villages-you name it, we've probably thatched one. There is a practical consideration-the roof should have a slope no less than 45 degrees (12 inches in 12 inches) to aid in the shedding of water.