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 hot roof is a properly sealed unvented attic, instead of a traditional vented roof which consist of an insulated attic floor and open soffits where air enters and then leaves through the top of the roof.pray foamed attics have foam applied directly to the roof decking, and the attic space isnât ventilated. The lack of ventilation is why they are called hot roofs. In a standard insulation system, ceiling insulation reduces the transfer of heat from the attic to the living space (in the summer).