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:
Wet insulation is inefficient â but more immediately, it can be a hidden risk. When a roof leak leads to saturated insulation, that insulation almost always needs to be replaced. Wet Insulation Is Bad for Your Roof, Your Building, and its Occupants. Insulation sits just below the roofâs membrane. When a leak allows water to seep in through the outer membrane and saturate the insulation below, that moisture can deteriorate the roof on multiple fronts.
- EPS insulation not compromised by leaks. 1  Accepts single-ply, built-up and modified bitumen roof systems. 2  Reroofing Applications. In many instances, using lightweight insulating concrete (LWIC) in reroof applications can save costly tear-off of the existing roofing system.