does insulation in roof
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 roofâs 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.
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).