JUAL PLAT GRATING NO FURTHER A MYSTERY

Once fiberglass insulation will get moist (and it'll get wet, as a result of condensation) it will eliminate r-value! H2o trapped amongst fiberglass insulation and the outside of the creating can even lead to mildew, fungus growth, rust and oxidation - Situations that should degrade the metal and shorten the provider in the construction. BBB repor