DensGlass Ultra™ Shaftliner is a unique shaftwall and area separation wall panel. It consists of a patented water resistant, noncombustible gypsum core surfaced with coated glass mat facings that provide superior protection from the elements and help inhibit the growth of mold. The core has been reinforced with inorganic glass fibers, increasing its strength and fire resistance.
DensGlass Ultra Shaftliner exhibits greater moisture resistance than regular shaftwall liner panels with improved dimensional stability that resists warping, rippling and buckling. Tests show that DensGlass Ultra Shaftliner exhibits 15 flame spread.