JM Spider® For Drill and Fill
JM Spider® insulation offers many big advantages over cellulose in drill-and-fill applications. Incredibly easy to install, it's convenient and saves time, while offering superior thermal and acoustical performance. JM Spider® meets new Building Performance Institute (BPI) standard for dense-pack wall applications. JM Spider® also provides up to 30% better air resistance than cellulose when installed at recommended densities for site-built construction. Our unique design enables the fibers to more effectively fill tight spaces around pipes, wires and electrical boxes. For example, JM Spider® will fill 2x4 cavities up to an impressive R-15 thermal rating and 2x6 cavities up to R-23. In addition, because fiber glass is naturally mold-resistant, it does not encourage the growth of mold or mildew.
