Blocksom & Co., Michigan City, Ind., offers Roof Saver rolled ridge vent that is now nail-gunnable. The ridge venting system is made with natural fiber materials in a continuous shingle-over rolled style. Due to its bristly nature, the product already installs easily along the ridge. In addition, Roof Saver excels at reducing conditions that allow mold and mildew to flourish in the attic by offering 16.85 square inches of net-free ventilation area per linear foot. The product comes with a 40-year warranty and national testing approval.