Trimline® Building Products, Minneapolis, offers Rigidroll® Plus with StormStop™. This shingle-over ridge vent comes in 20-foot lengths, can be installed with a coil nail gun, adapts to most roof pitches, and is virtually invisible once applied. StormStop is a spun-bound nonabsorbent membrane that allows hot, moist air to escape while keeping out heavy rain, sleet and snow. The vent also incorporates a bonding process that allows for an even straighter ridgeline after installation.