Having a properly ventilated roof is important all year long. During warmer months, ventilation helps keep attics cool. It helps prevent hot moist summer air from warping the roof sheathing. It even stops shingles from deteriorating prematurely. The fresh air from proper ventilation makes the home easier to cool, which can result in lower energy costs. In winter months, ventilation helps reduce moisture to keep attics dry. It stops water from backing up under shingles, damaging insulation, and rotting the roof structure. It also helps prevent ice dams from forming. Ice dams occur in areas where snowfall and cold temperatures are common and pose a special problem because they prevent melting ice from running off the roof. Without proper ventilation, leaks could occur inside the home, resulting in drywall damage.
"Ventilate" comes from the Latin word meaning "to fan." Simply put, it's the action of moving air. Out with the hot, in with the cool. That's exactly how ventilation works. It provides conditions that allow air to flow. Every time that stale and overheated air in your home or attic is vented out and fresh air is pulled in to replace it, you have what is known as an "air exchange." Ventilation is much more than a simple breeze blowing through your house. It's a process that provides a steady, high volume of air movement. Think about it as a system of components, all sized and positioned to provide constant intake and exhaust of air.
Shingle Vent II Ridge Vent installs on the peak of the roof allowing exhaust ventilation along the roofline end to end. This product proves that outstanding beauty and performance can be combined. Design features include an external baffle and internal filter for optimum airflow and weather protection. Less than an inch in height, this molded, high-impact copolymer shingle over ridge vent permits capping of the ridge with shingles like the rest of the roof.
Exceptional airflow. An external baffle creates low pressure over openings to pull air from the attic. Shingle Vent II provides 18 square inches of net free area per linear foot.
Advanced Weather Protection. The external baffle deflects wind and weather over the vent to help protect the attic from rain and snow infiltration.
Internal weather filter. Provides a more complete barrier to help protect attic from wind driven rain, snow, dust and insects.
Easy Installation. Shingle Vent II has pre-printed slot guides for truss or ridge pole construction. Pre-drilled nailing holes are designed to assure proper nailing. The vent is pre-formed to a 4/12 pitch.
ENERGY STAR qualified roof coating products reduce the amount of air conditioning needed in buildings, and can reduce energy bills by up to 50%. The Cool Roof Program defines certain standards for reflectivity, and maintenance of reflectivity in roof coating systems. These light colored roof coatings reflect the suns heat and UV rays and often lower the temperature of the roof by up to 100 degrees.