Ross 150 Roof Vent

11 12 roof pitch and higher increase the amount of ventilation by 30 percent.

Ross 150 roof vent.

For projects involving vents with motors the calculation formula is different. Ensure that the vents are installed with the peak at the up position. 7 12 to 10 12 roof pitches increase the amount of ventilation by 20 percent. Nails should be a minimum of 1 1 4 long and must penetrate the vent shingle and decking.

Secure the base with a minimum of 8 galvanized nails. The top of the ross 150 roof vent has a molded in peak. It offers 150 square inches of net free venting area which means fewer roof penetrations saving time and money. The ross 150cm is a patented design product that provides ventilation for flat roof applications.

The ross 150cm utilizes all the enhancements of the ross 150 static roof vent but with a fabricated curb to easily install over a building curb. In the case of the ross 150 roof vent purchased by or installed upon property owned by corporations governmental agencies partnerships trusts religious organizations schools condominiums or cooperative housing arrangements or installed on apartment buildings or any other type of building or premises not used by individual homeowners as their residences the warranty period will be 2 years following the installation of the ross 150 roof vent. The ross 150 roof vent is a patented design that has been tested and proven to perform. Up to 6 12 roof pitch use the standard formula as explained in this article.