Picking the Right Vent for your Project
Did you know that to properly exhaust ventilate a gable roof that has approximately 1,500 square feet of attic floor space it would take:
5 wind turbines (14" in size each providing 132 square inches of net free area airflow); or
15 roof louvers (each providing 50 square inches of net free area); or
42 linear feet of ridge vent (providing 18 square inches of net free area per linear foot).
And of those options, only ridge vents deliver a continuous flow of air from low on the deck (eave) to high (peak) along the entire horizontal peak of the roof. That's because only ridge vents are installed end-to-end, non-stop along the roof peak. In fact, no other attic exhaust vent category can deliver this, including power fans, because none of them besides ridge vents are installed interruption-free on the roof. Every other category of exhaust by design leaves gaps between vents. Where there are gaps between vents, there is little to zero airflow.
Let's talk curbside appeal. What do you think homeowners would prefer to look at - even on the backside of their roof - any time they look at their roof: a bunch of protrusions created by multiple individual vents or streamlined ridge vents with matching shingles installed on top to blend in nicely with the roof's appearance? Ridge vents deliver proven performance and beautiful looks. Consider them on every roof that has sufficient ridge length.
Air Vent's family of ridge vents includes their flagship ShingleVent® II which features an external wind baffle (to create low pressure above the vent's openings enhancing its airflow while deflecting any weather carried by the wind) and an internal weather filter (for additional protection in harsh winter conditions).
Contact Greenawalt Roofing Company today for more information, or to schedule your FREE estimate at 717-898-6000 or 610-779-3111.
