Understanding your attic ventilation options can lead to higher quality roof system installations, which in turn boosts your business and helps keep your customers happy. Sounds like an all-around win, right? Fortunately, installing the right attic ventilation options can be a bit simpler when you know how to calculate the proper amount of ventilation and choose the right products for the job.
Ventilation for steep-slope roof assemblies is often misunderstood. One must not only understand the code requirements, but be able to translate them into real-world installations. Building codes have requirements for ventilation of steep-slope attics and enclosed rafter spaces. Balanced ventilation — nearly equal amounts of intake and exhaust — typcially provides efficient ventilation. Transitions between low-slope and steep-slope roof areas require more distinct intake and exhaust details than traditional eaves/soffits and ridges.
How do you pick the right attic vent? The first step is to check out this 60-second video and learn about the 1:300 rule, the difference between intake and exhaust ventilation, and why proper ventilation is so important to get right.To help calculate your attic ventilation needs, visit GAF Ventilation Calculator.