It’s easy to assume an attic doesn’t really need ventilation, since there’s hardly ever someone inside that room. However, having an efficient air system in there can actually benefit the entire home structure, especially the roof.
The government recommends at least 1 square foot of ventilation for every 300 square feet of attic space. This creates a powerful air flow that can keep your energy costs down, reduce the likelihood of icicles, and slow down roof decomposition.
You might be wondering how all that air blowing around keeps your housetop secure. Well, it’s all about balance. Different parts of the roof are exposed to equal amounts of oxygen, so it’s never too hot or too cold in any single spot.
As they say the more people who carry the weight, the lighter the load feels. Both extremes of temperature are carefully rationed together, as these systems take in cold oxygen from the exterior and send out hot oxygen from inside the room. So there’s always a harmonic blend of both sides.
A strong attic ventilation system is like a strong respiratory system to your home; it keeps the place clean and alive all around. You’ve probably heard many people preach about how moderation maximizes one’s health, and the same basic thing can be said about these air systems; they carefully organize the ratios between different conditions, ensuring there’s plenty of room for every bit and piece to work within.