Probably less than 3 percent of the homes standing today (new and existing) have proper attic ventilation. Those that do can achieve this goal in several different ways.
The houses that have proper ventilation do so in the following way. Continuous or ample singular vents are placed at or near the top of the roof. A similar system of vents is then placed at the bottom or under side of the roof. This system works like a forced air heating or cooling system in your home. The air that leaves the upper vents is replaced by the same amount of air at the lower vents.
It is extremely important to have both upper and lower vents. This is what produces the flow through and continuous air flow in your attic. Furthermore, the vents should be installed in a specific fashion. Sixty percent of your venting area should be in the lower vents, while the remaining 40 percent should be at the top of your roof.
Tuesday, June 26, 2007
Attic Ventilation Primer
Ventilation Primer - How Much is Needed?
