DIY Roof Ventilation

Determine the type of ventilation you need, based on the design of your roof. Soffit or ridge vents, or a combination of the two, are standard for most homes with peaked roofs. Flat roofs, on the other hand, usually require breather or stack vents. It may also be useful to install an attic fan and rafter vents if you live in an area in which your roof is particularly prone to moisture problems.

Install your roof ventilation according to the manufacturer's directions. Most roof ventilation devices are quite simple and can be installed even by an inexperienced handyman. Exercise extra caution when you're on your roof, and don't deviate from the manufacturer's directions.

Maintain the roof ventilation. Simple preventive maintenance can help you avoid a great many moisture problems. Checking the roof ventilation components at least once per year to keep them free of birds' nests, leaf piles and other obstructions is an often overlooked but critically important part of maintaining your ventilation. Also, when you insulate your attic, make sure you don't cover the vents.