An article published in Winnipeg Free Press discusses how a new roofing job can affect the attic’s ventilation system:
Roof ventilation is important because there are so many changes that have taken place in the roofing industry. A lot of homeowners are changing from cedar roofing to duriod roofing (such as fibreglass laminated roofing shingles), aluminum or steel roofing.
If you have any synthetic roofing material installed on your roof, the roofer will use tarpaper or roof seal materials underneath the roofing material, so you have to increase the amount of ventilation to compensate because your roof no longer vents over the entire surface.
For every 300 square feet of roofing surface, you must have at least one square foot, or 144 inches, of venting. Every vent you buy today has an indicator stamped on it so you know how many square inches of ventilation that vent provides.
Newer models of roof shingles have protected homes from external elements, but have also affected the ventilation of newly replaced roofing in Tarpon Springs, FL. It is necessary that adjustments be made to prevent condensation from gathering up inside the home.
As part of the Tampa Bay Area, Tarpon Springs has a tropical climate that is high in humidity. If the attic is poorly ventilated, the roof will suffer from condensates within and outside the house. It will also cause the development of molds that will eventually lead to rotting in the roofing system.
A well-maintained attic not only prevents mold and mildew from destroying the roofing frame, it also extends the life of the roof’s shingles by keeping the attic cool in hot weather. Maintaining the attic will also have an effect on the overall temperature of the house, as a cooler attic will put less pressure on the home’s A/C system.
Better Tarpon Springs roofing ventilation can be installed through DIY roof and soft-fit vent projects. However, it is more advisable to contact a professional roofing company like Arry’s Roofing for such ventilation jobs. Experienced roofers can install the vents with speed and precision, and they can gauge how much damage the roof has taken if it has been exposed to a very humid attic for a long time.
(Article Excerpt and Image from Attic ventilation key to avoiding damage, Winnipeg Free Press, September 21, 2013)