There are many different things that can have an adverse effect on your roof, and one of the biggest ones is poor attic ventilation. Believe it or not, poor ventilation in your attic can actually damage your roof, which is why it is so important that you make sure your ventilation in this part of the house is working properly.
A good attic ventilation system allows a steady flow of air from outside to get through the attic, maintaining the overall efficiency and integrity of the insulation as well as preventing the temperature in the house from getting too high. Proper ventilation is a combination of air intake and air exhaust. A minimum of 1 square foot of attic ventilation for every 300 square feet of attic space is recommended by the U.S. FHA or Federal Housing Administration. It is important that this amount is distributed equally between the exhaust and intake ventilation.
Inadequate attic ventilation can cause the heat to build up in the attic, up to 160 degrees Fahrenheit which will damage your roof. This ultra hot air eventually gets through the ceiling insulation, leaking into the rest of the home where it can increase the temperature to an uncomfortable level.
Improper attic ventilation can cause damage your roof entire roofing system to begin aging prematurely, which is something that could end up costing you a lot of money. Warping and cracking of the roof are two other things that are commonly associated with poor attic ventilation. The type of damage your roof sustains depends on the material it is made from, but it is a risk that you should not take as a homeowner. Damage to siding as well as wallpaper and interior paint can even occur if there is not proper ventilation in the attic.
By having a functional and efficient ventilation system in your attic, you will be able to avoid potentially costly repairs or even an entire roof replacement somewhere down the line. With enough time, improper attic ventilation can even cause structural damage to your roof in the form of mildew or mold growth, buckling shingles, warping, and rotting of wood framing. Most of the repair services required for this type of damage is very expensive, and it can be easily avoided by simply updating or adding on to your current ventilation system in the attic.
If you are concerned about the cost of a new ventilation system for your attic, you will definitely want to do your research. The amount of money that you pay for a proper attic ventilation system will depend on the size of the roof, the vent type, and a number of other things. A ridge vent, for example, usually costs more than a fan because it requires work to be done along the length of the roof. A Fan only requires a small area of the roof to be removed and can prevent damage your roof.
It is highly recommended that you hire a professional to install your new attic ventilation system, because there could be serious consequences if the job is not done properly.