Your roof's main function may be to keep the outdoor elements out of your home, but it does still need to allow for some ventilation. A poorly ventilated roof can lead to an array of issues from moisture damage in the attic to accelerated shingle decay. So it's important to make sure your roof is well ventilated and to take steps to improve ventilation if needed.
What are some signs your roof is not well ventilated?
One of the best ways to tell whether your roof is properly ventilated is to venture into your attic. Do you notice that the air feels overly warm and moist? Maybe the insulation has a dampness to it, or perhaps you even notice spots of mold in some places. These are all signs of poor ventilation.
Also, keep an eye on the roof during the winter. If big blocks of ice are forming on the edge of the roof after snowfall, this is a sign of poor ventilation. The roof is growing too warm, causing the snow to melt and trickle down to the edge of the roof where it freezes.
You may also have a poorly ventilated roof if you notice your shingles starting to peel or flake off prematurely.
What should you do about poor ventilation?
Sadly, this is not typically an issue you can address on your own. You'll need to contact a roofing contractor to have them add some more vents to your roof. Depending on your roof's layout, they may use soffit vents, which are vents that are placed under the eaves of the roof, or they may use a ridge vent, which is a vent that stretches across the ridge of the roof. If you only have one or the other (soffit or ridge vents), adding the other is a good way to increase ventilation.
In some cases, the layout of your home may not allow for any more soffit vents or a ridge vent. If this is the case, your roofing contractor may recommend an attic fan. This is a large fan that can be turned on as needed to bring fresh air into your attic, keeping moisture levels in your attic under control.
If you're not sure whether or not your roof is properly ventilated, reach out to a roofing contractor in your area like Emerald Roofing. It's better to take care of this upfront than to wait until moisture damage has already been done to the insulation and shingles.