Your house needs to breathe. The attic is where all the heat from the house builds up and is crucial for the air vapors to be expelled from the house to prevent condensation, ice damming, mold and pre-mature shingle wear.
In warm climates the roofs ventilation will help to keep the house cool, saving money on cooling costs.
In cold climates the roofs ventilation will help prevent ice and water dams. It does this by allowing the attic to remain cool so that it doesn’t melt the snow on top of the roof and allow the water to refreeze at the eave, causing the dam.
A ridge vent works best when paired with a vented soffit. The air flowing up through the soffit and out through the ridge allows for a vertical ventilation. The only opposing way to ventilate would be to have a horizontal draft by using gable vents. Gable vents are vents through the wall on each side of the attic that allow a natural breeze through the attic. It is not recommended to have both a vertical draft and horizontal, because they will cancel each other out.
Most shingle manufacturers warranties are void if the roof is not vented properly. Due to the over cooking roof temperatures.
We’re dedicated to meet your exterior project needs, as well as budget. Specializing in full service exterior renovations including: roofing, soffit, fascia, eavestroughing, and siding. Let us assist you, in completing your project needs. If you’re looking to request a FREE estimate on any of our services in Winnipeg, head over to our Estimate page and we’ll get started. You can also call Agassiz Roofing directly at 204.975.9426.