Sometimes homeowners install this insulation themselves, but other times they hire roofing or insulation contractors to improve the home’s energy efficiency by adding insulation.Īny part of the roof deck that has insulation touching it can’t be properly ventilated because air can’t get between the deck and the insulation. One easy-to-make mistake is stuffing the attic so full of insulation that air can’t circulate through soffit vents. #Installing rafter vents how toTalk to your contractor about the current ventilation setup and how to add more vents in a way that will affect the air currents for the better, providing more complete ventilation. Hiring a contractor who’s experienced with ventilation can help here. A strong turbine vent could draw air in through a gable vent, short-circuiting the ventilation process so the lower end of the roof deck isn’t aired out. In some cases, new types of vents don’t play well with the vents currently on your roof.įor example, if your roof’s ventilation system is designed to draw air through soffit vents and vent it out through gable vents, the addition of a turbine vent may not be appropriate. Increasing your roof’s ventilation may be necessary and helpful, but adding a new type of vent isn’t always a great idea. Installing Additional Vents That Disrupt Ventilation Inspection is especially important during a new roof installation, because the shingles’ manufacturer warranty likely requires proper ventilation in order to stay valid.Ģ. N addition, the old roof vents could be clogged up by cobwebs or have some other problems, so you should always have your contractors inspect them when you have roof work done. And the old system may not offer enough ventilation to optimize roof efficiency and help you create a cool roof. Your old ventilation may have worked for the old roof but may not be sufficient or up to code when you install a new roof. When you have a new roof installed, you can’t just assume that the old ventilation system is good enough. Here are some ventilation mistakes that an experienced contractor can help you avoid. Underlayment, flashing, and ventilation for your new roof are all critical parts of a roof, which is why you shouldn’t try to DIY roofing projects. The shingles are not the only important part of your roof.
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