When the house has no soffits and hence no soffit vents.
Roof ridge ventilation problems.
Ridge vents openings that run the entire length of your roof along the ridge are often visible only to a trained eye.
Or when adding eave vents would clash with the house s architectural style.
Roof ridge vents can reduce indoor air pollution levels.
Hidden in plain sight and often camoflauged by specialty ridge shingles these.
While this is a real concern all vents that you can install for cooling your attic will have some amount of wear and tear.
I would recommend you cover or remove any existing roof vents if you are planning to install ridge vents.
An unvented roof is often the only viable option when roof framing is complicated such as when there are hips valleys dormers or skylights that would prevent eave to ridge ventilation.
If you are installing a ridge vent for ventilation on your roof.
The only problem with this lifestyle is that the quality of your indoor air can be up to 5 times worse than the outside air.
When you have proper roof ventilation in place you re allowing the hot air to escape before it melts the snow and ice on the roof preventing ice dams from forming on its edges.
The roof has to be at.
Rather just have the ridge vents and the soffit vents paired together.
The problem is this water refreezes as soon as it reaches the roof s edges hence the formation of ice and snow around the roof s edges.
Ridge vent problems on your roof and how they can cause you problems.
Roof vents create an additional roof penetration essentially another place of vulnerability where leaks can occur.
With most ridge vents being made out of durable plastic after a long time from heating and cooling this plastic can start to crack and degrade.
Unvented roofs also.
About two thirds of that time happens at home.
The average person spends about 90 of their time indoors each day.
This will mean that you will need to cover or remove the gable vents though as this will hinder the effectiveness of the ridge vent.