Intake vents located at the lowest part of the roof under.
My attic is cold.
During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent.
Hang an outdoor thermometer in your attic making sure its range reaches at least 130 degrees fahrenheit.
Hang pencil and paper next to the thermometer and record the outdoor and attic.
If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck.
In fairness to attics having cold spots throughout your home can result from a combination of problems.
Ridgevent how is the air intake on the house.
A thick insulation between 14 to 18 inches will help reduce heat from entering your home.
The attic is a huge determinant in keeping your entire home cool so the first place to start cooling your home should be the attic.
So if it s cold outside and attic is cold more attic insulation obviously to keep house warmer and help with controlling heat loss.
You can install ridgevent all day long but if you dont have a proper venting system that creates it s onw convection current it ll be stagnet regardless.
They can also make those other problems worse.
Attics aren t the only culprit but they re a very common one.
Cool air in hot air out attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
If your attic is too cold it probably lacks sufficient protection from outside temperatures.
Air infiltration leaky ducts and improperly sized hvac systems all contribute.
Department of energy doe the average unimproved attic has just r 19 insulation the insulation value of a five and a half inch thick fiberglass batt.
Meaning 25 of incoming air coming in from each side soffit to total 50 fresh incoming air and then 50 exhausting capability.