Does A Garage Attic Have Humidity

This is exactly how water accumulates in your gas tank by the way the scientist next door.

Does a garage attic have humidity.

The short answer to this very involved question and the pages of temperature and humidity level data you sent is yes there is a risk that moisture from humid air in your attic will condense on. Common sources of condensation. All exhaust fans and exhaust systems in your home should vent outdoors but builders may. Moisture problems can also lead to mildew and mold putting your family s health in jeopardy.

The humidity in the basement measured 40 the first floor was 45 50 but the attic was 62. Excess condensation and humidity levels in your garage have a negative affect on your home. The moisture and heat stored in your garage can potentially seep into your home causing increased temperatures and humidity within your house. If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck.

The issue in the attic is that at 48 degrees f. The moisture was rising with the warm air of the home as it escaped past the insulation and it was trapped in the attic because there was no roof ventilation. Outside air moves into the attic leaves its moisture behind amd moves on. Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation.

That s just the properties of moist air. The normal indoor humidity range in winter should be 15 to. You are approaching the 43 deg dew point and some colder surfaces like windows you will get condensation there. Mold and mildew from garage condensation also poses a potential health risk to a home s occupants.

Sealed attics trap excessive heat and moisture which can lead to reduced shingle life. During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent.