Causes Of High Humidity In Attic

By scott gibson march 18 2019.

Causes of high humidity in attic.

Freezing and excessively hot outdoor temperatures rain and high exterior humidity levels make it difficult for your. Because of the relatively moderate temperature in these areas moisture can go unnoticed and may not cause any problems there. When it exceeds that threshold by too much and for too long you could experience problems like mold growth. High level of moisture in the surroundings not only causes discomfort but.

Furthermore although the ideal humidity levels are less than 60 in the summer those numbers drop to 25 and 40 in the winter. Having higher humidity during colder months can cause complications too. As the moisture migrates upwards to the colder attic areas during the winter months the relative humidity is increased to the point that condensation can occur on cold surfaces. High humidity in the attic insulating the underside of the roof deck solves one problem and creates another.

When the water content of the air increases it affects the overall indoor humidity. What causes high humidity in a house. Jason advani has insulated his attic with spray polyurethane foam and while his heating bills have dropped high humidity remains a problem. Ideal attic temperatures and humidity settings aren t always easy to maintain.

During the spring summer and fall relative humidity rh in a spray foamed attic often exceeds the comfort threshold of 60. How do you keep it manageable and lessen it when it gets bad.