Causes Of High Humidity In Attic

Causes of high humidity in a house are come from life activities crawl space leaking in the walls appliance there are a lot of facts but these are major reason we can see easily.

Causes of high humidity in attic.

Freezing and excessively hot outdoor temperatures rain and high exterior humidity levels make it difficult for your. Ideal attic temperatures and humidity settings aren t always easy to maintain. Jason advani has insulated his attic with spray polyurethane foam and while his heating bills have dropped high humidity remains a problem. Because of the relatively moderate temperature in these areas moisture can go unnoticed and may not cause any problems there.

By scott gibson march 18 2019. Having higher humidity during colder months can cause complications too. When the water content of the air increases it affects the overall indoor humidity. During the spring summer and fall relative humidity rh in a spray foamed attic often exceeds the comfort threshold of 60.

Furthermore although the ideal humidity levels are less than 60 in the summer those numbers drop to 25 and 40 in the winter. High humidity in the attic insulating the underside of the roof deck solves one problem and creates another. When it exceeds that threshold by too much and for too long you could experience problems like mold growth. If you ve got a spray foamed attic and you ve got high humidity here s how to fix it for good.

How do you keep it manageable and lessen it when it gets bad. 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.