High Humidity In House And Attic

Keep eave vents clear of insulation and make sure you have adequate air flow.

High humidity in house and attic.

This can affect your home s structural integrity. See ventilate your home for ideas to improve air circulation in your house. Bad advice if humidity is high it s the air conditioner. If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck.

Higher humidity and moisture levels can be an extreme threat to your property including the structure surfaces and condition. Jason advani has insulated his attic with spray polyurethane foam and while his heating bills have dropped high humidity remains a problem. It can actually rain. Jason advani jason advani thought he was on the right track when he insulated the bottom of the roof deck in his walk up attic with closed cell spray foam.

It can often feel warm sticky and just plain gross. Keep an eye out for symptoms of rising damp such as mold rotting window frames flaky plaster or damp or wet patches on your walls. During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent. Freezing and excessively hot outdoor temperatures rain and high exterior humidity levels make it difficult for your.

Poor attic ventilation in colder climates can cause frost and condensation to form on the underside of your roof. By scott gibson march 18 2019. Since that time my home has gone from around 45 48 rh to 52 56 rh humidity 73 74 degrees. Hi i am hoping someone might be able to shed some light on a humidity mystery.

It s even worse when there are higher humidity and moisture levels in your home. But there s more danger behind it than just feeling bad. Rising damp is a rarer but more serious cause of high humidity in a home. Truth many humidity issues are caused by abnormally high moisture not the a c.

This moist air stays inside the house and when more moisture evaporates into an already moist air the level of humidity goes up. The humidity of a poorly ventilated home is naturally high because the air containing moisture has no way of leaving the house. I had my attic insulated with blown cellulose and air sealed i hope. Another reason of high humidity in house is poor ventilation.

The air conditioner needs to be properly sized and selected with sensible and latent capacity that matches the building design. Also we have an encapsulated conditioned dehumidifier and supply vent crawl with a radon system. The opposite happens in new homes. Indoor humidity can soar.

Poor ventilation in an attic can result in condensation promoting mold growth in the framing elements of the house.