Proper Humidity For Attic

For an attic to be properly ventilated it must also have a balanced system of intake and exhaust.

Proper humidity for attic.

What is the proper level. When it exceeds that threshold by too much and for too long you could experience problems like mold growth. As we ve covered earlier you should aim for somewhere in the middle of the epa s recommended range of 30 50 relative humidity. If you ve got a spray foamed attic and you ve got high humidity here s how to fix it for good.

In rare cases the humidity level may be too low. When it s not running the humidity in the attic drifts steadily toward 100 percent over a few weeks. Getting your humidity at home just right can be a bit of a balancing act. It s an old house.

With outside temperatures ranging between 5 f and 95 f attic temperatures range between 48 f and 92 f. Proper ventilation will help maintaining a constant temperature in your attic. We know high humidity levels can cause a range of issues so it s important to keep your indoor humidity under control. Is it a mistake not to have a vapour barrier.

This can result in mold rust and deterioration of wood and structural fasteners. The recommended humidity level at home learn how to maintain ideal moisture levels in the air to protect your family s health and comfort as well as the structural integrity of your house. During the spring summer and fall relative humidity rh in a spray foamed attic often exceeds the comfort threshold of 60. 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.

The federal housing administration has recommendations for the amount of ventilation you will need based on the size of your home. You can add more vents over the soffits. You can test this by touching something metallic in the attic and see if you receive a jolt of static electricity. Proper ventilation can help circulate the air reduce the heat build up in the attic and keep down humidity levels.

Ideal attic temperatures and humidity settings aren t always easy to maintain. The results are that the attic temperature is close to the outside temperature but the relative humidity is significantly higher in the attic than either the indoor or outdoor readings. High humidity means greater chances for mold to grow.