Attic Humidity Level

Advani hopes to finish the attic and install a minisplit although he s not sure that will lower the humidity.

Attic humidity level.

Fortunately while you can t change the outdoor humidity there are a number of steps you can take to control humidity levels in your house which should ideally be between 30 percent and 50. Ideal attic temperature and humidity settings cold outdoor temperatures affect attics. The humidity in the basement measured 40 the first floor was 45 50 but the attic was 62. 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. High humidity means greater chances for mold to grow. A hygrometer is a small gadget that measures the relative humidity level and temperature quickly and easily. If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck.

Quelch the heat wave. Only about 10 of the hip roof is shaded so it gets plenty of direct sunlight. During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent. According to the environmental protection agency epa indoor humidity levels should be kept below 60 percent relative humidity and ideally between 30 and 50 percent.

What stands out is the high relative humidity inside the house. If water is running down the window or objects seem wet to the touch then the humidity is far too high. 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. It could be that despite having done what.

At 48 52 you re at the upper tier of the recommended 35 50 during heating season. The recommended humidity level for all rooms including the attic and crawl space in the winter is 30 to 40 percent in cold climates. It s easy to measure the levels in your home by using a hygrometer.