Attic Humidity Level

Quelch the heat wave.

Attic humidity level.

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. High humidity means greater chances for mold to grow. 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. 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. 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. Ideal attic temperature and humidity settings cold outdoor temperatures affect attics. It s easy to measure the levels in your home by using a hygrometer.

Only about 10 of the hip roof is shaded so it gets plenty of direct sunlight. A hygrometer is a small gadget that measures the relative humidity level and temperature quickly and easily. Cold outdoor temperatures especially below freezing can wear on your furnace. It could be that despite having done what.

If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck. At 48 52 you re at the upper tier of the recommended 35 50 during heating season. Advani hopes to finish the attic and install a minisplit although he s not sure that will lower the humidity. During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent.

Hot summer weather poses the opposite problem for maintaining recommended attic temperatures. Proper ventilation will help maintaining a constant temperature in your attic. If water is running down the window or objects seem wet to the touch then the humidity is far too high.