Attic Humidity Level

At 48 52 you re at the upper tier of the recommended 35 50 during heating season.

Attic humidity level.

Cold outdoor temperatures especially below freezing can wear on your furnace. During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent. 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.

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. The recommended humidity level for all rooms including the attic and crawl space in the winter is 30 to 40 percent in cold climates. What stands out is the high relative humidity inside the house. High humidity means greater chances for mold to grow.

Advani hopes to finish the attic and install a minisplit although he s not sure that will lower the humidity. 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. Hot summer weather poses the opposite problem for maintaining recommended attic temperatures. 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. If water is running down the window or objects seem wet to the touch then the humidity is far too high. You can check the humidity level by observing the windows and the objects in the attic. Only about 10 of the hip roof is shaded so it gets plenty of direct sunlight.

Ideal attic temperature and humidity settings cold outdoor temperatures affect attics. 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. Quelch the heat wave.