High Humidity Attic Winter

High humidity in the attic insulating the underside of the roof deck solves one problem and.

High humidity attic winter.

Air sealing an attic. If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck. During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent. But the humidity level still too high for my.

The attic temp is generally around 10 degrees higher than the outside temp. During the spring summer and fall relative humidity rh in a spray foamed attic often exceeds the comfort threshold of 60. Indoor humidity can soar. So the first step is to seal the air leaks.

The humidity gets to the high nineties when the temp gets below 40 at night and then drops to 60 once the attic temp reaches the sixties. Here is a link to an article that describes the work. The normal indoor humidity range in winter should be 15. If you ve got a spray foamed attic and you ve got high humidity here s how to fix it for good.

When it s not running the humidity in the attic drifts steadily toward 100 percent over a. During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold. Awareness of proper attic ventilation is at an all time high. High humidity doesn t necessarily mean the there is more moisture just that the air is having a tougher time holding the.

High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house. If you notice condensation on your windows and walls find peeling wallpaper or bubbled paint or see mold spots around the house your home s humidity is too high. Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation. Do humidity levels rise and fall in the winter months.

In order to avoid attic condensation it is important to make sure that the attic receives proper ventilation and that it is properly protected from the outside elements two of the most common causes of attic condensation are high levels of humidity within the living spaces beneath the attic and moisture seeping in through the roof. For those who are having a problem with attic condensation. To find out how serious your humidity issue is hang a hygrometer on your wall. An indoor humidity of between 45 to 55 percent is ideal but anything higher will cause problems.

These old houses rarely have roof deterioration or interior roof rot problems in winter.