Does A Garage Attic Have Humidity

Even when a spray foam contractor does everything right you might still have high humidity in your attic.

Does a garage attic have humidity.

If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck. Common sources of condensation. The moisture and heat stored in your garage can potentially seep into your home causing increased temperatures and humidity within your house. They can damage your garage s foundation and cause tools vehicles and storage cabinets to rust faster.

And the extra heat is not just a summer concern come winter hot attic air can melt snow on the roof during. Sealed attics trap excessive heat and moisture which can lead to reduced shingle life. More often than not all you need to do is verify that everything is sealed and if needed install a dehumidifier. Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation.

After that put a little humidistat in your attic and check it every once in awhile to make sure everything is gravy. The normal indoor humidity range in winter should be 15 to. Mold and mildew from garage condensation also poses a potential health risk to a home s occupants. Moisture problems can also lead to mildew and mold putting your family s health in jeopardy.

Jason advani has insulated his attic with spray polyurethane foam and while his heating bills have dropped high humidity remains a problem. During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent. If garage moisture is a persistent problem check whether your dryer vent is directed into the garage. Excess humidity and condensation can damage your garage s structure its flooring and finishes and can potentially harm anything stored within your garage as well.

All exhaust fans and exhaust systems in your home should vent outdoors but builders may. High humidity in the attic insulating the underside of the roof deck solves one problem and creates another. By scott gibson march 18 2019. The short answer to this very involved question and the pages of temperature and humidity level data you sent is yes there is a risk that moisture from humid air in your attic will condense on.