Moisture In Attic After New Roof

This is not workmanship related or an actual roof leak.

Moisture in attic after new roof. Improper ventilation and insulation of home attic space can produce high humidity levels and trap. By adding moisture to the lower floor you increase the partial pressure of the water vapor which pushes it to areas of lower vapor pressure like the attic. Condensation will arise as a result of warm moist air penetrating up through the ceiling. The major contributor to condensation in your home is improper ventilation.

Condensation on your ceiling can cause water damage and promote the growth of mold or mildew. To prevent frost condensation from developing in your attic you must eliminate or reduce the amount of air leakage into the attic as well as improve insulation ventilation to allow moist air to escape the roof. In turn the droplets of water come off the roof and can soak insulation. In the event of the attic not being properly ventilated this would condense on the underside of the roof.

Condensation comes from the moisture in the air and is caused by too much moisture in the air for a certain temperature. Water found in these places is commonly caused by condensation in the attic. Moisture or frost on the roofs sheathing. So they equalize pretty quickly.

If you suspect you have moisture problems in your attic check for the following indications of excess moisture in the attic. It s no surprise that this tends to occur more in colder months when home heating is more common and intense. Fixing this issue can be less costly than replacing a roof but it should be addressed as soon as possible. Moisture occurs when heated air inside the home rises up to the roof where it meets the colder temperatures of outside air.

Leaky bathroom and kitchen vents allow warm air to escape into an attic and then condenses on cold roof sheeting. Moisture frost and ice buildup on roofing nails. The moisture can also run down ceilings and walls creating stains. If there s no air space the moisture never dries out and can lead to premature degradation of the metal roof.

Roof condensation has a very specific cause. Water or drip marks scattered on the attic floor. The rapid cooling leads to immediate condensation. Condensation forms when warm moist air touches a surface that is colder than the.

Buckled or damaged roof sheathing. Most people assume this is caused by a leaking roof but that might not be the source. In the cooler times of the year when metal is cold the warmer moisture in the building moves into the attic hits the metal roof and condenses on the underside. The difference in the two spaces is the dry bulb temperature.