Moisture In Attic After New Roof

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.

Moisture in attic after new roof. Water found in these places is commonly caused by condensation in the attic. The difference in the two spaces is the dry bulb temperature. Moist or wet insulation. 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. 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 rapid cooling leads to immediate condensation.

Condensation will arise as a result of warm moist air penetrating up through the ceiling. 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. If you raise the attic temperature the rh in both places would be the same. Moisture or frost on the roofs sheathing.

Moisture occurs when heated air inside the home rises up to the roof where it meets the colder temperatures of outside air. Condensation comes from the moisture in the air and is caused by too much moisture in the air for a certain temperature. If you suspect you have moisture problems in your attic check for the following indications of excess moisture in the attic. Leaky bathroom and kitchen vents allow warm air to escape into an attic and then condenses on cold roof sheeting.

In the event of the attic not being properly ventilated this would condense on the underside of the roof. Condensation forms when warm moist air touches a surface that is colder than the. Finding water damage on the wall or ceiling is worrying for any homeowner. Buckled or damaged roof sheathing.

This is not workmanship related or an actual roof leak. In turn the droplets of water come off the roof and can soak insulation. Improper ventilation and insulation of home attic space can produce high humidity levels and trap. The moisture can also run down ceilings and walls creating stains.

It s no surprise that this tends to occur more in colder months when home heating is more common and intense. Condensation on your ceiling can cause water damage and promote the growth of mold or mildew. So they equalize pretty quickly. Moisture frost and ice buildup on roofing nails.