How to Stop Attic Moisture Accumulation
Moisture within a building spray foam insulation causes problems such as ice damage, peeling paint, wood deterioration and mildew. Moisture forms when water vapor migrates to and condenses on cold surfaces. If left uncontrolled, moisture can wreak havoc and result in serious structural damage as well as costly repair bills. Stopping attic moisture accumulation and controlling humidity throughout the house is the best way to ward off the many problems it can cause, including damage to walls, ceilings, attics and roofs, and health risks for homeowners.
The primary source of attic moisture is condensation that occurs when heated air from the living areas rises through ceilings and reaches cooler attic space. This creates moisture which then leaks down through the roof and attic, causing mold, rot and other structural problems in the home below.
Adding more insulation to the attic will help to prevent warm, moist air from reaching the cold underside of the roof deck. Check that all light fixtures, chimneys and plumbing vents are properly vented to the outside to keep moist air from entering the attic space. Seal cracks around light fixtures and other penetrations to the attic space with caulk or spray foam. Make sure soffit (under eave) vents are not blocked by attic insulation, and if needed install additional vents.
Proper ventilation is vital in attics, crawl spaces and basements to provide a continuous flow of outdoor air to regulate temperature and humidity levels. All bathroom, kitchen, laundry and dryer exhaust fans should be vented to the outside. Kitchen ranges, bath and laundry exhaust fans should have vapor retarders to help limit water vapor migration from these spaces.
Gonz Insulation
504 Walnut St, Farmington, MO 63640, USA
573-203-7055