Show Certified Ventilation Protects Insulation I Proper ventilation can help you preserve the saving energy effectiveness effective effective- ness of your attic insulation insulation in winter and summer sum mer er by helping to keep it dry During the heating season insulation can become especially vulnerable to moisture Warm water vapor that escapes from the kitchen and bathrooms into attic will condense when it meets the colder outside air explains the Home Ventilating Institute II VI At the worst there may be telltale signs of frost on the attic rafters or wet spots on a room ceiling in which cases structural parts of the house as well welt as the insulation are subject sub sub- to damage Cooking bathing and laundry can put a lot of water vapor into the air as can humidifiers Today's tight con con- to prevent tom G Today's range renge hoods hood provide from to 1060 for heavy duty cookIng cook cook- Ing barbecuing Unite Unfit which bear the tha label are certified cert fled and tested tatted leakage of heated air in winter and cooled air in summer tends to trap water vapor in the house Water vapor generated d dIn in the kitchen bathroom or laundry seeks exits through the closest ceilings or walls walts Vapor barriers are designed to block vapor passage but breaks in the seal around fixtures and other openings can let water vapor pass Ventilation can prevent condensation in p f JJ H L l The Tha popular combination bath providing fen fan providing heat light and end ventilation 1 I IA A powerful new attic ventilator ven yen wall mounted deliver deliver de de- liver 2080 2000 Automatic thermostat will wUI adjust from 70 degree degrees to degrees degree insulation and building structure by exhausting |