Cold Climate Attic Venting

Use rigid metal ducting aluminum or galvanized steel with lengthwise seams facing up and joints sealed with foil tape or duct mastic or rigid plastic pipe.

Cold climate attic venting. Ventilation is all about temperature control and consistency. In cold climates attic ventilation is necessary for maintaining a warmer roof temperature which is essential for venting condensation and preventing ice dams. In cold climates this is an advantage. Attic fans benefits types why use cold climate venting what is an attic fan.

In cold climates the primary purpose of attic or roof ventilation is to maintain a cold roof temperature to control ice dams created by melting snow and to vent moisture that moves from the conditioned space to the attic ventilation acts to bypass the vapour barrier created by most roof membranes. If you vent through a soffit where attic vents are often located the moisture will get sucked back up into the attic or roof venting. In hot climates ventilation is just as important for the opposite reason. Keeping the attic space cool.