Attic Insulation Condensation

Moisture forming on the glass window panes or other flat surfaces.

Attic insulation condensation.

It can also cause mold to grow on roof sheathing trusses rafters and ceiling floor. This condensation can form droplets of water and accumulate into the insulation below. Traces where water has trickled down the walls. Applying mastic gum to the duct joints and adding an r6 layer of insulation around your sheet metal ducts goes a long way toward protecting your attic and ceiling.

Condensation will form in your attic if warm moisture laden air comes into contact with a cold surface. And the same factors that cause attic condensation problems also cause ice build up on roof edges which can lead to ice damming. Warm air escaping from a duct into a cold attic can create condensation and encourage mold growth. Next take a look at your attic ventilation.

For a more detailed explanation see my article on condensation in buildings. Attic condensation during the winter can decrease the effectiveness of insulation and over time can cause significant damage to structural elements in the attic such as rafters or trusses. Noticeable musky damp odor. Signs of condensation in the attic may include the following.

Insulation is responsible for keeping warm air inside your living space and out of the attic where it can lead to condensation. This accumulation can leak through the attic floor and into your living space. Check your ventilation system.