
Stopping Condensation



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Green Attic Insulation Can Help!
Thermal Barrier
Moisture Barrier
Pressure Barrier

Surface Temperature Differences Create Condensation When Vapor Passes Through
This is a common example of window condensation in winter. If the window is wood ( organic surface) it can easily be affected by mold and eventually rot.
Keeping the surface temperature above dew point will help reduce condensation. Common locations for condensation are:
✓ Attic Can Lights
✓ Cathedral Ceilings
✓ Bath Fan Exhausts
✓ Bedroom Windows


Condensation On Sheathing Contributes To Mold Spread
The Dew Point is the temperature at which this water vapor being held in the air condenses into a liquid. So, higher relative humidity the closer the dew point will be to the temperature of the air.
Vapor Barrier: Advanced Moisture Control
Air should not pass through the building envelope into the wall cavity through unintentional gaps on the buildings envelope. A Sealed Cavity is essential and supplemental to insulation.


Extreme Conditions Causing
✓ Are gaps in the building envelope causing moisture?
✓ Does home contain vapor barrier and ventilation?
✓ Cracking on type baseboard and crown molding
Service Areas
Northwest Suburbs
North Shore
