Dew point / Green Building & Sustainable Home Renovation Information & Advice

...dew point shift Understanding what the dew point means in home building is about understanding when the air will condense to the point that it leaves behind condensation. And relocating the dew point is the most critical technical goal of a thermal overcoat. In a traditional 1970s wall with fiberglass batts, the dew po...

...point will come when the air in homes is saturated to the point where it starts to leave moisture behind on cold surfaces. That, in a nutshell, is what the dew point is all about. Understanding where and when that will happen is the key to designing durable, efficient and homes.  What exactly is the dew point? Underst...

...dew point temperature. When this happens within a wall assembly, liquid water forms inside the structure, leading to severe issues: Mold and mildew growth. Rotting of wood framing and sheathing. Loss of insulation R-value when batt insulation gets wet. The role of the dew point The dew point is constantly moving base...

...dew point temperature, and for interstitial condensation this condensate (or release of moisture) occurs within the core of the wall, forming water that soaks into building materials.  This may sound just like the surface condensation you would see on windows, however it is not. While the mechanism is the same science ...

...dew in drywall and furniture. Condensation is bad news in multiple ways – it indicates where a home has weak spots or thermal bridges in its insulated envelope, it points to problems in high humidity levels in the home – possibly coming from hidden problems in basements, crawlspaces, walls or ventilation systems – and ...

...dewpoint in a wall is the point where the drop in temperature causes air to contract, and water vapor turns to liquid. Since the warmer the air is the more moisture it can hold, where the dewpoint will be in your wall is determined by the difference in temperature from indoor to out, and the amount of moisture in the a...