WebI would search GreenBuildingAdvisor.com for "flash and batt dew point" and read as much as you can -- there's some threads that mention roofs, like this one. Unfortunately the site is broken right now, as it often is on weekends. But there is a treasure trove of info there, if you use google cache to get to it. WebThe dew point temperature is a big complicated formula that we won’t get into here, but it’s basically a function of indoor temperature and relative humidity. The easiest thing to do …
Dry Bulb, Wet Bulb and Dew Point Temperatures - Engineering ToolBox
WebFeb 11, 2014 · The dew point is the temperature at which air is saturated with water vapor, which is the gaseous state of water. When air has reached the dew-point temperature at a particular pressure,... WebNov 15, 2011 · This conclusion is valid even for high humidity interior environments, such as museums, as 70°F/50%RH air has a dew point of about 50 °F/10°C. Only through-fasteners such as screws, brick ties and … dyslexia and the nervous system
Energsmart Insulation Thoughts on Flash and Batt Hybrid …
Web“Flash and batt” is a popular technique for insulating walls but if you are going to use this technique, make sure to start with at least 2 inches of closed cell foam first. A one inch ... WebRigid foam must be thick enough to prevent condensation on the roof sheathing. When combining exterior foam insulation with fiberglass, cellulose, or mineral-wool roof insulation, the foam layer must be thick enough to keep the sheathing temperature above the dew point. Otherwise, water vapor can condense on the back side of the sheathing ... WebNov 15, 2011 · This conclusion is valid even for high humidity interior environments, such as museums, as 70°F/50%RH air has a dew point of about 50 °F/10°C. Only through-fasteners such as screws, brick ties and roof screws would be at risk in such high RH environments. dyslexia and the workplace