Water will condense on the warm side of a metal roof deck when the warm air comes into contact with a cold roof deck.   Condensation is a complicated problem for building designers, HVAC contractors, roofing contractors, window installers, and other building envelope contractors.  It isn’t uncommon for a building to change occupancy usages, heating…

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Much has been made of the claim of a “free roof” or “can’t hurt to make a claim, all they can say is no” When you hear a roofing company representative repeat either or both of these statements, then you know you are in the midst of a scam. First, and most obviously, nothing of…

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After every heavy rainfall, flat roofers are sure to get many phone calls from building owners reporting “roof leaks.” It is very common to diagnose the leak as originating from a place other than the roof. However, the leak will appear to be a roof leak from the perspective of the building owner. There are…

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It’s often I hear from homeowners with flat roofs “flat roofs just leak” or “I ought to build a pitched roof above my flat roof to prevent leaks.” As a flat roofer, I cringe when I hear these statements. The most valuable buildings in most communities have flat roofs; most businesses have flat roofs. Flat…

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The purpose of ventilating the attic in a residential roof situation is to reduce the temperature gradient between the outside temperature and the attic temperature. This temperature gradient, coupled with other factors such as dew point and relative humidity, may result in condensation in the attic and the accumulation of an unhealthy attic environment. Another…

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