Here's another classic - an article by Joe Lstiburek - that's on our list of essential readings for building professionals. It's really only essential for folks dealing with masonry buildings. But it will provide food for thought to everyone with an interest in creating buildings that last.

Let me start out with a couple of observations based on being around a long time. What is aging our buildings are three things: water, heat and ultra-violet radiation. Of the three, water is the worst. And the thing about water is that it is not how wet something gets, but does it dry after it gets wet. And the thing about drying is that it requires energy. And there is the rub.

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