Test Your Mettle at Construction Research Lab

Mark Meshulam is a construction consultant, glass consultant and expert witness located in Chicago, IL, USA This article, originally written in 2006 is being reprinted here in very fond memory of my friend A.A. Sakhnovsky, lovingly known as “Sak”, who passed away on Fathers Day, June 19, 2011. He was about 85 years old.   The Construction Research Laboratory is an amazing, one-of-a-kind place located in a…

Leaks and Problems with Vinyl Windows

 Vinyl windows, also known as PVC (polyvinyl chloride) windows or uPVC (unplasticized PVC) are a ubiquitous part of the residential window landscape, and not only that, there are a lot of them out there. There are many satisfied vinyl window customers and I have seen many good installations, however there can also be problems with vinyl windows. Some problems are common to all windows,…

Choosing a Window Consultant or Exterior Building Consultant

Mark Meshulam is an expert witness and consultant for building exteriors. These days you can pretty much find a consultant for anything. Without trying very hard, you can find: So it stands to reason that you can find a consultant to assist you with your windows or the exterior of your building. As it happens, there are quite a few of us providing construction consultation…

Fixing Window Leaks in Tall Buildings

Mark Meshulam is an expert witness and exterior facade consultant for window leaks in tall buildings. As we head into our rainy season, there are many participants in a relatively recent social experiment – life in a high-rise – who will discover that their “building envelope” is not enveloping them as well as it did last season. Just like a bucket or a car tire,…

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