Mark Meshulam LLC provides consultation, expert witness and testing to architects, contractors, building owners, attorneys, manufacturers and insurance carriers for:Building envelope products, means, methods and detailingSpecialization in windows, curtainwalls, entrances, skylights and engineered architectural productsSpecialization in laboratory and field testing of facade mockups and on-site windows and curtainwallsSpecialization in window safety, glass safety, fall prevention and safety glazingMark Meshulam LLC offers forensic investigation, testing and repair for:Window leaksCurtainwall leaksMasonry and wall leaksWindow and building condensationFalls from windows, window fallsBroken glass injuriesMark Meshulam LLC performs the following testing and methods in the field (at the property) or in testing laboratories anywhere in the US:WINDOW WATER TESTING ASTM E1105 – 00(2008) ASTM E331 – 00(2009) AAMA 511 AAMA 501.2 AAMA 502WINDOW AIR INFILTRATION TESTING ASTM E783 – 02(2010) ASTM E283 – 04(2012)INSULATED GLASS DEWPOINT TESTING ASTM E 546WALL & MASONRY WATER TESTING ASTM E 2128 RILEM TEST METHOD 11.4INFRARED TESTING OF BUILDING WALLS ASTM C 1153 ASTM C 1060-90ROOF TESTING ASTM D 5957SEALANT & CAULK TESTING ASTM C 1521 – 09e1 ASTM C 1193Mark Meshulam has created authority website ChicagoWindowExpert.com.It hosts over 70 original articles about windows, glass and building exteriors.ChicagoWindowExpert receives over 300 visitors per day. Background: Mark Meshulam has 30+ years as a window & glazing contractor. His hundreds of projects include millions of square feet of glass glittering in the Chicago skyline.