Commissioning Consultants, LLP provides water infiltration testing services that comply with the ASTM E-1105 test method. This field test determines if water penetration at the moisture barrier should be expected for installed windows, skylights, doors, and curtain wall assemblies. For this test, a pressure chamber is installed on the indoor side and a spray rack is positioned on the outside. The chamber pressure and spray nozzles are then controlled to simulate wind-driven rain on the assembly.