Laserfiche WebLink
• <br /> IR Thermography <br /> Amec Foster Wheeler utilized a Fluke TiR infrared (IR) camera to examine building materials for <br /> thermal gradients that could represent areas of possible excess moisture. Accessible building <br /> materials that appeared to be relatively cold in an IR image were assessed directly using a moisture <br /> meter and by manually examining materials. <br /> Moisture Testing <br /> Moisture content was measured in remaining gypsum wallboard (GWB) using a direct-reading <br /> moisture meter and a non-penetrating moisture meter2. Moisture content readings were collected to <br /> identify building materials that contained sufficient moisture to support and amplify mold growth. The <br /> instruments used are designed for quantitative measurement of moisture content in wood, gypsum <br /> wallboard, plaster, and concrete. <br /> Wood with a moisture concentration of 20 percent or greater is considered "wet"and capable of <br /> supporting mold growth. Moisture content in gypsum wallboard is measured on a relative percent <br /> scale using the Delmhorst BD-2100. A moisture content of 0 to 0.4 percent is considered "dry," 0.5 to <br /> 0.9 percent is considered "borderline" and 1.0 percent and greater is considered "excess moisture" <br /> and capable of supporting mold growth. <br /> FINDINGS <br /> Visual Observations <br /> Time Observation <br /> 2:05 pm Arrive on site <br /> 2:15 ESI on roof,taking photos. <br /> 2:25 ESI starts taking photos indoors. <br /> 2:46 Noted kitchen thermostat at 71 F. <br /> 2:48 ESI collected Mycometer sample from air supply diffuser. Appeared to be dirt, no SVG. Sampled <br /> bottom of metal ceiling grid frame adjacent to diffuser. <br /> 2:52 Kitchen—ESI removed grid and filter from air return at floor level—no SVG observed or water <br /> stains noted. <br /> 3:00 ESI collected sample from top of air supply diffuser(ceiling side). <br /> 3:07 ESI collected sample from framing of air intake noted at 2:52,from the surface facing the kitchen. <br /> 1 Delmhorst BD-2100. <br /> 2 Tramex Digital MRX. <br /> 5 <br /> 31 <br />