I was recently called by one of the largest builders in the Midwest to a town home development where mildew growth was appearing in wall corners and near some baseboards along exterior walls… In my initial walk-through with the builder, I scanned the interior drywall surfaces with a Tramex moisture meter, which registered a moisture content (MC) of more than 80% in some places—well above the level where wood starts to decay. Based on these initial findings, we made some exploratory cuts through the drywall where we found water droplets trapped behind the poly vapor retarder.

Source control, ventilation, and filtration are the keys to healthy indoor air quality. Dehumidification is important too.

475 offers the CONTEGA SOLIDO IQ-D tape as a double-sided window tape option. This double-sided tape can be used for “zero-reveal” taping.  This approach can be used on the interior and/or the exterior. Zero-reveal-taping is the simplest and most robust way to air and waterproof the window. Pro Clima has put a lot of thought into airtight window installation methods, and offers additional adhesive strips integrated into their tapes to simplify Zero-Reveal-Taping. They figured out that you can save an incredible amount of time by doing much of the airsealing BEFORE the windows are installed into the rough opening.