Mold & Moisture on Windows - Causes & Solutions
Project Report > Mold & Moisture on Windows
- Adequate Ventilation Not Present
- Recommended ventilation of residential homes should be between 0.35 and 0.7 air changes per hour (ACH).
- Desired Ventilation Rate: 0.5 ACH (Air Changes per Hour)
- Improve ventilation by one of the methods listed below:
- Install ducted HRV (Venmar Constructo 1.0) in the utility room with registers placed in accordance with the diagram above, and all ducting run through the attic space.
- Major condensation noted on window.
- Kitchen range exhaust hood not ducted to the exterior.
- Minor surface mold growth noted on window sill.
- RH:61.3% Temp:53.8°F CO2:2718ppm CO: 0ppm
- All condensation should cease once ventilation improvements have been enacted.
- Major condensation noted on windows
- Moderate surface mold growth noted on windowsills and casing
- RH:60.1% Temp:67.7°F CO2:2761ppm CO: 0ppm
- No increased moisture content noted in building materials, except active condensation noted on ceiling.
- Inspection with FLIR revealed major insulation defects in exterior wall.
- Major condensation noted on windows.
- Obvious dripping condensation noted on ceiling at exterior corner.
- Significant visible mold growth noted on window sills and casings.
- Moderate visible surface mold growth noted on ceiling at exterior corner.
- Minor surface mold growth noted on baseboards at exterior corner.
- RH:60.6% Temp:68.5F CO2:2786ppm CO: 0ppm
- 110CFM Broan exhaust fan installed in this area.
- Increased moisture content noted in baseboard and sheetrock immediately behind the toilet and adjacent to the shower.
- Mold growth is likely present in this wall cavity.
- Storage area sufficient to house an HRV located in this area
- RH:57.9% Temp:69.2°F CO2:2840pm CO: 0ppm
- Install splash-guard to prevent further water damage to the walls.
- Address wet building materials.
- 40CFM nutone exhaust fan in this area
- Minor mold growth around the laundry exhaust fan.