Special Maintenance Considerations - Effective Building Maintenance: Protection of Capital Assets - page 126

Table 4-11. Remediation of Water Damaged/Mold Infested Materials
————————————————————————————————
*Clean-up Methods:
Method 1 : Wet vacuum (in the case of porous materials, some mold spores/fragments will
remain in the material but will not grow if the material is completely dried). Steam cleaning
may be an alternative for carpets and some upholstered furniture.
Method 2 : Damp-wipe surfaces with plain water or with water and detergent solution (ex-
cept wood —use wood floor cleaner); scrub as needed.
Method 3 : High-efficiency particulate air (HEPA) vacuum after the material has been thor-
oughly dried. Dispose of the contents of the HEPA vacuum in well-sealed plastic bags.
Method 4 : Discard - remove water-damaged materials and seal in plastic bags while inside
of containment, if present. Dispose of as normal waste. HEPA vacuum area after it is dried.
(1) maintain the building at a positive pressure at all times and (2) operate
HVAC systems to provide the best humidity control that they can.
Iniltration of hot, humid outdoor air into each area of the building
must be eliminated by maintaining positive pressurization in all build-
ing areas at all times. Infiltration is defined as the “uncontrolled” intro-
duction of outdoor air into a building. One obvious source of infiltra-
tion is through open doors, but infiltration can also occur through walls,
through the cracks around windows and other wall openings, through
roofs, etc.
For internal pressurization to be effective in eliminating infiltra-
tion, the building pressure must equal or exceed the pressure due to
wind velocity. At a typical wind speed of 10 mph during the cooling