A black or greenish-black slimy mould associated with prolonged water damage, especially in sewage-damage situations, involving cellulose materials, such as wallpaper, wallboard, and ceiling tiles. Stachybotrys mould produces mycotoxin that can cause serious health problems if exposure to them is over extended periods
Used air, as in a chimney or air duct, that moves upward because it is warmer than the surrounding atmosphere. In larger buildings the stack effect can overpower the mechanical system and disrupt normal ventilation and circulation.
1. To apply pigments or colours in a vehicle which permits them to be absorbed: 2. also any unsightly discoloration.
A sealer designed to block the transmission of stains.
An application for textiles which imparts some degree of protection against staining.
A diagonal joist, or stringer which supports the steps on a stairway.
Practices that are common to reasonably prudent members of the trade who are recognized in the industry as qualified and competent.
(staph) – A highly resistant, gram-positive pathogenic (disease-causing) organism that is used in the evaluation of disinfectants.
To remove unwanted residues by the application of detergents and steam:
Use of a physical or chemical procedure to destroy all microbial life including highly resistant bacterial endospores. cp _disinfect, sanitize_