ROOFING
Any material used as a roof covering, such as shingles, slate, flexible membranes, sheet metal, or tile.
Any material used as a roof covering, such as shingles, slate, flexible membranes, sheet metal, or tile.
A rotating part or component. Some desiccant dehumidifiers have a rotor or wheel with honeycomb openings, which are coated with silica gel to enhance adsorption.
(entry) – The means by which toxic material may gain access to an organism, such as inhalation, ingestion and skin absorption, and intravenous, subcutaneous, intermuscular administrations.
General rules applied by those who have experience could be said to be an educated guess.
A highly infectious gram-negative bacterium, often found in sewage. Gram-negative bacteria produce endotoxins that are released at cell death and destruction, and which can cause allergic response or illness.
To recover damaged materials, reducing the amount of the loss; damaged articles or stock which retain monetary value; the disposal of such damaged articles by resale.
Relatively potable (drinkable, healthy) water that may come from a variety of sources, especially from broken fresh water pipes. Water that will not cause disease or harm when consumed by humans.
The control of physical factors in the human environment that could harm development, health or survival. The process of bringing an environment to a state that will not harm human health.
The act or process of reducing micro organisms to safe levels as judged by public health agencies; a substance that limits or controls micro organisms when used according to manufacturers instructions.
Fungi or plants that live on dead or decaying organic matter. cp _parasitic_