Begin by touring your household. Follow your nose, and use your eyes. Two major factors help create conditions for biological pollutants to grow: nutrients and constant moisture with poor air circulation.

Dust and construction materials, such as wood, wallboard and insulation, contain nutrients that allow biological pollutants to grow. Firewood also is a source of moisture, […]

Here are some things that inspectors can keep in mind while examining exterior walls clad in aluminum siding:

Since metal siding can conduct electricity, some jurisdictions require that the siding be grounded as a safety measure.  Inspectors can check with the local authority having jurisdiction (AHJ) to find out if grounding is a requirement.
Aluminum siding can be […]

Adjustable steel columns, also known as screw jacks and beam jacks, are hollow steel posts designed to provide structural support. An attached threaded adjustment mechanism is used to adjust the height of the post.

A few facts about adjustable steel columns:

They are usually found in basements.
In some parts of North America, adjustable steel columns are called lally […]

From studies of people who were exposed to asbestos in factories and shipyards, we know that breathing high levels of asbestos fibers can lead to an increased risk of lung cancer in the forms of mesothelioma, which is a cancer of the lining of the chest and the abdominal cavity, and asbestosis, in which the […]