An Intentionally Used Substance that may be present in the final material/mixture but is not intended as a constituent. For example, this may refer to substances included in a manufacturing process to aid processing, as well as inputs to a reaction process such as reagents, catalysts, monomers. https://healthymaterialslab.org/tool-guides/hml-resources

The ability to regain the initial shape after being deformed.

A substance that damages fertility, sexual function, and normal prenatal or early childhood development. https://healthymaterialslab.org/tool-guides/hml-resources

A natural or synthetic material that is the main ingredient of paint and binds the ingredients together.

An electric circuit that controls any other circuit using a relay or other such device.

The property of a material whereby it gives up its stored energy when deforming force is removed.

Finished flooring made from a resilient material, such as polyvinyl chloride or rubber.

Remote electrical, gas, or water meter digital readouts that are installed near the front of the home in order for utility companies to easily read the home owners usage of the service.

A device designed to open if it detects excess temperature or pressure.

The physical property of a conductor or electric-consuming device to resist the flow of electricity, reducing power and generating heat.

Amounts withheld from progress billings until final and satisfactory project completion.

An admixture used to slow the setting of concrete.

Air removed from a space and vented or reconditioned by a furnace, air conditioner, or other apparatus.

A structure that holds back a slope and prevents erosion. A wall that bears against soil or other material and resists lateral and other forces from the material being held in place.

Persistence of sound after the source stops. When one hears the 10th, 20th, 50th, 100th, etc., reflection of a sound, one hears reverberation.

The horizontal line at the junction of the top edges of two sloping roof surfaces. Peak of a roof where the roof surfaces meet at an angle. Also may refer to the framing member that runs along the ridge and supports the rafters.

Normally a 1 X 4 board let into the studs horizontally to support the ceiling or second-floor joists.

The board placed on the ridge of the roof onto which the upper ends of other rafters are fastened.

A list of substances that a given organization has determined to avoid based on regulation or evidence of potential human health or environmental harm. https://healthymaterialslab.org/tool-guides/hml-resources

Essentially the number of seconds it takes a loud sound to decay to inaudibility after the source stops. Strictly, the time required for a sound to decay 60 dB in level.