What is Vermiculite? Vermiculite is a lightweight, granular material. It is produced by heating mica-like minerals to expand them like...

What is Asbestos, Exactly? Asbestos is a naturally occurring fibrous mineral known for its heat resistance and durability. It was widely...

What is Lead Paint? The term "Lead Paint" refers to any paint that contains lead. These paints were most often oil based and used...

What is Knob and Tube? K&T (Knob and Tube) wiring was the first widely-installed type of electrical wiring for residential homes. It was...