Coal Tar Pitch Roofing

Bituminous roofing hits the market back in the pre world war ii years there were two bituminous substances bitumens that dominated the roofing industry.

Coal tar pitch roofing.

A waterproofing material used since the beginning of time coal tar pitch is a superior and sustainable raw material that is ideal for use within a roofing membrane system. The traditional coal tar built up roof is one of the most reliable and longest lasting low slope commercial flat roofing systems available. Coal tar pitch is a black or dark brown amorphous residue produced by the distillation or heat treatment of coal tar. These systems perform very well historically but are limited to very low slope applications and must be gravel surfaced because of the low viscosity of coal tar pitch at normal rooftop temperatures.

New coal tar pitch roof installations however are extremely rare. Historically coal tar pitch was used as a component on the first sealed roads has served as a heating element and was used to manufacture paints synthetic dyes and. Both coal tar and coal tar pitch contain many chemical compounds including carcinogens such as benzene. Application tools such as melting kettles mops and mop carts needed to be dedicated to either pitch or asphalt.

2 9 coal tar pitch built up roofing. Poisonous gases are produced in fire reasons for citation. It is used as a base for coatings and paint in roofing and paving and as a binder in asphalt products. Because of the different properties of asphalt and coal tar pitch roofers were careful not to mix the two materials on the same project.

Coal tar pitch is a thick black liquid that remains after the distillation of coal tar. Coal tar pitch membranes using coal tar saturated organic felts is one of the oldest systems listed in table 2. It is used as a base for coatings and paint in roofing and paving and as a binder in asphalt products. It is a solid at room temperature and exhibits a.

Coal tar pitch is a dark brown to black thick liquid with a strong odor that remains after the distillation of coal tar. Coal tar pitch is produced by distilling or heat treating coal tar which is a by product of the production of coke or coal gas. Coal tar pitch is melted on site in an industrial kettle and applied to the roof as a hot liquid. Coal tar pitch was a by product of processing coal to make coke which in turn was used in making carbon steel and electrodes for the aluminum industry.

Coal tar is considered the product of choice for roofs which have ponding water due to its superior ability to withstand extended exposure to water.