Science and technology 2001.
Coal tar pitch roofing materials.
Coal tar pitch is a thick black liquid that remains after the distillation of coal tar.
It is available in white grey and black.
2 9 coal tar pitch built up roofing.
Coal tar s unique molecular structure provides a system that resists water and vapor penetration insect damage chemical attack uv exposure and most elements considered common enemies to other roof membrane systems.
A coal tar roofing system represents the industry s premier built up roof membrane assembly.
Coal tar pitch built up roof.
Coal tar pitch membranes using coal tar saturated organic felts is one of the oldest systems listed in table 2 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.
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 is considered the product of choice for roofs which have ponding water due to its superior ability to withstand extended exposure to water.
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 is melted on site in an industrial kettle and applied to the roof as a hot liquid.
It is solid for all practical purposes at room temperature.
Both coal tar and coal tar pitch contain many chemical compounds including carcinogens such as benzene.
Coal tar is an aromatic hydrocarbon and a by product from the coking process of the coal industry.
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.
Using white roof material helps reduce the heat island effect and solar heat gain in the building.
Kee stone stands out above the rest.
Coal tar pitch roofing in the processing of coal to make coke for steel making volatile compounds are collected from the coking ovens condensed and separated and become the base of hundreds of raw materials including dyes plastics and a byproduct called coal tar pitch.
It is historically in abundance where coal is used in steel manufacturing.
Protect your building with the industry s highest performing thermoplastic kee roof membrane kee stone fb 60.
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.
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.
The traditional coal tar built up roof is one of the most reliable and longest lasting low slope commercial flat roofing systems available.
